farfli | 6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8

Analysis

max time kernel
148s
max time network
142s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 07:52

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General

Target
6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.exe
Size 199KB
Sample260809-jqjnbstcpe
SHA256 6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8
MD5 e3535978b74f5f45e14abf8fda721073
SHA1 de13464ea941d5e6c82da5da72fc8f8e1c6e88ce
SHA512 ff09728bce6f675bc2585e026a638a737dcc77f385684fe58b8f8e1476f97d43f9292370824949d34ef200c2926cef9414a4f26d1095b0b9990be4f22049272e
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1D3141200DBB4A1E4D498747A0AC3A321EBF2DACDBB735BF152D6D22FAF41F152459890
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/2816-15-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/2816-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/2816-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/2816-21-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
5200	wyzkj.exe

Executes dropped EXE 2 IoCs

pid	Process
5200	wyzkj.exe
2816	lqn.exe

Loads dropped DLL 1 IoCs

pid	Process
2816	lqn.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\\vuext\\lqn.exe \"c:\\Program Files\\vuext\\lqnzl.dll\",Compliance"	lqn.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)	\??\d:	lqn.exe
File opened (read-only)	\??\i:	lqn.exe
File opened (read-only)	\??\m:	lqn.exe
File opened (read-only)	\??\o:	lqn.exe
File opened (read-only)	\??\r:	lqn.exe
File opened (read-only)	\??\s:	lqn.exe
File opened (read-only)	\??\w:	lqn.exe
File opened (read-only)	\??\b:	lqn.exe
File opened (read-only)	\??\g:	lqn.exe
File opened (read-only)	\??\j:	lqn.exe
File opened (read-only)	\??\l:	lqn.exe
File opened (read-only)	\??\q:	lqn.exe
File opened (read-only)	\??\t:	lqn.exe
File opened (read-only)	\??\u:	lqn.exe
File opened (read-only)	\??\v:	lqn.exe
File opened (read-only)	\??\a:	lqn.exe
File opened (read-only)	\??\h:	lqn.exe
File opened (read-only)	\??\n:	lqn.exe
File opened (read-only)	\??\p:	lqn.exe
File opened (read-only)	\??\x:	lqn.exe
File opened (read-only)	\??\y:	lqn.exe
File opened (read-only)	\??\k:	lqn.exe
File opened (read-only)	\??\z:	lqn.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	lqn.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\vuext	wyzkj.exe
File created	\??\c:\Program Files\vuext\lqnzl.dll	wyzkj.exe
File created	\??\c:\Program Files\vuext\lqn.exe	wyzkj.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
5860	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	wyzkj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lqn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.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
3652	PING.EXE
5860	cmd.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	lqn.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	lqn.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3652	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2816	lqn.exe
2816	lqn.exe
2816	lqn.exe
2816	lqn.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	lqn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4836	6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.exe
5200	wyzkj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 5860	4836	6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.exe	88
PID 5860 wrote to memory of 3652	5860	cmd.exe	90
PID 5860 wrote to memory of 5200	5860	cmd.exe	91
PID 5200 wrote to memory of 2816	5200	wyzkj.exe	92

C:\Users\Admin\AppData\Local\Temp\6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.exe
"C:\Users\Admin\AppData\Local\Temp\6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wyzkj.exe "C:\Users\Admin\AppData\Local\Temp\6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.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:5860
- - 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:3652
- - C:\Users\Admin\AppData\Local\Temp\wyzkj.exe
    C:\Users\Admin\AppData\Local\Temp\\wyzkj.exe "C:\Users\Admin\AppData\Local\Temp\6da86c2989e2d3837b6bff396807f8adf00faf679aa496718e6b94efe1a7d3a8.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:5200
  - - \??\c:\Program Files\vuext\lqn.exe
      "c:\Program Files\vuext\lqn.exe" "c:\Program Files\vuext\lqnzl.dll",Compliance C:\Users\Admin\AppData\Local\Temp\wyzkj.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:2816

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

lqn.exe

Path C:\Program Files\vuext\lqn.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

wyzkj.exe

Path C:\Users\Admin\AppData\Local\Temp\wyzkj.exe
Size 200KB
SHA256 85046c456835188b32ec37bd1ac709d4d196929865a9f7c82eb605be38392b43
MD5 26c1cd9873e715f012b8446c612e1bf5
SHA1 0d0e7c8a854473acfffe6edee40b234b5dc6d365
SHA512 1f0df274fc6981fbee5dc5cedeae5444c7046279b298e98c43f59e0b8e66a6df024c9da8723f2e337578a85a76612bd19e7cc02ba988ef15479fe88080164529
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T160141200DBB4A1E4D498747A0AC3A321EBF2DACDBB735BF152D6D22FAF41F152459890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

lqnzl.dll

Path \??\c:\Program Files\vuext\lqnzl.dll
Size 141KB
SHA256 d64b59f3eefbc3b62351b8565ee01528e465df9a544932c9759ea54cde9f0c84
MD5 6fa101f17caf108a6337b97cb23d796f
SHA1 9283921765b07de85fb8c42ab32545f5a75a5da1
SHA512 059d3d18c1b66fe2d4e8c02fac8055a54a8ac1896558f0577bbde7dc3fdc27906d18847541a233cd6869c4c886886fd36f53adeef466948b87acc1eff6cec6a7
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lJ:RGMmfToTJY6zpSyvkGSn1tlJ
TLSH
T194E312E0E3A7C4B6C265573183937DF3162CF5346B18072AED62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2816-21-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2816-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2816-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2816-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4836-5-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4836-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4836-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4836-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5200-12-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5200-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5200-9-0x0000000000400000-0x000000000044901D-memory.dmp

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