gh0strat | e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2

Analysis

max time kernel
120s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2024 07:29

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General

Target

e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe
Size

1.4MB
MD5

e40eae626eea7da513b5e638048df428
SHA1

2db7528e5dffb3bc7e7c7ae0afb064c53dbe3e73
SHA256

e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2
SHA512

2e8aa6d2c56f67592facab70c752f28ea16de271572031b6c9fe7266b7b96463e81bf057fcdf19324c938ae44f786951bf1181ed011efdb7face9bc8388f99cd
SSDEEP

24576:F39WkOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:59qHPkVOBTK

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/4368-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4940-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3900-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4368-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4940-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3900-17-0x0000000010000000-0x000000001019F000-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
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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	Jbrja.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"	Jbrja.exe

Executes dropped EXE 2 IoCs

pid	Process
4940	Jbrja.exe
3900	Jbrja.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)	\??\P:	Jbrja.exe
File opened (read-only)	\??\R:	Jbrja.exe
File opened (read-only)	\??\V:	Jbrja.exe
File opened (read-only)	\??\Y:	Jbrja.exe
File opened (read-only)	\??\B:	Jbrja.exe
File opened (read-only)	\??\J:	Jbrja.exe
File opened (read-only)	\??\M:	Jbrja.exe
File opened (read-only)	\??\W:	Jbrja.exe
File opened (read-only)	\??\Z:	Jbrja.exe
File opened (read-only)	\??\K:	Jbrja.exe
File opened (read-only)	\??\N:	Jbrja.exe
File opened (read-only)	\??\O:	Jbrja.exe
File opened (read-only)	\??\U:	Jbrja.exe
File opened (read-only)	\??\H:	Jbrja.exe
File opened (read-only)	\??\Q:	Jbrja.exe
File opened (read-only)	\??\T:	Jbrja.exe
File opened (read-only)	\??\L:	Jbrja.exe
File opened (read-only)	\??\S:	Jbrja.exe
File opened (read-only)	\??\X:	Jbrja.exe
File opened (read-only)	\??\E:	Jbrja.exe
File opened (read-only)	\??\G:	Jbrja.exe
File opened (read-only)	\??\I:	Jbrja.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Jbrja.exe	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe
File opened for modification	C:\Windows\SysWOW64\Jbrja.exe	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.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	Jbrja.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	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Jbrja.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
3496	cmd.exe
888	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	Jbrja.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Jbrja.exe

Modifies data under HKEY_USERS 5 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
888	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe
3900	Jbrja.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3900	Jbrja.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4368	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe
Token: SeLoadDriverPrivilege	3900	Jbrja.exe
Token: 33	3900	Jbrja.exe
Token: SeIncBasePriorityPrivilege	3900	Jbrja.exe
Token: 33	3900	Jbrja.exe
Token: SeIncBasePriorityPrivilege	3900	Jbrja.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 3496	4368	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe	86
PID 4368 wrote to memory of 3496	4368	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe	86
PID 4368 wrote to memory of 3496	4368	e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe	86
PID 4940 wrote to memory of 3900	4940	Jbrja.exe	88
PID 4940 wrote to memory of 3900	4940	Jbrja.exe	88
PID 4940 wrote to memory of 3900	4940	Jbrja.exe	88
PID 3496 wrote to memory of 888	3496	cmd.exe	89
PID 3496 wrote to memory of 888	3496	cmd.exe	89
PID 3496 wrote to memory of 888	3496	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe
"C:\Users\Admin\AppData\Local\Temp\e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368
- 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\E79C84~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3496
- - 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:888

C:\Windows\SysWOW64\Jbrja.exe
C:\Windows\SysWOW64\Jbrja.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Windows\SysWOW64\Jbrja.exe
  C:\Windows\SysWOW64\Jbrja.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - 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
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:3900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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\Jbrja.exe

Filesize
1.4MB

MD5
e40eae626eea7da513b5e638048df428

SHA1
2db7528e5dffb3bc7e7c7ae0afb064c53dbe3e73

SHA256
e79c84c16a80fb2466c89f3ced55bf73d973f26f1aa31db51cb94bc7df4e01a2

SHA512
2e8aa6d2c56f67592facab70c752f28ea16de271572031b6c9fe7266b7b96463e81bf057fcdf19324c938ae44f786951bf1181ed011efdb7face9bc8388f99cd

Download Submit
memory/3900-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4368-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4940-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download