gh0strat | cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351

General

Target

cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe
Size

374KB
MD5

6c2c08f590997758a68212c53ffc2f0c
SHA1

e6878c8da32a8e4a1f41b0551df980a36f897f42
SHA256

cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351
SHA512

5153737d6290bb6cff4bb1e237a8d3a20603c7e69eec8af6999092c81f13976d43bcc910ab5c77fa887c7b96182efb065137541235f50d354aa099b97b8502a5
SSDEEP

6144:NjO+L1Czkq7KTW1Dl/saQ9rtYm3okqoBSpH50KcddsVRZdaiYviQJqOC5cpQwmB:ZMzpOTY+JzYmE7R55udm7U5JTqwe

Score

10^/10

gh0strat purplefox rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2244-3-0x0000000010000000-0x00000000101A9000-memory.dmp	purplefox_rootkit
behavioral2/memory/2244-4-0x0000000010000000-0x00000000101A9000-memory.dmp	purplefox_rootkit
behavioral2/memory/2244-16-0x0000000010000000-0x00000000101A9000-memory.dmp	purplefox_rootkit
behavioral2/memory/3512-22-0x0000000010000000-0x00000000101A9000-memory.dmp	purplefox_rootkit
behavioral2/memory/3512-27-0x0000000010000000-0x00000000101A9000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/2244-2-0x0000000010000000-0x00000000101A9000-memory.dmp	family_gh0strat
behavioral2/memory/2244-3-0x0000000010000000-0x00000000101A9000-memory.dmp	family_gh0strat
behavioral2/memory/2244-4-0x0000000010000000-0x00000000101A9000-memory.dmp	family_gh0strat
behavioral2/memory/2244-16-0x0000000010000000-0x00000000101A9000-memory.dmp	family_gh0strat
behavioral2/memory/3512-20-0x0000000010000000-0x00000000101A9000-memory.dmp	family_gh0strat
behavioral2/memory/3512-22-0x0000000010000000-0x00000000101A9000-memory.dmp	family_gh0strat
behavioral2/memory/3512-27-0x0000000010000000-0x00000000101A9000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	Jklde.exe

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe

Executes dropped EXE 1 IoCs

pid	Process
3512	Jklde.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2244-0-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/2244-2-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/2244-3-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/2244-4-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/2244-16-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/3512-20-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/3512-22-0x0000000010000000-0x00000000101A9000-memory.dmp	upx
behavioral2/memory/3512-27-0x0000000010000000-0x00000000101A9000-memory.dmp	upx

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
676	PING.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe
Token: 33	3512	Jklde.exe
Token: SeIncBasePriorityPrivilege	3512	Jklde.exe
Token: 33	3512	Jklde.exe
Token: SeIncBasePriorityPrivilege	3512	Jklde.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 3512	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe	91
PID 2244 wrote to memory of 3512	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe	91
PID 2244 wrote to memory of 3512	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe	91
PID 2244 wrote to memory of 3324	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe	92
PID 2244 wrote to memory of 3324	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe	92
PID 2244 wrote to memory of 3324	2244	cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe	92
PID 3324 wrote to memory of 676	3324	cmd.exe	94
PID 3324 wrote to memory of 676	3324	cmd.exe	94
PID 3324 wrote to memory of 676	3324	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe
"C:\Users\Admin\AppData\Local\Temp\cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2244
- C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Jklde.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Jklde.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3512
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\CF58B2~1.EXE > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3324
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Jklde.exe

Filesize
374KB

MD5
6c2c08f590997758a68212c53ffc2f0c

SHA1
e6878c8da32a8e4a1f41b0551df980a36f897f42

SHA256
cf58b207bf60574254b7bce9f588a36fa9d2466128403c3d1eb8b85f1be84351

SHA512
5153737d6290bb6cff4bb1e237a8d3a20603c7e69eec8af6999092c81f13976d43bcc910ab5c77fa887c7b96182efb065137541235f50d354aa099b97b8502a5

Download Submit
memory/2244-0-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/2244-2-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/2244-3-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/2244-4-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/2244-16-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/3512-20-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/3512-22-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download
memory/3512-27-0x0000000010000000-0x00000000101A9000-memory.dmp

Filesize
1.7MB

Download

Analysis

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