gh0strat | 61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc

General

Target

61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe
Size

1.3MB
MD5

7ed1269e64e1d1ad3a1ce5e02a313522
SHA1

2ee6d3eb5e25faa346c5cfddc97af7bde16a8075
SHA256

61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc
SHA512

8969f26a0edbddacedfa7f7ac4daf901650a78a27de157e2786c65e8ef260f0cab430ef4abe0e0d8de11040475a1af6eedccb6387bfec6a49f0915680f3f80cc
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNu:QHPkVOBTK

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1372-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3432-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3648-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1372-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3432-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3648-17-0x0000000010000000-0x000000001019F000-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
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	Aqiyq.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"	Aqiyq.exe

Executes dropped EXE 2 IoCs

pid	Process
3432	Aqiyq.exe
3648	Aqiyq.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Aqiyq.exe	61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe
File opened for modification	C:\Windows\SysWOW64\Aqiyq.exe	61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe

Modifies data under HKEY_USERS 3 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2252	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3648	Aqiyq.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1372	61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe
Token: SeLoadDriverPrivilege	3648	Aqiyq.exe
Token: 33	3648	Aqiyq.exe
Token: SeIncBasePriorityPrivilege	3648	Aqiyq.exe
Token: 33	3648	Aqiyq.exe
Token: SeIncBasePriorityPrivilege	3648	Aqiyq.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 468	1372	61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe	83
PID 1372 wrote to memory of 468	1372	61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe	83
PID 1372 wrote to memory of 468	1372	61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe	83
PID 3432 wrote to memory of 3648	3432	Aqiyq.exe	84
PID 3432 wrote to memory of 3648	3432	Aqiyq.exe	84
PID 3432 wrote to memory of 3648	3432	Aqiyq.exe	84
PID 468 wrote to memory of 2252	468	cmd.exe	86
PID 468 wrote to memory of 2252	468	cmd.exe	86
PID 468 wrote to memory of 2252	468	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe
"C:\Users\Admin\AppData\Local\Temp\61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372
- 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\61630C~1.EXE > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:468
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:2252

C:\Windows\SysWOW64\Aqiyq.exe
C:\Windows\SysWOW64\Aqiyq.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Windows\SysWOW64\Aqiyq.exe
  C:\Windows\SysWOW64\Aqiyq.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:3648

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

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Downloads

C:\Windows\SysWOW64\Aqiyq.exe

Filesize
1.3MB

MD5
7ed1269e64e1d1ad3a1ce5e02a313522

SHA1
2ee6d3eb5e25faa346c5cfddc97af7bde16a8075

SHA256
61630c4c53ea7fdaf818db5450f18cc43d0dbdcd99f5d79fd894291f7d3614dc

SHA512
8969f26a0edbddacedfa7f7ac4daf901650a78a27de157e2786c65e8ef260f0cab430ef4abe0e0d8de11040475a1af6eedccb6387bfec6a49f0915680f3f80cc

Download Submit
memory/1372-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3432-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3648-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads