gh0strat | 8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825

General

Target

8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe
Size

539KB
MD5

f2d86e6703e7706174e887936571d7d4
SHA1

1f2377bd479e7fe584cbab253b29b37d4f767b36
SHA256

8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825
SHA512

9d7bdf72a52c4041469c9380d9a7d8c29d21a05e64710547c2d542991a1356a7c10cc4a429d753e772b571fb884b5687b70b3eb94ee7ceb403df30f13f73341e
SSDEEP

12288:NhymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSAL:NUmwrl2Ao7sJNlM7ymsSA

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1996-0-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral1/memory/1996-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/1996-20-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral1/memory/3028-22-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-38-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/1996-0-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/1996-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/3028-10-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/1996-20-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/3028-22-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/2780-38-0x0000000000400000-0x0000000000547000-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	Wxypq.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"	Wxypq.exe

Deletes itself 1 IoCs

pid	Process
2756	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
3028	Wxypq.exe
2780	Wxypq.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	Wxypq.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1996-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/files/0x000d0000000122f3-9.dat	upx
behavioral1/memory/3028-10-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/1996-20-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/2780-21-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/3028-22-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/2780-38-0x0000000000400000-0x0000000000547000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\AppPatch\Wxypq.exe	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe
File created	C:\Program Files (x86)\AppPatch\Wxypq.exe	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Wxypq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Wxypq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Wxypq.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Wxypq.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2344	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2780	Wxypq.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1996	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe
Token: SeLoadDriverPrivilege	2780	Wxypq.exe
Token: 33	2780	Wxypq.exe
Token: SeIncBasePriorityPrivilege	2780	Wxypq.exe
Token: 33	2780	Wxypq.exe
Token: SeIncBasePriorityPrivilege	2780	Wxypq.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2780	3028	Wxypq.exe	30
PID 3028 wrote to memory of 2780	3028	Wxypq.exe	30
PID 3028 wrote to memory of 2780	3028	Wxypq.exe	30
PID 3028 wrote to memory of 2780	3028	Wxypq.exe	30
PID 1996 wrote to memory of 2756	1996	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe	29
PID 1996 wrote to memory of 2756	1996	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe	29
PID 1996 wrote to memory of 2756	1996	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe	29
PID 1996 wrote to memory of 2756	1996	8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe	29
PID 2756 wrote to memory of 2344	2756	cmd.exe	32
PID 2756 wrote to memory of 2344	2756	cmd.exe	32
PID 2756 wrote to memory of 2344	2756	cmd.exe	32
PID 2756 wrote to memory of 2344	2756	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe
"C:\Users\Admin\AppData\Local\Temp\8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- 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\8C3851~1.EXE > nul
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:2344

C:\Program Files (x86)\AppPatch\Wxypq.exe
"C:\Program Files (x86)\AppPatch\Wxypq.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Program Files (x86)\AppPatch\Wxypq.exe
  "C:\Program Files (x86)\AppPatch\Wxypq.exe" -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2780

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\AppPatch\Wxypq.exe

Filesize
539KB

MD5
f2d86e6703e7706174e887936571d7d4

SHA1
1f2377bd479e7fe584cbab253b29b37d4f767b36

SHA256
8c385106f2acdb5958abc3b808e540d162fe9c8f4a7d3c35f2f03bdde5c52825

SHA512
9d7bdf72a52c4041469c9380d9a7d8c29d21a05e64710547c2d542991a1356a7c10cc4a429d753e772b571fb884b5687b70b3eb94ee7ceb403df30f13f73341e

Download Submit
memory/1996-0-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/1996-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1996-20-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2780-21-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2780-38-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3028-10-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3028-22-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads