gh0strat | 428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5

General

Target

428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe
Size

1.3MB
MD5

5bc273be67f7e47c94bdc60adc3ef45b
SHA1

73b58d4b0d68439c5da50346531c762cb6f3d8ae
SHA256

428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5
SHA512

1d2229458e748fcd62ac7042f35c73e8be8a8e581bdad01e9ebd7e6f39cd6c28abf1410619b82dc9cad3ac9a69188cd03fa9f426eb2acda9f44a332e3de2fed9
SSDEEP

24576:jOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNXFyzhyz:OHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2308-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2372-21-0x0000000000400000-0x0000000000554000-memory.dmp	purplefox_rootkit
behavioral1/memory/2788-28-0x0000000000400000-0x0000000000554000-memory.dmp	purplefox_rootkit
behavioral1/memory/2788-20-0x0000000001230000-0x0000000001384000-memory.dmp	purplefox_rootkit
behavioral1/memory/2308-18-0x0000000000400000-0x0000000000554000-memory.dmp	purplefox_rootkit
behavioral1/memory/2372-38-0x0000000000400000-0x0000000000554000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/2308-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2372-21-0x0000000000400000-0x0000000000554000-memory.dmp	family_gh0strat
behavioral1/memory/2788-28-0x0000000000400000-0x0000000000554000-memory.dmp	family_gh0strat
behavioral1/memory/2788-20-0x0000000001230000-0x0000000001384000-memory.dmp	family_gh0strat
behavioral1/memory/2308-18-0x0000000000400000-0x0000000000554000-memory.dmp	family_gh0strat
behavioral1/memory/2372-38-0x0000000000400000-0x0000000000554000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
2800	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2788	sainbox.exe
2372	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2788	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2800	cmd.exe
2988	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2988	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2372	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2308	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe
Token: SeLoadDriverPrivilege	2372	sainbox.exe
Token: 33	2372	sainbox.exe
Token: SeIncBasePriorityPrivilege	2372	sainbox.exe
Token: 33	2372	sainbox.exe
Token: SeIncBasePriorityPrivilege	2372	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2800	2308	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe	32
PID 2308 wrote to memory of 2800	2308	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe	32
PID 2308 wrote to memory of 2800	2308	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe	32
PID 2308 wrote to memory of 2800	2308	428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe	32
PID 2788 wrote to memory of 2372	2788	sainbox.exe	34
PID 2788 wrote to memory of 2372	2788	sainbox.exe	34
PID 2788 wrote to memory of 2372	2788	sainbox.exe	34
PID 2788 wrote to memory of 2372	2788	sainbox.exe	34
PID 2800 wrote to memory of 2988	2800	cmd.exe	35
PID 2800 wrote to memory of 2988	2800	cmd.exe	35
PID 2800 wrote to memory of 2988	2800	cmd.exe	35
PID 2800 wrote to memory of 2988	2800	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe
"C:\Users\Admin\AppData\Local\Temp\428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2308
- 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\428350~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2988

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Windows\SysWOW64\sainbox.exe
  C:\Windows\SysWOW64\sainbox.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2372

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\sainbox.exe

Filesize
1.3MB

MD5
5bc273be67f7e47c94bdc60adc3ef45b

SHA1
73b58d4b0d68439c5da50346531c762cb6f3d8ae

SHA256
428350caebe02cba877c7ecfb9d197f387b2fc04cc1024932eae6f299c74c0d5

SHA512
1d2229458e748fcd62ac7042f35c73e8be8a8e581bdad01e9ebd7e6f39cd6c28abf1410619b82dc9cad3ac9a69188cd03fa9f426eb2acda9f44a332e3de2fed9

Download Submit
memory/2308-0-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2308-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2308-18-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2372-21-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2372-38-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2788-28-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2788-20-0x0000000001230000-0x0000000001384000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads