gh0strat | bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec

General

Target
bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe
Size 1.5MB
Sample230831-k1lfcaec53
SHA256 bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec
MD5 c646338e3db607d1b05f4cc078656bbb
SHA1 2accdfe05e4d50a2c2dc5596313b9ed87cd09e14
SHA512 3e98acaac466db3530fed1d7bc850f20b89b467d77d67c8c40f029e89cb796ef4fce94b49279ca975dc24402534bb6274e8dc2163e6dacb2a1c55db6f61c9715
SSDEEP 24576:eYVLN+uGOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:BTT3HPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4280-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4224-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2216-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4280-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4224-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2216-17-0x0000000010000000-0x000000001019F000-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	Jbrja.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"	Jbrja.exe

Executes dropped EXE 2 IoCs

pid	Process
4224	Jbrja.exe
2216	Jbrja.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Jbrja.exe	bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe
File opened for modification	C:\Windows\SysWOW64\Jbrja.exe	bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3084	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2216	Jbrja.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4280	bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe
Token: SeLoadDriverPrivilege	2216	Jbrja.exe
Token: 33	2216	Jbrja.exe
Token: SeIncBasePriorityPrivilege	2216	Jbrja.exe
Token: 33	2216	Jbrja.exe
Token: SeIncBasePriorityPrivilege	2216	Jbrja.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 1492	4280	bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe	82
PID 4280 wrote to memory of 1492	4280	bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe	82
PID 4280 wrote to memory of 1492	4280	bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe	82
PID 4224 wrote to memory of 2216	4224	Jbrja.exe	83
PID 4224 wrote to memory of 2216	4224	Jbrja.exe	83
PID 4224 wrote to memory of 2216	4224	Jbrja.exe	83
PID 1492 wrote to memory of 3084	1492	cmd.exe	85
PID 1492 wrote to memory of 3084	1492	cmd.exe	85
PID 1492 wrote to memory of 3084	1492	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe
"C:\Users\Admin\AppData\Local\Temp\bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4280
- 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\BED0C3~1.EXE > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1492
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:3084

C:\Windows\SysWOW64\Jbrja.exe
C:\Windows\SysWOW64\Jbrja.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Windows\SysWOW64\Jbrja.exe
  C:\Windows\SysWOW64\Jbrja.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:2216

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

Jbrja.exe

Path C:\Windows\SysWOW64\Jbrja.exe
Size 1.5MB
SHA256 bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec
MD5 c646338e3db607d1b05f4cc078656bbb
SHA1 2accdfe05e4d50a2c2dc5596313b9ed87cd09e14
SHA512 3e98acaac466db3530fed1d7bc850f20b89b467d77d67c8c40f029e89cb796ef4fce94b49279ca975dc24402534bb6274e8dc2163e6dacb2a1c55db6f61c9715
SSDEEP 24576:eYVLN+uGOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:BTT3HPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

Jbrja.exe

Path C:\Windows\SysWOW64\Jbrja.exe
Size 1.5MB
SHA256 bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec
MD5 c646338e3db607d1b05f4cc078656bbb
SHA1 2accdfe05e4d50a2c2dc5596313b9ed87cd09e14
SHA512 3e98acaac466db3530fed1d7bc850f20b89b467d77d67c8c40f029e89cb796ef4fce94b49279ca975dc24402534bb6274e8dc2163e6dacb2a1c55db6f61c9715
SSDEEP 24576:eYVLN+uGOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:BTT3HPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

Jbrja.exe

Path C:\Windows\SysWOW64\Jbrja.exe
Size 1.5MB
SHA256 bed0c3698d2a4d0e10fff6678389831f8cd361fe9af7c59acec33dac8c67d6ec
MD5 c646338e3db607d1b05f4cc078656bbb
SHA1 2accdfe05e4d50a2c2dc5596313b9ed87cd09e14
SHA512 3e98acaac466db3530fed1d7bc850f20b89b467d77d67c8c40f029e89cb796ef4fce94b49279ca975dc24402534bb6274e8dc2163e6dacb2a1c55db6f61c9715
SSDEEP 24576:eYVLN+uGOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:BTT3HPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2216-17-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/4224-10-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/4280-0-0x0000000010000000-0x000000001019F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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