gh0strat | a66d1021e54269963e9a54892869d569ffa1c74d9fb1b67f023ea5fdfd90c1a6

General

Target

PO2008042236.exe
Size

3.3MB
MD5

e8ac867e5f51bdcf5ab7b06a8bced131
SHA1

2ef0bcf55f35494572ef21556660e41be31d0eec
SHA256

a66d1021e54269963e9a54892869d569ffa1c74d9fb1b67f023ea5fdfd90c1a6
SHA512

3816fe7a1ef541ccbb2f0d436b53af2b122dbb28eebd1f220ac77be3526be605f6ae46f19200459de45b2245e044bcd534fdf9ae4a160ad3dff0f2ab74e8d86e
SSDEEP

49152:8baomD/6v0Dcwqw8qsT7WnGAZwZptdCW:zSbqszIYCW

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/5056-21-0x0000000003100000-0x000000000328F000-memory.dmp	family_gh0strat
behavioral2/memory/5056-36-0x0000000010000000-0x0000000010139000-memory.dmp	family_gh0strat
behavioral2/memory/5056-39-0x0000000010000000-0x0000000010139000-memory.dmp	family_gh0strat
behavioral2/memory/5056-47-0x0000000010000000-0x0000000010139000-memory.dmp	family_gh0strat
behavioral2/memory/5056-49-0x0000000010000000-0x0000000010139000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
Gh0strat family
gh0strat

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000023d93-17.dat	acprotect

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation	PO2008042236.exe

Executes dropped EXE 1 IoCs

pid	Process
5056	CefRender.exe

Loads dropped DLL 1 IoCs

pid	Process
5056	CefRender.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0007000000023d93-17.dat	upx
behavioral2/memory/5056-18-0x0000000010000000-0x0000000010139000-memory.dmp	upx
behavioral2/memory/5056-36-0x0000000010000000-0x0000000010139000-memory.dmp	upx
behavioral2/memory/5056-39-0x0000000010000000-0x0000000010139000-memory.dmp	upx
behavioral2/memory/5056-47-0x0000000010000000-0x0000000010139000-memory.dmp	upx
behavioral2/memory/5056-49-0x0000000010000000-0x0000000010139000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CefRender.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO2008042236.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	CefRender.exe
Token: 33	5056	CefRender.exe
Token: SeIncBasePriorityPrivilege	5056	CefRender.exe
Token: 33	5056	CefRender.exe
Token: SeIncBasePriorityPrivilege	5056	CefRender.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3292	PO2008042236.exe
3292	PO2008042236.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 5056	3292	PO2008042236.exe	87
PID 3292 wrote to memory of 5056	3292	PO2008042236.exe	87
PID 3292 wrote to memory of 5056	3292	PO2008042236.exe	87

C:\Users\Admin\AppData\Local\Temp\PO2008042236.exe
"C:\Users\Admin\AppData\Local\Temp\PO2008042236.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Users\Public\Documents\cqougn\CefRender.exe
  "C:\Users\Public\Documents\cqougn\CefRender.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Documents\cqougn\CefRender.exe

Filesize
635KB

MD5
d72d77a250d4e62b55b58bbbb658c2ed

SHA1
f4d50a66480f76465baad27282964637d3e604b0

SHA256
3fe0ec3cf24d090015cb3c1f0e312a1670e83f859d9d7e7d845af217c72e98ea

SHA512
b765fda2a5b190bf76da68dda0f628075a721c306703cf30931714be2ad5b0159fb0d2d53905337947a0c4eeac36509019b6d8a8bd3f84815d0e32492eb918bb

Download Submit
C:\Users\Public\Documents\cqougn\libceo.dll

Filesize
522KB

MD5
830e681f280a9b8b922cf285a9ad8dcb

SHA1
dc147f82b867c8928ff78e307c9192761fba0586

SHA256
84fc5944f9605039d8a11728dbeb3a20616a1f14b7e2e896e4686826ef206050

SHA512
3f8fe3d1329132a2fb16a2f05498a589248b5e65c4c838d72de6468642b785b6e521666f094934eec9e9a7af7c7f5800c1d4c6dc5afbbf7396036f9f88af20a6

Download Submit
memory/3292-0-0x0000000000110000-0x000000000054B000-memory.dmp

Filesize
4.2MB

Download
memory/3292-19-0x0000000000110000-0x000000000054B000-memory.dmp

Filesize
4.2MB

Download
memory/5056-18-0x0000000010000000-0x0000000010139000-memory.dmp

Filesize
1.2MB

Download
memory/5056-21-0x0000000003100000-0x000000000328F000-memory.dmp

Filesize
1.6MB

Download
memory/5056-36-0x0000000010000000-0x0000000010139000-memory.dmp

Filesize
1.2MB

Download
memory/5056-39-0x0000000010000000-0x0000000010139000-memory.dmp

Filesize
1.2MB

Download
memory/5056-47-0x0000000010000000-0x0000000010139000-memory.dmp

Filesize
1.2MB

Download
memory/5056-49-0x0000000010000000-0x0000000010139000-memory.dmp

Filesize
1.2MB

Download

Analysis

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