gh0strat | 7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87

General

Target

7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe
Size

1.3MB
MD5

90575baa422d4b50ebe647830929d185
SHA1

8b38376ec676d5ccd551940234fd01f8298f9693
SHA256

7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87
SHA512

7fadd0495bac601f24401775b3c7f7855013eff036b3dfb8b03f7888e986ea99d6827a3bc9b8db0a7f2ee0cbe62eea11161cc72a6996d3601d8b4ba5b3d637bb
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/2176-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2592-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2176-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2592-18-0x0000000010000000-0x000000001019F000-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	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
2356	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2476	sainbox.exe
2592	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2476	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.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	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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
2356	cmd.exe
2900	PING.EXE

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	sainbox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2900	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2592	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2176	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe
Token: SeLoadDriverPrivilege	2592	sainbox.exe
Token: 33	2592	sainbox.exe
Token: SeIncBasePriorityPrivilege	2592	sainbox.exe
Token: 33	2592	sainbox.exe
Token: SeIncBasePriorityPrivilege	2592	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2356	2176	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe	31
PID 2176 wrote to memory of 2356	2176	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe	31
PID 2176 wrote to memory of 2356	2176	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe	31
PID 2176 wrote to memory of 2356	2176	7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe	31
PID 2476 wrote to memory of 2592	2476	sainbox.exe	32
PID 2476 wrote to memory of 2592	2476	sainbox.exe	32
PID 2476 wrote to memory of 2592	2476	sainbox.exe	32
PID 2476 wrote to memory of 2592	2476	sainbox.exe	32
PID 2356 wrote to memory of 2900	2356	cmd.exe	34
PID 2356 wrote to memory of 2900	2356	cmd.exe	34
PID 2356 wrote to memory of 2900	2356	cmd.exe	34
PID 2356 wrote to memory of 2900	2356	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe
"C:\Users\Admin\AppData\Local\Temp\7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176
- 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\7A7A88~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2356
- - 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:2900

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:2476
- 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
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2592

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\sainbox.exe

Filesize
1.3MB

MD5
90575baa422d4b50ebe647830929d185

SHA1
8b38376ec676d5ccd551940234fd01f8298f9693

SHA256
7a7a88f9411aa000be6795522eb4aa8df15a1d45a2dc2a904c2e3aea96981b87

SHA512
7fadd0495bac601f24401775b3c7f7855013eff036b3dfb8b03f7888e986ea99d6827a3bc9b8db0a7f2ee0cbe62eea11161cc72a6996d3601d8b4ba5b3d637bb

Download Submit
memory/2176-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2592-18-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads