gh0strat | dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4

Analysis

max time kernel
128s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
31/03/2025, 21:14

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General

Target

dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe
Size

491KB
MD5

d00f10af281154b343d93b10f0fc8345
SHA1

ee10283480555ebc5516f6e3f49b4e9377822ae8
SHA256

dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4
SHA512

99fd62b175105da52a2b0ebb951f4123fdf2db9be12c549408d50a54fb93e6f7ac057f50f9eb3b13d59e61673581323c3182402acbc0f1f16b48246a86b4baee
SSDEEP

6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2R/6lZv:oDR+u8pfjYMMWNvdhUSByFPzpv

Score

10^/10

gh0strat purplefox discovery rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 11 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2848-2-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-3-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-5-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-6-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2756-17-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/3304-24-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/3304-25-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2756-26-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2756-15-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2756-14-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/3304-30-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral1/memory/2848-2-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2848-3-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2848-5-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2848-6-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2756-17-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/3304-24-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/3304-25-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2756-26-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2756-15-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2756-14-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/3304-30-0x0000000010000000-0x00000000101D0000-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

Executes dropped EXE 2 IoCs

pid	Process
2756	Skcsk.exe
3304	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)	\??\K:	Skcsk.exe
File opened (read-only)	\??\L:	Skcsk.exe
File opened (read-only)	\??\R:	Skcsk.exe
File opened (read-only)	\??\S:	Skcsk.exe
File opened (read-only)	\??\T:	Skcsk.exe
File opened (read-only)	\??\H:	Skcsk.exe
File opened (read-only)	\??\I:	Skcsk.exe
File opened (read-only)	\??\M:	Skcsk.exe
File opened (read-only)	\??\U:	Skcsk.exe
File opened (read-only)	\??\Y:	Skcsk.exe
File opened (read-only)	\??\Z:	Skcsk.exe
File opened (read-only)	\??\G:	Skcsk.exe
File opened (read-only)	\??\N:	Skcsk.exe
File opened (read-only)	\??\O:	Skcsk.exe
File opened (read-only)	\??\Q:	Skcsk.exe
File opened (read-only)	\??\W:	Skcsk.exe
File opened (read-only)	\??\P:	Skcsk.exe
File opened (read-only)	\??\V:	Skcsk.exe
File opened (read-only)	\??\X:	Skcsk.exe
File opened (read-only)	\??\B:	Skcsk.exe
File opened (read-only)	\??\E:	Skcsk.exe
File opened (read-only)	\??\J:	Skcsk.exe

UPX packed file 13 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2848-2-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2848-3-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2848-5-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2848-0-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2848-6-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2756-11-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2756-17-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/3304-24-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/3304-25-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2756-26-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2756-15-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2756-14-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/3304-30-0x0000000010000000-0x00000000101D0000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Skcsk.exe	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe
File opened for modification	C:\Program Files\Skcsk.exe	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.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	Skcsk.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	Skcsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.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
3244	cmd.exe
4068	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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Skcsk.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Skcsk.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Skcsk.exe
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	Skcsk.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	Skcsk.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4068	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe
3304	Skcsk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2848	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 3244	2848	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe	88
PID 2848 wrote to memory of 3244	2848	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe	88
PID 2848 wrote to memory of 3244	2848	dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe	88
PID 2756 wrote to memory of 3304	2756	Skcsk.exe	89
PID 2756 wrote to memory of 3304	2756	Skcsk.exe	89
PID 2756 wrote to memory of 3304	2756	Skcsk.exe	89
PID 3244 wrote to memory of 4068	3244	cmd.exe	91
PID 3244 wrote to memory of 4068	3244	cmd.exe	91
PID 3244 wrote to memory of 4068	3244	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe
"C:\Users\Admin\AppData\Local\Temp\dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2848
- 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\DD258C~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3244
- - 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:4068

C:\Program Files\Skcsk.exe
"C:\\Program Files\\Skcsk.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Program Files\Skcsk.exe
  "C:\Program Files\Skcsk.exe" -acsi
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  PID:3304

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

Replay Monitor

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Downloads

C:\Program Files\Skcsk.exe

Filesize
491KB

MD5
d00f10af281154b343d93b10f0fc8345

SHA1
ee10283480555ebc5516f6e3f49b4e9377822ae8

SHA256
dd258c850e41bb8df0238da0e787151effe0fd90562df933981fb54cbee7e8f4

SHA512
99fd62b175105da52a2b0ebb951f4123fdf2db9be12c549408d50a54fb93e6f7ac057f50f9eb3b13d59e61673581323c3182402acbc0f1f16b48246a86b4baee

Download Submit
memory/2756-11-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2756-14-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2756-15-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2756-26-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2756-17-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2848-0-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2848-6-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2848-2-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2848-5-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2848-3-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/3304-24-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/3304-25-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/3304-30-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download