farfli | b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415

Analysis

max time kernel
148s
max time network
138s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/08/2026, 12:45

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General

Target
b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe
Size 198KB
Sample260813-py79jszend
SHA256 b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415
MD5 b90077963b7d8975527b329a1d06cee3
SHA1 37264bf5c63760b48da1fae301dfbf4a7e1ac08a
SHA512 e7d730a692701f69782ea87e66c483661d5f8f283dfaaac647bfa0f6612e46d03b8c482aef2b5d2b329e5a5193821dbf587d5410a359bd8be97c69321ddc99f7
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1DF141200DBA461E8D498607B0AC3B321FBF29ACDEB735BF152D6D13B9F51F162859890
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

107.163.241.193:6520
http://107.163.241.181:16300/
http://107.163.241.182:12354/login.php

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
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

Detects Farfli Backdoor 4 IoCs

resource	yara_rule
behavioral2/memory/4944-15-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/4944-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/4944-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/4944-21-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
5836	xsien.exe

Executes dropped EXE 2 IoCs

pid	Process
5836	xsien.exe
4944	hbmokkw.exe

Loads dropped DLL 1 IoCs

pid	Process
4944	hbmokkw.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\uqjvwkfm\\hbmokkw.exe \"c:\\Program Files\\uqjvwkfm\\hbmokkw.dll\",Compliance"	hbmokkw.exe

Enumerates connected drives 3 TTPs 23 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:	hbmokkw.exe
File opened (read-only)	\??\t:	hbmokkw.exe
File opened (read-only)	\??\z:	hbmokkw.exe
File opened (read-only)	\??\g:	hbmokkw.exe
File opened (read-only)	\??\m:	hbmokkw.exe
File opened (read-only)	\??\s:	hbmokkw.exe
File opened (read-only)	\??\v:	hbmokkw.exe
File opened (read-only)	\??\y:	hbmokkw.exe
File opened (read-only)	\??\q:	hbmokkw.exe
File opened (read-only)	\??\i:	hbmokkw.exe
File opened (read-only)	\??\n:	hbmokkw.exe
File opened (read-only)	\??\u:	hbmokkw.exe
File opened (read-only)	\??\x:	hbmokkw.exe
File opened (read-only)	\??\b:	hbmokkw.exe
File opened (read-only)	\??\j:	hbmokkw.exe
File opened (read-only)	\??\k:	hbmokkw.exe
File opened (read-only)	\??\r:	hbmokkw.exe
File opened (read-only)	\??\w:	hbmokkw.exe
File opened (read-only)	\??\a:	hbmokkw.exe
File opened (read-only)	\??\d:	hbmokkw.exe
File opened (read-only)	\??\h:	hbmokkw.exe
File opened (read-only)	\??\l:	hbmokkw.exe
File opened (read-only)	\??\o:	hbmokkw.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	hbmokkw.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\uqjvwkfm	xsien.exe
File created	\??\c:\Program Files\uqjvwkfm\hbmokkw.dll	xsien.exe
File created	\??\c:\Program Files\uqjvwkfm\hbmokkw.exe	xsien.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
5896	cmd.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	xsien.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hbmokkw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
5896	cmd.exe
784	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	hbmokkw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	hbmokkw.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
784	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4944	hbmokkw.exe
4944	hbmokkw.exe
4944	hbmokkw.exe
4944	hbmokkw.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	hbmokkw.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4416	b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe
5836	xsien.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 5896	4416	b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe	89
PID 5896 wrote to memory of 784	5896	cmd.exe	91
PID 5896 wrote to memory of 5836	5896	cmd.exe	92
PID 5836 wrote to memory of 4944	5836	xsien.exe	93

C:\Users\Admin\AppData\Local\Temp\b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe
"C:\Users\Admin\AppData\Local\Temp\b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xsien.exe "C:\Users\Admin\AppData\Local\Temp\b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5896
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:784
- - C:\Users\Admin\AppData\Local\Temp\xsien.exe
    C:\Users\Admin\AppData\Local\Temp\\xsien.exe "C:\Users\Admin\AppData\Local\Temp\b108e0b7077f24ae6006ba7896b76b50badd7458fd094e3c755e918893be6415.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5836
  - - \??\c:\Program Files\uqjvwkfm\hbmokkw.exe
      "c:\Program Files\uqjvwkfm\hbmokkw.exe" "c:\Program Files\uqjvwkfm\hbmokkw.dll",Compliance C:\Users\Admin\AppData\Local\Temp\xsien.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4944

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

hbmokkw.exe

Path C:\Program Files\uqjvwkfm\hbmokkw.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

xsien.exe

Path C:\Users\Admin\AppData\Local\Temp\xsien.exe
Size 198KB
SHA256 0983259818a535002ba5383bd1886d6bcd0692ad6c93c9ea06f86b67bf002dc5
MD5 bcf3bb8491860be4f60d25709d646310
SHA1 c368e7f0c4a8e3f2a93b8d7de14847db6f4911f0
SHA512 5fddbdbea71bcf0afc07174f9893b4e9f89a690323292436525fb5f28af0151f3a6cb963c0f1002058987a4a716efe828f7c1cf4bbea5ecf7225a640abf226b9
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T146141200DBA461E8D498607B0AC3B321FBF29ACDEB735BF152D6D13B9F51F162859890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

hbmokkw.dll

Path \??\c:\Program Files\uqjvwkfm\hbmokkw.dll
Size 141KB
SHA256 af62464a8d118e2b00365e868bb5f21f01f0981b57688361bae5e3233de4576b
MD5 55e0fdab64e5737d4e5d68d1bc148aae
SHA1 0d226b22b2ca97a167a2dd24a3285acd8373f52e
SHA512 f9339ba370847265e4636c88759edebdd5984605a64b937ab946101f4b4b90cc8ead1a38a0dbbbee5ee270690821c87446017738f6cdf57bf3a7253664304f31
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4l+:RGMmfToTJY6zpSyvkGSn1tl+
TLSH
T1C3E312E0E3A7C4B6C265573183937DF3162CF5346B18072EFD62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4416-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4416-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4416-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4416-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4944-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4944-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4944-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4944-21-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5836-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5836-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5836-12-0x0000000000400000-0x000000000044901D-memory.dmp

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