farfli | 75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa

Analysis

max time kernel
148s
max time network
139s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/08/2026, 15:10

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General

Target
75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe
Size 201KB
Sample260803-skddsstxb1
SHA256 75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa
MD5 e323926656a45ebadc6f3e23c6886970
SHA1 73c0c9b4779c767bd749f5afa2d9be71f8745384
SHA512 3470830be9a3eb7a459c47a03bd197aaab886977230534ec4a4c1903fb230166cc96c8d0bd3d5da8230f57645a1457067945208240da732caf410bbb763879a9
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1E8141200DBB4A1E8D498747A0AC3A311E7F2DACDBB735BF152D6D22FAF41F162459890
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 3 IoCs

resource	yara_rule
behavioral2/memory/5076-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5076-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5076-23-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
2256	gfsoe.exe

Executes dropped EXE 2 IoCs

pid	Process
2256	gfsoe.exe
5076	vhek.exe

Loads dropped DLL 1 IoCs

pid	Process
5076	vhek.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\\zngqw\\vhek.exe \"c:\\Program Files\\zngqw\\vhekt.dll\",Compliance"	vhek.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)	\??\k:	vhek.exe
File opened (read-only)	\??\l:	vhek.exe
File opened (read-only)	\??\n:	vhek.exe
File opened (read-only)	\??\r:	vhek.exe
File opened (read-only)	\??\u:	vhek.exe
File opened (read-only)	\??\g:	vhek.exe
File opened (read-only)	\??\h:	vhek.exe
File opened (read-only)	\??\j:	vhek.exe
File opened (read-only)	\??\p:	vhek.exe
File opened (read-only)	\??\s:	vhek.exe
File opened (read-only)	\??\x:	vhek.exe
File opened (read-only)	\??\z:	vhek.exe
File opened (read-only)	\??\d:	vhek.exe
File opened (read-only)	\??\o:	vhek.exe
File opened (read-only)	\??\v:	vhek.exe
File opened (read-only)	\??\w:	vhek.exe
File opened (read-only)	\??\i:	vhek.exe
File opened (read-only)	\??\m:	vhek.exe
File opened (read-only)	\??\q:	vhek.exe
File opened (read-only)	\??\t:	vhek.exe
File opened (read-only)	\??\y:	vhek.exe
File opened (read-only)	\??\a:	vhek.exe
File opened (read-only)	\??\b:	vhek.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	vhek.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\zngqw	gfsoe.exe
File created	\??\c:\Program Files\zngqw\vhekt.dll	gfsoe.exe
File created	\??\c:\Program Files\zngqw\vhek.exe	gfsoe.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
4888	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	75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gfsoe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vhek.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
4888	cmd.exe
4560	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	vhek.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vhek.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4560	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5076	vhek.exe
5076	vhek.exe
5076	vhek.exe
5076	vhek.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	vhek.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1308	75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe
2256	gfsoe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 4888	1308	75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe	89
PID 4888 wrote to memory of 4560	4888	cmd.exe	91
PID 4888 wrote to memory of 2256	4888	cmd.exe	92
PID 2256 wrote to memory of 5076	2256	gfsoe.exe	93

C:\Users\Admin\AppData\Local\Temp\75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe
"C:\Users\Admin\AppData\Local\Temp\75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gfsoe.exe "C:\Users\Admin\AppData\Local\Temp\75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.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:4888
- - 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:4560
- - C:\Users\Admin\AppData\Local\Temp\gfsoe.exe
    C:\Users\Admin\AppData\Local\Temp\\gfsoe.exe "C:\Users\Admin\AppData\Local\Temp\75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.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:2256
  - - \??\c:\Program Files\zngqw\vhek.exe
      "c:\Program Files\zngqw\vhek.exe" "c:\Program Files\zngqw\vhekt.dll",Compliance C:\Users\Admin\AppData\Local\Temp\gfsoe.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:5076

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

vhek.exe

Path C:\Program Files\zngqw\vhek.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

gfsoe.exe

Path C:\Users\Admin\AppData\Local\Temp\gfsoe.exe
Size 201KB
SHA256 49f12737d0728feccf816a9d730f5133038abad28b81d955b9ee0aa5b2ca5d23
MD5 78b37ddd174d065ef62669b6d67d9299
SHA1 ab54bdce1729b82d16979e3276914c21678ef330
SHA512 eed54859e99abadd64a4ef1ebfcf82918579b6beacaaf6dd3b7747be1d5f2ab2788fb2d9e6352807fe9137692640579b4c317f8e3603d5997a05d8fce86b790b
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTo:X2vnSwjaOcADw9cUeCOfy
TLSH
T1F4141200DBB4A1E8D498747A0AC3A311E7F2DACDBB735BF152D6D22FAF41F162459890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

vhekt.dll

Path \??\c:\Program Files\zngqw\vhekt.dll
Size 141KB
SHA256 875a78bbe628278706e86166361494e41fd6faccf70b330666a4daf39cff26c4
MD5 427262f1748e6e01f804a64f6e6e4521
SHA1 46b09daa4df74de12b00820838d05517ac4dd40b
SHA512 d920590dd7e8a4420bc0d995e2f6f7829bd665bb0fce4e887292df755b57df930b9be18bf34ada5ecd47ba5b0968f5e5f4c5a90ab86cd4e3689c4da2438b743b
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lF:RGMmfToTJY6zpSyvkGSn1tlF
TLSH
T13AE312E0F3A7C4B6C269573187937DF31618F4346B18072EFD62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1308-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1308-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1308-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1308-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2256-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2256-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2256-12-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5076-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5076-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5076-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5076-23-0x0000000010000000-0x000000001004E000-memory.dmp

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