gh0strat | 03fb6bf898025901260dbc9809cb0d3e6e2bccfb5f51665def98cb937eec0a36

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
17/04/2026, 17:58

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General

Target
03fb6bf898025901260dbc9809cb0d3e6e2bccfb5f51665def98cb937eec0a36.dll
Size 1.5MB
Sample260417-wkhv3aex4k
SHA256 03fb6bf898025901260dbc9809cb0d3e6e2bccfb5f51665def98cb937eec0a36
MD5 50b8fe2d34b07797ce5b1f8e3d5209de
SHA1 f80d51708b1322f9ba1238f38f0ebe9a48195dee
SHA512 49bb1aff60d2f57f14b898f37e7579b39cfdd37ddeb55fe44602e1d73d939c684835eda3b4b668ad90c9ec7a3e195fdf35f380ebe1824ad68dcb0cebc77b87a9
SSDEEP 24576:7MfywgIt/65Fu99573/aiVIOYrFzpCM5hyv3m8AMtRyce0LCOK0B:l49rJ
TLSH
T13B755C83F2B64CE3CBD40034EC6AD2767B34791D93FB86737240DAD6B5A6690792035A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery gh0strat purplefox rat rootkit trojan upx

Malware Config

Signatures

Family: 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
Family: PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/5092-0-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/memory/5092-0-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5092-0-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2640	5092	WerFault.exe	78

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 5092	5052	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03fb6bf898025901260dbc9809cb0d3e6e2bccfb5f51665def98cb937eec0a36.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\03fb6bf898025901260dbc9809cb0d3e6e2bccfb5f51665def98cb937eec0a36.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5092
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 424
    3⤵
    - Program crash
    PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5092 -ip 5092
1⤵
PID:3772

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5092-0-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/5092-1-0x00000000015E0000-0x000000000165B000-memory.dmp