---
# System prepended metadata

title: Hijack Execution Flow IOC

---

# Hijack Execution Flow IOC

## DLL Search Order Hijacking

這邊主要的 IOC 都是 Hijack 那隻 Dll 的 Hash Value

### BOOSTWRITE (Loader)

[Report](https://www.fireeye.com/blog/threat-research/2019/10/mahalo-fin7-responding-to-new-tools-and-techniques.html)

Signed
- MD5: a67d6e87283c34459b4660f19747a306
- SHA-1: a873f3417d54220e978d0ca9ceb63cf13ec71f84
- SHA-256: 18cc54e2fbdad5a317b6aeb2e7db3973cc5ffb01bbf810869d79e9cb3bf02bd5
- C2: 109.230.199[.]227
- Compiliation Time: 2019-05-20 09:50:55 UTC
- mango ENTERPRISE LIMITED, Valid Between 2019-05-22 00:00 UTC through 2020-05-21 23:59 UTC

Not Signed:
- MD5: af2f4142463f42548b8650a3adf5ceb2
- SHA1: 09f3c9ae382fbd29fb47ecdfeb3bb149d7e961a1
- SHA256: 8773aeb53d9034dc8de339651e61d8d6ae0a895c4c89b670d501db8dc60cd2d0
- C2: 109.230.199[.]227

### Crutch

[Report](https://www.welivesecurity.com/2020/12/02/turla-crutch-keeping-back-door-open/)

- SHA-1: A010D5449D29A1916827FDB443E3C84C405CB2A5
- dropped at `C:\Intel\~intel_upd.exe`
- PDB Path: `C:\Users\user\Documents\Visual Studio 2012\Projects\MemoryStarter\Release\Extractor.pdb` and `C:\Users\user\Documents\Visual Studio 2012\Projects\MemoryStarter\x64\Release\Extractor.pdb`
- Decode Their Payload with RC4 Key `E8 8E 77 7E C7 80 8E E7 CE CE CE C6 C6 CE C6 68`

### Downdelph

[Report](https://www.welivesecurity.com/wp-content/uploads/2016/10/eset-sednit-part3.pdf)

Filename:
- shcore.dll
- dnscli1.dll
- apisvcd.dll

### TerraTV

[Report](https://www.welivesecurity.com/2020/07/09/more-evil-deep-look-evilnum-toolset/)
[IOC Github Page](https://github.com/eset/malware-ioc/tree/master/evilnum#terratv)

dll:
- 15159.ocx: E0957B2421A6EF3237A33A37DA8B52A9F29863D6
- ACTIVEDS.dll: 1F287AA922911F72F68B4B0C8645B4C909EB07B9

path:
- `C:\Users\Public\Public Documents\57494E2D3850535046373333503532\`

### BlackOasis

[Report](https://securelist.com/blackoasis-apt-and-new-targeted-attacks-leveraging-zero-day-exploit/82732/)

dll:
- `C:\ProgramData\ManagerApp\d3d9.dll`

### InvisiMole

[Report](https://www.welivesecurity.com/2018/06/07/invisimole-equipped-spyware-undercover/)

[IOC 連結](https://github.com/eset/malware-ioc/tree/master/invisimole)

## DLL-Sideloading

### APT19

[Report](https://unit42.paloaltonetworks.com/new-attacks-linked-to-c0d0s0-group/)

MD5: CD8C2BB644496D46BF1E91AD8A8F882B
SHA1: CC6EBEEA48A12B396C5FA797E595A0C3B96942DE
SHA256: 3EA6B2B51050FE7C07E2CF9FA232DE6A602AA5EFF66A2E997B25785F7CF50DAA
Size: 137728 Bytes
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Compile Time: 2015-11-18 15:03:50
C2: www.supermanbox[.]org:22

MD5: 26E863F917DA0B3F7A48304EB6D1B1D3
SHA1: F7984427093BA1FC08412F8594944CEFE2D86CBF
SHA256: 3577845D71AE995762D4A8F43B21ADA49D809F95C127B770AFF00AE0B64264A3
Size: 138752 Bytes
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Compile Time: 2015-11-19 16:57:29
C2: www.jbossas[.]org:22

MD5: B06A3A9744E9D4C059422E7AD729EF90
SHA1: 9BA2249F0A8108503820E2D9C8CBFF941089CB2D
SHA256: EA67D76E9D2E9CE3A8E5F80FF9BE8F17B2CD5B1212153FDF36833497D9C060C0
Size: 136704 Bytes
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Compile Time: 2015-11-16 16:21:22
C2: supermanbox[.]org:22

MD5: 1CB673679F37B6A3F482BB59B52423AB
SHA1: B630B7A8FE065E1A6F51EE74869B3938DC411126
SHA256: B690394540CAB9B7F8CC6C98FD95B4522B84D1A5203B19C4974B58829889DA4C
Size: 126976 Bytes
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Compile Time: 2015-07-15 09:38:15
C2: www.microsoft-cache[.]com

MD5: 39A95C4CBF28EAA534C8F4FC311FE558
SHA1: F6AEE373F2517F2FB686284C27A84A20999A15A5
SHA256: CCF87057A4AB02E53BFF5828D779A6E704B040AEF863F66E8F571638D7D50CD2
Size: 1973747 Bytes
File Type: PE32 executable (GUI) Intel 80386, for MS Windows
Compile Time: 2013-06-21 06:26:37
C2: www.microsoft-cache[.]com

MD5: 8AFECC8E61FE3805FDD41D4591710976
SHA1: 615B022A56E2473B92C22EFA9198A2210F21BDC3
SHA256: DE33DFCE8143F9F929ABDA910632F7536FFA809603EC027A4193D5E57880B292
Size: 126980 Bytes
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Compile Time: 2015-07-15 09:38:15
C2: www.microsoft-cache[.]com

MD5: 2161C859B21C1B4B430774DF0837DA9D
SHA1: 380FB5278907FAF3FCA61910F7ED9394B2337EDA
SHA256: DE984EDA2DC962FDE75093D876EC3FE525119DE841A96D90DC032BFB993DBDAC
Size: 117248 Bytes
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Compile Time: 2015-07-08 13:18:55
C2: www.microsoft-cache[.]com

