gh0strat | 2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660

General

Target

2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe
Size

1.3MB
MD5

1baff9d4ae43f5ca5d57eb846e0314f3
SHA1

7f3b8acdd911ec1d08072ea61ef7e24d7c2c24dd
SHA256

2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660
SHA512

5137f24a854064a18382da65737a497dac870cf40399e3deb6857c62b2c744d15231cd003bea6a2a43a8995e346beaa1d93d3369dc20a89374381edd78da23cb
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNX:QHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1796-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/1864-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1796-19-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/1864-0-0x0000000010000000-0x000000001019F000-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
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	Abcst.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"	Abcst.exe

Deletes itself 1 IoCs

pid	Process
2444	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2272	Abcst.exe
1796	Abcst.exe

Loads dropped DLL 1 IoCs

pid	Process
2272	Abcst.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	Abcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Abcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.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
1940	PING.EXE
2444	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1940	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1796	Abcst.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1864	2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe
Token: SeLoadDriverPrivilege	1796	Abcst.exe
Token: 33	1796	Abcst.exe
Token: SeIncBasePriorityPrivilege	1796	Abcst.exe
Token: 33	1796	Abcst.exe
Token: SeIncBasePriorityPrivilege	1796	Abcst.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2444	1864	2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe	31
PID 1864 wrote to memory of 2444	1864	2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe	31
PID 1864 wrote to memory of 2444	1864	2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe	31
PID 1864 wrote to memory of 2444	1864	2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe	31
PID 2272 wrote to memory of 1796	2272	Abcst.exe	33
PID 2272 wrote to memory of 1796	2272	Abcst.exe	33
PID 2272 wrote to memory of 1796	2272	Abcst.exe	33
PID 2272 wrote to memory of 1796	2272	Abcst.exe	33
PID 2444 wrote to memory of 1940	2444	cmd.exe	34
PID 2444 wrote to memory of 1940	2444	cmd.exe	34
PID 2444 wrote to memory of 1940	2444	cmd.exe	34
PID 2444 wrote to memory of 1940	2444	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe
"C:\Users\Admin\AppData\Local\Temp\2e87b4405288b43eb209d9141da10244decd3af869e416f571ec0fb7f2b02660.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864
- 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\2E87B4~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2444
- - 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:1940

C:\ProgramData\Application Data\DRM\Abcst.exe
"C:\ProgramData\Application Data\DRM\Abcst.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\ProgramData\Application Data\DRM\Abcst.exe
  "C:\ProgramData\Application Data\DRM\Abcst.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:1796

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

memory/1796-19-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1864-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads