gh0strat | 2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b

General

Target

2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe
Size

3.3MB
MD5

e8f447b4aaeea2c4652ced34cc3301ac
SHA1

0b11147051d255ac3b76ee11973b39712cedc41e
SHA256

2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b
SHA512

614d5b47800fe823d5b2a9b83cbf46b69700782516e356706f6b1f43425397b22ebdcf89ea0a196f57e739f1ff8e79d0b0de0289479d4ea509a46725d7b7c0e5
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN6I:QHPkVOBTKx

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/2124-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/876-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2124-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/876-19-0x0000000010000000-0x000000001019F000-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

Deletes itself 1 IoCs

pid	Process
1708	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2476	sainbox.exe
876	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	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.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	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.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
1708	cmd.exe
2888	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
2888	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
876	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2124	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe
Token: SeLoadDriverPrivilege	876	sainbox.exe
Token: 33	876	sainbox.exe
Token: SeIncBasePriorityPrivilege	876	sainbox.exe
Token: 33	876	sainbox.exe
Token: SeIncBasePriorityPrivilege	876	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 1708	2124	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe	31
PID 2124 wrote to memory of 1708	2124	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe	31
PID 2124 wrote to memory of 1708	2124	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe	31
PID 2124 wrote to memory of 1708	2124	2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe	31
PID 2476 wrote to memory of 876	2476	sainbox.exe	33
PID 2476 wrote to memory of 876	2476	sainbox.exe	33
PID 2476 wrote to memory of 876	2476	sainbox.exe	33
PID 2476 wrote to memory of 876	2476	sainbox.exe	33
PID 1708 wrote to memory of 2888	1708	cmd.exe	34
PID 1708 wrote to memory of 2888	1708	cmd.exe	34
PID 1708 wrote to memory of 2888	1708	cmd.exe	34
PID 1708 wrote to memory of 2888	1708	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe
"C:\Users\Admin\AppData\Local\Temp\2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2124
- 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\2B35D2~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1708
- - 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:2888

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:876

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
3.3MB

MD5
e8f447b4aaeea2c4652ced34cc3301ac

SHA1
0b11147051d255ac3b76ee11973b39712cedc41e

SHA256
2b35d2e6211afd980c78a979307c87b508d6e86b0352e1aa8d413458b40e2a0b

SHA512
614d5b47800fe823d5b2a9b83cbf46b69700782516e356706f6b1f43425397b22ebdcf89ea0a196f57e739f1ff8e79d0b0de0289479d4ea509a46725d7b7c0e5

Download Submit
memory/876-19-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2124-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads