gh0strat | f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47

General

Target

f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe
Size

1.3MB
MD5

5c681bdf4e64797a5caa4e1e8b0ae3af
SHA1

3bb0eb99873cf772f8400e9844ad1b3402f283fa
SHA256

f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47
SHA512

bc9614b6f3ba0f625ddd6dd332c848ff4512b53fa777f0d5b4dfee01335c6043f0bbbd4063b79e8050ef581eeb2a65199697af5de22dc0242a650cb5622a1f9a
SSDEEP

24576:5OyHutimZ9VSly2hVvHW6qMnSbTBBhBMNLI:0HPkVOBTKE

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4532-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3980-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4572-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4532-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3980-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4572-17-0x0000000010000000-0x000000001019F000-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	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

Executes dropped EXE 2 IoCs

pid	Process
3980	sainbox.exe
4572	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.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	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.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
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
4464	cmd.exe
4672	PING.EXE

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
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
4672	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4572	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4532	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe
Token: SeLoadDriverPrivilege	4572	sainbox.exe
Token: 33	4572	sainbox.exe
Token: SeIncBasePriorityPrivilege	4572	sainbox.exe
Token: 33	4572	sainbox.exe
Token: SeIncBasePriorityPrivilege	4572	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 4464	4532	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe	86
PID 4532 wrote to memory of 4464	4532	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe	86
PID 4532 wrote to memory of 4464	4532	f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe	86
PID 3980 wrote to memory of 4572	3980	sainbox.exe	88
PID 3980 wrote to memory of 4572	3980	sainbox.exe	88
PID 3980 wrote to memory of 4572	3980	sainbox.exe	88
PID 4464 wrote to memory of 4672	4464	cmd.exe	89
PID 4464 wrote to memory of 4672	4464	cmd.exe	89
PID 4464 wrote to memory of 4672	4464	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe
"C:\Users\Admin\AppData\Local\Temp\f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4532
- 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\F6A3D3~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4464
- - 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:4672

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980
- 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:4572

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
5c681bdf4e64797a5caa4e1e8b0ae3af

SHA1
3bb0eb99873cf772f8400e9844ad1b3402f283fa

SHA256
f6a3d3d966419478feb65f236c3be3f4590bb44a838c736b7fed186ed6f3ab47

SHA512
bc9614b6f3ba0f625ddd6dd332c848ff4512b53fa777f0d5b4dfee01335c6043f0bbbd4063b79e8050ef581eeb2a65199697af5de22dc0242a650cb5622a1f9a

Download Submit
memory/3980-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4532-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4572-17-0x0000000010000000-0x000000001019F000-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