gh0strat | 0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404

General

Target

0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe
Size

1.3MB
MD5

12e2849ac8769fe6fc860ae4277c4103
SHA1

ee683fb75adb8e51b9e087f62deac787fe4dfdcf
SHA256

0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404
SHA512

da55b60d87df24319c7ce5eba5c9cb3686c88ebdc467fdc42e635658a0be0ca38db7fc51c92c501784a28cd5ab664d90b3b6319df22ddc44d36e8baaffcceede
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNS:QHPkVOBTK

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/4656-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2920-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4656-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2920-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3596-17-0x0000000010000000-0x000000001019F000-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	Vnfvn.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"	Vnfvn.exe

Executes dropped EXE 2 IoCs

pid	Process
2920	Vnfvn.exe
3596	Vnfvn.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Vnfvn.exe	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe
File opened for modification	C:\Windows\SysWOW64\Vnfvn.exe	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.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	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vnfvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vnfvn.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
3508	cmd.exe
836	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	Vnfvn.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Vnfvn.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Vnfvn.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
836	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3596	Vnfvn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4656	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe
Token: SeLoadDriverPrivilege	3596	Vnfvn.exe
Token: 33	3596	Vnfvn.exe
Token: SeIncBasePriorityPrivilege	3596	Vnfvn.exe
Token: 33	3596	Vnfvn.exe
Token: SeIncBasePriorityPrivilege	3596	Vnfvn.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 3508	4656	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe	85
PID 4656 wrote to memory of 3508	4656	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe	85
PID 4656 wrote to memory of 3508	4656	0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe	85
PID 2920 wrote to memory of 3596	2920	Vnfvn.exe	86
PID 2920 wrote to memory of 3596	2920	Vnfvn.exe	86
PID 2920 wrote to memory of 3596	2920	Vnfvn.exe	86
PID 3508 wrote to memory of 836	3508	cmd.exe	89
PID 3508 wrote to memory of 836	3508	cmd.exe	89
PID 3508 wrote to memory of 836	3508	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe
"C:\Users\Admin\AppData\Local\Temp\0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4656
- 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\0CB240~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3508
- - 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:836

C:\Windows\SysWOW64\Vnfvn.exe
C:\Windows\SysWOW64\Vnfvn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\Vnfvn.exe
  C:\Windows\SysWOW64\Vnfvn.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:3596

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\Vnfvn.exe

Filesize
1.3MB

MD5
12e2849ac8769fe6fc860ae4277c4103

SHA1
ee683fb75adb8e51b9e087f62deac787fe4dfdcf

SHA256
0cb2406811d1fadd0e894d57e3335523345173b48dd7f4348b2e9096bb291404

SHA512
da55b60d87df24319c7ce5eba5c9cb3686c88ebdc467fdc42e635658a0be0ca38db7fc51c92c501784a28cd5ab664d90b3b6319df22ddc44d36e8baaffcceede

Download Submit
memory/2920-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3596-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4656-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads