gh0strat | acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b

General

Target
SB360.exe
Size 1.3MB
Sample240615-dkty8axcpg
SHA256 acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b
MD5 ee89f7922a4ccc1147e7c427c832a35a
SHA1 573708eaf5ea90720c55c54e0dba672a18bc0d32
SHA512 3db6f6e3dffef493c7257031fa03ad2beb7630e3ab36ef11464ab3a9c67abaebc37b949b0f73cc73827f05064db48745543fc0449a69345c9fe2a5b63e837fbb
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNB:QHPkVOBTK
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/4504-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2420-14-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/4504-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2420-14-0x0000000010000000-0x000000001019F000-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	Phija.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"	Phija.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	SB360.exe

Executes dropped EXE 1 IoCs

pid	Process
2420	Phija.exe

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
928	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2420	Phija.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4504	SB360.exe
Token: SeLoadDriverPrivilege	2420	Phija.exe
Token: 33	2420	Phija.exe
Token: SeIncBasePriorityPrivilege	2420	Phija.exe
Token: 33	2420	Phija.exe
Token: SeIncBasePriorityPrivilege	2420	Phija.exe
Token: 33	2420	Phija.exe
Token: SeIncBasePriorityPrivilege	2420	Phija.exe
Token: 33	2420	Phija.exe
Token: SeIncBasePriorityPrivilege	2420	Phija.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 2420	4504	SB360.exe	89
PID 4504 wrote to memory of 2420	4504	SB360.exe	89
PID 4504 wrote to memory of 2420	4504	SB360.exe	89
PID 4504 wrote to memory of 4908	4504	SB360.exe	90
PID 4504 wrote to memory of 4908	4504	SB360.exe	90
PID 4504 wrote to memory of 4908	4504	SB360.exe	90
PID 4908 wrote to memory of 928	4908	cmd.exe	93
PID 4908 wrote to memory of 928	4908	cmd.exe	93
PID 4908 wrote to memory of 928	4908	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\SB360.exe
"C:\Users\Admin\AppData\Local\Temp\SB360.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4504
- C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe"
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2420
- 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\SB360.exe > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:928

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=1036,i,6576818814118437872,11004518367271063231,262144 --variations-seed-version --mojo-platform-channel-handle=3916 /prefetch:8
1⤵
PID:4512

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

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Phija.exe

Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Phija.exe
Size 1.3MB
SHA256 acb615b72532d8020f1fa9afa65c44bd67caa1ec83f39f4b029287e70c344d0b
MD5 ee89f7922a4ccc1147e7c427c832a35a
SHA1 573708eaf5ea90720c55c54e0dba672a18bc0d32
SHA512 3db6f6e3dffef493c7257031fa03ad2beb7630e3ab36ef11464ab3a9c67abaebc37b949b0f73cc73827f05064db48745543fc0449a69345c9fe2a5b63e837fbb
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNB:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2420-14-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/4504-0-0x0000000010000000-0x000000001019F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads