gh0strat | 6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c

General

Target

6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe
Size

1.3MB
MD5

7d1671f35146ae8ded5fe05914bc50c5
SHA1

45a6b522f07767b11f2e88c2c9310d8b0ea66415
SHA256

6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c
SHA512

cb0c698543bcfd77e57a5a8d8665fdaf9afc1bb74097c690737c2209378bb1b4cc817c784d812f1ddd34b6c551a9fcb53598e7ad3b67d8df72dff657bf600e48
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN+: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
behavioral2/memory/4468-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4964-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/4468-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4964-10-0x0000000010000000-0x000000001019F000-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

Executes dropped EXE 2 IoCs

pid	Process
4964	sainbox.exe
1936	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.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	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	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.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
3532	cmd.exe
532	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
532	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1936	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4468	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe
Token: SeLoadDriverPrivilege	1936	sainbox.exe
Token: 33	1936	sainbox.exe
Token: SeIncBasePriorityPrivilege	1936	sainbox.exe
Token: 33	1936	sainbox.exe
Token: SeIncBasePriorityPrivilege	1936	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 3532	4468	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe	84
PID 4468 wrote to memory of 3532	4468	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe	84
PID 4468 wrote to memory of 3532	4468	6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe	84
PID 4964 wrote to memory of 1936	4964	sainbox.exe	85
PID 4964 wrote to memory of 1936	4964	sainbox.exe	85
PID 4964 wrote to memory of 1936	4964	sainbox.exe	85
PID 3532 wrote to memory of 532	3532	cmd.exe	87
PID 3532 wrote to memory of 532	3532	cmd.exe	87
PID 3532 wrote to memory of 532	3532	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe
"C:\Users\Admin\AppData\Local\Temp\6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4468
- 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\6FB121~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3532
- - 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:532

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:4964
- 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:1936

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
7d1671f35146ae8ded5fe05914bc50c5

SHA1
45a6b522f07767b11f2e88c2c9310d8b0ea66415

SHA256
6fb121cb8ca2e5c5100b53f690daf368c71edc03f1da897e3e3ef275a7dd4c2c

SHA512
cb0c698543bcfd77e57a5a8d8665fdaf9afc1bb74097c690737c2209378bb1b4cc817c784d812f1ddd34b6c551a9fcb53598e7ad3b67d8df72dff657bf600e48

Download Submit
memory/4468-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4964-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads