gh0strat | ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f

General

Target
ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe
Size 1.3MB
Sample240623-lrtk2axhkc
SHA256 ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f
MD5 e81bdc891ecd16fc8a140ddb2c6b76bd
SHA1 60295ab9506d170f6a1418b3d67e2f4e3fc2aa98
SHA512 44c6e0a847eddf1af37cec76ef7cff8c34e11e8efd15ec05dc81a0c9183b529787c75017928caf674b2228767c78b21806f1ec6a2b6ff6b4bdd8752ef19f19a1
SSDEEP 24576:sOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN+Fyzhyz:dHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2164-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3640-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/2164-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3640-11-0x0000000010000000-0x000000001019F000-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	µ¯´°.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	µ¯´°.exe

Executes dropped EXE 2 IoCs

pid	Process
3640	µ¯´°.exe
2860	µ¯´°.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\µ¯´°.exe	ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe
File opened for modification	C:\Windows\SysWOW64\µ¯´°.exe	ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2580	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2860	µ¯´°.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2164	ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe
Token: SeLoadDriverPrivilege	2860	µ¯´°.exe
Token: 33	2860	µ¯´°.exe
Token: SeIncBasePriorityPrivilege	2860	µ¯´°.exe
Token: 33	2860	µ¯´°.exe
Token: SeIncBasePriorityPrivilege	2860	µ¯´°.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 5016	2164	ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe	89
PID 2164 wrote to memory of 5016	2164	ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe	89
PID 2164 wrote to memory of 5016	2164	ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe	89
PID 3640 wrote to memory of 2860	3640	µ¯´°.exe	91
PID 3640 wrote to memory of 2860	3640	µ¯´°.exe	91
PID 3640 wrote to memory of 2860	3640	µ¯´°.exe	91
PID 5016 wrote to memory of 2580	5016	cmd.exe	92
PID 5016 wrote to memory of 2580	5016	cmd.exe	92
PID 5016 wrote to memory of 2580	5016	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe
"C:\Users\Admin\AppData\Local\Temp\ad8d18c0758a26cad4dd82169d2eab53b06519a24aa0593c4ff3ce786ba34f9f.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- 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\AD8D18~1.EXE > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:2580

C:\Windows\SysWOW64\µ¯´°.exe
C:\Windows\SysWOW64\µ¯´°.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3640
- C:\Windows\SysWOW64\µ¯´°.exe
  C:\Windows\SysWOW64\µ¯´°.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2860

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3988,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
1⤵
PID:4556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

µ¯´°.exe

Path C:\Windows\SysWOW64\µ¯´°.exe
Size 11.3MB
SHA256 bd4fa2b230ca124fe6ee79832a5d38673ad779684afa49e004947c2d1012e703
MD5 f649922f900afaa00ebed258a8f29888
SHA1 82df412e0bad7db33ca902b5ef3ff68f4a98fa46
SHA512 f0fbb19ce2b729fbc037ffaf36a48232236f86710831667895aaaf74a3c20bcbd401ad3fc4d791b8bf4c5e063dc48b7718f9761cfd21abb2a3ce52debd72501e
SSDEEP 24576:sOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN+Fyzhyzi:dHPkVOBTKn
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2164-1-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/3640-11-0x0000000010000000-0x000000001019F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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