gh0strat | 2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d

Analysis

max time kernel
147s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-10-2024 10:07

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General

Target

2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
Size

1.8MB
MD5

fa80f7584f46b97118f7398b6e36b9c8
SHA1

7661586fb8c492a5e40b79acc1f266e79b1d9bc2
SHA256

2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d
SHA512

946f2dba5e162e28e9b75e905978cb3f34437050b7a23f04165d2868a6770fbbb1a970b459d5f5ad95fe036134e50a6c8e9d45c6ec8e15c22b0eec61f31effd7
SSDEEP

49152:0f+RzhCfjKCYHxi29GkwlwklNuzu/hd8HP129I7:02NhCfeR1IFH0WhduWI7

Score

10^/10

gh0strat purplefox discovery rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/596-16689-0x0000000000400000-0x0000000000755000-memory.dmp	purplefox_rootkit
behavioral1/memory/11056-16691-0x0000000000400000-0x0000000000755000-memory.dmp	purplefox_rootkit
behavioral1/memory/3504-25407-0x0000000000400000-0x0000000000755000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/596-16689-0x0000000000400000-0x0000000000755000-memory.dmp	family_gh0strat
behavioral1/memory/11056-16691-0x0000000000400000-0x0000000000755000-memory.dmp	family_gh0strat
behavioral1/memory/3504-25407-0x0000000000400000-0x0000000000755000-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

Deletes itself 1 IoCs

pid	Process
3360	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
11056	Skcsk.exe
3504	Skcsk.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\I:	Skcsk.exe
File opened (read-only)	\??\L:	Skcsk.exe
File opened (read-only)	\??\R:	Skcsk.exe
File opened (read-only)	\??\V:	Skcsk.exe
File opened (read-only)	\??\E:	Skcsk.exe
File opened (read-only)	\??\H:	Skcsk.exe
File opened (read-only)	\??\S:	Skcsk.exe
File opened (read-only)	\??\X:	Skcsk.exe
File opened (read-only)	\??\Y:	Skcsk.exe
File opened (read-only)	\??\M:	Skcsk.exe
File opened (read-only)	\??\O:	Skcsk.exe
File opened (read-only)	\??\P:	Skcsk.exe
File opened (read-only)	\??\T:	Skcsk.exe
File opened (read-only)	\??\U:	Skcsk.exe
File opened (read-only)	\??\W:	Skcsk.exe
File opened (read-only)	\??\Z:	Skcsk.exe
File opened (read-only)	\??\B:	Skcsk.exe
File opened (read-only)	\??\G:	Skcsk.exe
File opened (read-only)	\??\J:	Skcsk.exe
File opened (read-only)	\??\K:	Skcsk.exe
File opened (read-only)	\??\N:	Skcsk.exe
File opened (read-only)	\??\Q:	Skcsk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Skcsk.exe	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
File opened for modification	C:\Windows\SysWOW64\Skcsk.exe	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 40 IoCs

pid	Process
596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
11056	Skcsk.exe
11056	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.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	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Skcsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Skcsk.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
3360	cmd.exe
13024	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Skcsk.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Skcsk.exe

Modifies data under HKEY_USERS 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Skcsk.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Skcsk.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	Skcsk.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	Skcsk.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Skcsk.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Skcsk.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
13024	PING.EXE

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe
3504	Skcsk.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
Token: 33	3504	Skcsk.exe
Token: SeIncBasePriorityPrivilege	3504	Skcsk.exe
Token: 33	3504	Skcsk.exe
Token: SeIncBasePriorityPrivilege	3504	Skcsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 596 wrote to memory of 3360	596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe	32
PID 596 wrote to memory of 3360	596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe	32
PID 596 wrote to memory of 3360	596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe	32
PID 596 wrote to memory of 3360	596	2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe	32
PID 11056 wrote to memory of 3504	11056	Skcsk.exe	33
PID 11056 wrote to memory of 3504	11056	Skcsk.exe	33
PID 11056 wrote to memory of 3504	11056	Skcsk.exe	33
PID 11056 wrote to memory of 3504	11056	Skcsk.exe	33
PID 3360 wrote to memory of 13024	3360	cmd.exe	35
PID 3360 wrote to memory of 13024	3360	cmd.exe	35
PID 3360 wrote to memory of 13024	3360	cmd.exe	35
PID 3360 wrote to memory of 13024	3360	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe
"C:\Users\Admin\AppData\Local\Temp\2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:596
- 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\2BE3F5~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3360
- - 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:13024

C:\Windows\SysWOW64\Skcsk.exe
C:\Windows\SysWOW64\Skcsk.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:11056
- C:\Windows\SysWOW64\Skcsk.exe
  C:\Windows\SysWOW64\Skcsk.exe -acsi
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Skcsk.exe

Filesize
1.8MB

MD5
fa80f7584f46b97118f7398b6e36b9c8

SHA1
7661586fb8c492a5e40b79acc1f266e79b1d9bc2

SHA256
2be3f58ae31984e9f369848507f70ce72e42cad24819eb985175483a2d64d97d

SHA512
946f2dba5e162e28e9b75e905978cb3f34437050b7a23f04165d2868a6770fbbb1a970b459d5f5ad95fe036134e50a6c8e9d45c6ec8e15c22b0eec61f31effd7

Download Submit
memory/596-536-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-1-0x0000000075550000-0x0000000075597000-memory.dmp

Filesize
284KB

Download
memory/596-504-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-562-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-506-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-508-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-534-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-512-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-514-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-516-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-518-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-520-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-522-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-524-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-526-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-528-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-530-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-538-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-510-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-503-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-532-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-540-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-542-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-544-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-546-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-548-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-550-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-560-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-558-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-556-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-554-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-552-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-564-0x00000000023F0000-0x0000000002501000-memory.dmp

Filesize
1.1MB

Download
memory/596-2239-0x0000000002140000-0x00000000022C1000-memory.dmp

Filesize
1.5MB

Download
memory/596-0-0x0000000000400000-0x0000000000755000-memory.dmp

Filesize
3.3MB

Download
memory/596-16689-0x0000000000400000-0x0000000000755000-memory.dmp

Filesize
3.3MB

Download
memory/3504-16693-0x0000000000400000-0x0000000000755000-memory.dmp

Filesize
3.3MB

Download
memory/3504-25407-0x0000000000400000-0x0000000000755000-memory.dmp

Filesize
3.3MB

Download
memory/11056-7989-0x0000000000400000-0x0000000000755000-memory.dmp

Filesize
3.3MB

Download
memory/11056-16691-0x0000000000400000-0x0000000000755000-memory.dmp

Filesize
3.3MB

Download