gh0strat | cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841

General

Target

cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
Size

1.3MB
MD5

cb709753702fb448c25bc16703c48850
SHA1

55279d948a76e7f4de7bc7c55a4cc9b919e242e3
SHA256

cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841
SHA512

b7b3fdbce2409d6d8406a18e406371210538b95e855102650aae98ea3714364ad31edaa70730f548da709062ef47b6b16520642fdbb2aa61fa58c9b867bb6b8e
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNY: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/180-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1764-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4088-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/180-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1764-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4088-17-0x0000000010000000-0x000000001019F000-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	Phxph.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"	Phxph.exe

Executes dropped EXE 2 IoCs

pid	Process
1764	Phxph.exe
4088	Phxph.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Phxph.exe	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
File opened for modification	C:\Windows\SysWOW64\Phxph.exe	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.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	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Phxph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Phxph.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
1004	cmd.exe
3224	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	Phxph.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Phxph.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Phxph.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3224	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4088	Phxph.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	180	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
Token: SeLoadDriverPrivilege	4088	Phxph.exe
Token: 33	4088	Phxph.exe
Token: SeIncBasePriorityPrivilege	4088	Phxph.exe
Token: 33	4088	Phxph.exe
Token: SeIncBasePriorityPrivilege	4088	Phxph.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 180 wrote to memory of 1004	180	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe	83
PID 180 wrote to memory of 1004	180	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe	83
PID 180 wrote to memory of 1004	180	cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe	83
PID 1764 wrote to memory of 4088	1764	Phxph.exe	85
PID 1764 wrote to memory of 4088	1764	Phxph.exe	85
PID 1764 wrote to memory of 4088	1764	Phxph.exe	85
PID 1004 wrote to memory of 3224	1004	cmd.exe	86
PID 1004 wrote to memory of 3224	1004	cmd.exe	86
PID 1004 wrote to memory of 3224	1004	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe
"C:\Users\Admin\AppData\Local\Temp\cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:180
- 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\CB140D~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1004
- - 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:3224

C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Windows\SysWOW64\Phxph.exe
  C:\Windows\SysWOW64\Phxph.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:4088

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\Phxph.exe

Filesize
1.3MB

MD5
cb709753702fb448c25bc16703c48850

SHA1
55279d948a76e7f4de7bc7c55a4cc9b919e242e3

SHA256
cb140d439d38d49e058008669d410e6e2ee62d7135d3c55385ed0c09956ef841

SHA512
b7b3fdbce2409d6d8406a18e406371210538b95e855102650aae98ea3714364ad31edaa70730f548da709062ef47b6b16520642fdbb2aa61fa58c9b867bb6b8e

Download Submit
memory/180-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1764-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4088-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads