gh0strat | 8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 07:20

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General

Target

8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe
Size

491KB
MD5

57a4c7d812a2602d5581344ed3607ccf
SHA1

b6fa263a2e24574c33b6ce664b689834e545b5da
SHA256

8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593
SHA512

829dc35f6e5c32a83b01d1dcb76a4f2086fdc30dc33ace3cccee4e5aef4a3cf307aab0731bb62a93807505674b6e15d26d6a4dedf317a63071c1de1d11be2f50
SSDEEP

6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2Rm6lZv:oDR+u8pfjYMMWNvdhUSByFPzAv

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
behavioral2/memory/4928-2-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4928-5-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4928-3-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4144-13-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4144-14-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4144-16-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4928-21-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/4144-26-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/2708-25-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/2708-28-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral2/memory/2708-31-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/4928-2-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4928-5-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4928-3-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4144-13-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4144-14-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4144-16-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4928-21-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/4144-26-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/2708-25-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/2708-28-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral2/memory/2708-31-0x0000000010000000-0x00000000101D0000-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
4144	Skcsk.exe
2708	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)	\??\Q:	Skcsk.exe
File opened (read-only)	\??\W:	Skcsk.exe
File opened (read-only)	\??\E:	Skcsk.exe
File opened (read-only)	\??\K:	Skcsk.exe
File opened (read-only)	\??\N:	Skcsk.exe
File opened (read-only)	\??\T:	Skcsk.exe
File opened (read-only)	\??\U:	Skcsk.exe
File opened (read-only)	\??\Z:	Skcsk.exe
File opened (read-only)	\??\B:	Skcsk.exe
File opened (read-only)	\??\L:	Skcsk.exe
File opened (read-only)	\??\M:	Skcsk.exe
File opened (read-only)	\??\J:	Skcsk.exe
File opened (read-only)	\??\O:	Skcsk.exe
File opened (read-only)	\??\S:	Skcsk.exe
File opened (read-only)	\??\X:	Skcsk.exe
File opened (read-only)	\??\G:	Skcsk.exe
File opened (read-only)	\??\H:	Skcsk.exe
File opened (read-only)	\??\I:	Skcsk.exe
File opened (read-only)	\??\Y:	Skcsk.exe
File opened (read-only)	\??\P:	Skcsk.exe
File opened (read-only)	\??\R:	Skcsk.exe
File opened (read-only)	\??\V:	Skcsk.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4928-2-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4928-5-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4928-0-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4928-3-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4144-13-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4144-14-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4144-16-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4144-11-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4928-21-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/4144-26-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/2708-25-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/2708-28-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral2/memory/2708-31-0x0000000010000000-0x00000000101D0000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Skcsk.exe	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe
File opened for modification	C:\Program Files\Skcsk.exe	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.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	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.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
3460	cmd.exe
712	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	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Skcsk.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
712	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe
2708	Skcsk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4928	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 3460	4928	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe	86
PID 4928 wrote to memory of 3460	4928	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe	86
PID 4928 wrote to memory of 3460	4928	8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe	86
PID 4144 wrote to memory of 2708	4144	Skcsk.exe	87
PID 4144 wrote to memory of 2708	4144	Skcsk.exe	87
PID 4144 wrote to memory of 2708	4144	Skcsk.exe	87
PID 3460 wrote to memory of 712	3460	cmd.exe	89
PID 3460 wrote to memory of 712	3460	cmd.exe	89
PID 3460 wrote to memory of 712	3460	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe
"C:\Users\Admin\AppData\Local\Temp\8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4928
- 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\8D24CC~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3460
- - 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:712

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:4144
- 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:2708

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:\Program Files\Skcsk.exe

Filesize
491KB

MD5
57a4c7d812a2602d5581344ed3607ccf

SHA1
b6fa263a2e24574c33b6ce664b689834e545b5da

SHA256
8d24cc3783abd1e6878595186255c679af143e3e096380e18d3f9a4d543d7593

SHA512
829dc35f6e5c32a83b01d1dcb76a4f2086fdc30dc33ace3cccee4e5aef4a3cf307aab0731bb62a93807505674b6e15d26d6a4dedf317a63071c1de1d11be2f50

Download Submit
memory/2708-31-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2708-28-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2708-25-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4144-26-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4144-13-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4144-14-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4144-16-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4144-11-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4928-3-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4928-21-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4928-2-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4928-0-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/4928-5-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download