gh0strat | 0c56b0c9bc116353a25ab0c22bcdc043ba93024e572431d920fa34ec3c4e5209

General

Target

0c56b0c9bc116353a25ab0c22bcdc043ba93024e572431d920fa34ec3c4e5209.dll
Size

537KB
MD5

ada42bc98a05a0ffe6bc97cedc50197c
SHA1

3d1209bcddf2787e29d1fd354abfcbaf4ffeefc7
SHA256

0c56b0c9bc116353a25ab0c22bcdc043ba93024e572431d920fa34ec3c4e5209
SHA512

aa9619c23c1afe56a824fa980d6bf61ffb2bd1d962b6551a1569a79c1990a316df93af76700dbbcc37259ec8caeaa6f5309b19a6c32c47992efdd39f619b647c
SSDEEP

12288:8IHDE4QGEc9C6CBLKYOfH+OkfGhzlRYO0tHs3jiojajWv+Mb5:JjE4QGF46KLHOfeO+qctH+jdjPvRb5

Score

10^/10

gh0strat purplefox rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4684-1-0x0000000002910000-0x0000000002AAD000-memory.dmp	purplefox_rootkit
behavioral2/memory/4684-16-0x0000000010000000-0x0000000010182000-memory.dmp	purplefox_rootkit
behavioral2/memory/4684-19-0x0000000010000000-0x0000000010182000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4684-1-0x0000000002910000-0x0000000002AAD000-memory.dmp	family_gh0strat
behavioral2/memory/4684-16-0x0000000010000000-0x0000000010182000-memory.dmp	family_gh0strat
behavioral2/memory/4684-19-0x0000000010000000-0x0000000010182000-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Control Panel\International\Geo\Nation	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
5036	Skcja.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4684-0-0x0000000010000000-0x0000000010182000-memory.dmp	upx
behavioral2/memory/4684-16-0x0000000010000000-0x0000000010182000-memory.dmp	upx
behavioral2/memory/4684-19-0x0000000010000000-0x0000000010182000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\rundll32.exe	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4452	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4684	rundll32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 568 wrote to memory of 4684	568	rundll32.exe	88
PID 568 wrote to memory of 4684	568	rundll32.exe	88
PID 568 wrote to memory of 4684	568	rundll32.exe	88
PID 4684 wrote to memory of 5036	4684	rundll32.exe	92
PID 4684 wrote to memory of 5036	4684	rundll32.exe	92
PID 4684 wrote to memory of 5036	4684	rundll32.exe	92
PID 4684 wrote to memory of 1496	4684	rundll32.exe	97
PID 4684 wrote to memory of 1496	4684	rundll32.exe	97
PID 4684 wrote to memory of 1496	4684	rundll32.exe	97
PID 1496 wrote to memory of 4452	1496	cmd.exe	99
PID 1496 wrote to memory of 4452	1496	cmd.exe	99
PID 1496 wrote to memory of 4452	1496	cmd.exe	99

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0c56b0c9bc116353a25ab0c22bcdc043ba93024e572431d920fa34ec3c4e5209.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:568
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0c56b0c9bc116353a25ab0c22bcdc043ba93024e572431d920fa34ec3c4e5209.dll,#1
  2⤵
  - Checks computer location settings
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4684
- - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Skcja.exe
    "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Skcja.exe"
    3⤵
    - Executes dropped EXE
    PID:5036
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Windows\SysWOW64\rundll32.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1496
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:4452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Skcja.exe

Filesize
500.1MB

MD5
56eb0e5a97d3389ca6800487c5cb8e44

SHA1
7cf6a3d54eef86159fc79d5d12092aae3653468d

SHA256
38f32574bd6d0f371e18ce01cef91949d1394605af35074c2097015a40d4c158

SHA512
f476745a2555372d6c906e5b93046037365c8bd48c341edc73e39070484de3aa931465ce12f2d978bad3df362a6acff79b1919c7e913303eca3cb620e8ada43b

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Skcja.exe

Filesize
500.1MB

MD5
56eb0e5a97d3389ca6800487c5cb8e44

SHA1
7cf6a3d54eef86159fc79d5d12092aae3653468d

SHA256
38f32574bd6d0f371e18ce01cef91949d1394605af35074c2097015a40d4c158

SHA512
f476745a2555372d6c906e5b93046037365c8bd48c341edc73e39070484de3aa931465ce12f2d978bad3df362a6acff79b1919c7e913303eca3cb620e8ada43b

Download Submit
memory/4684-0-0x0000000010000000-0x0000000010182000-memory.dmp

Filesize
1.5MB

Download
memory/4684-1-0x0000000002910000-0x0000000002AAD000-memory.dmp

Filesize
1.6MB

Download
memory/4684-16-0x0000000010000000-0x0000000010182000-memory.dmp

Filesize
1.5MB

Download
memory/4684-19-0x0000000010000000-0x0000000010182000-memory.dmp

Filesize
1.5MB

Download

Analysis

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