farfli | 4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5

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
20/07/2026, 08:50

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General

Target
4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.exe
Size 241KB
Sample260720-krvyesb16n
SHA256 4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5
MD5 f21eefbc28c337db23be4106dbe4a648
SHA1 47d95a4b27889d8dc74241f1aa3b9527002ef599
SHA512 dc1a536a67dd3fe36d53f2c8c53e9c6e5197a02cf915935e371d53572c829ab807606b24505a146cb595ac7305977591a8bef115dd44ba6e9053b85526483463
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T1C2340100D7B2E5E8D44824BA0787D310EAE1DCDE7B73677143D9E31FAB41F1AA4AA194
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/5692-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5692-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5692-21-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
4920	qosanty.exe

Executes dropped EXE 2 IoCs

pid	Process
4920	qosanty.exe
5692	dfwt.exe

Loads dropped DLL 1 IoCs

pid	Process
5692	dfwt.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-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\qbwxf\\dfwt.exe \"c:\\Program Files\\qbwxf\\dfwto.dll\",Compliance"	dfwt.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)	\??\o:	dfwt.exe
File opened (read-only)	\??\w:	dfwt.exe
File opened (read-only)	\??\a:	dfwt.exe
File opened (read-only)	\??\d:	dfwt.exe
File opened (read-only)	\??\h:	dfwt.exe
File opened (read-only)	\??\r:	dfwt.exe
File opened (read-only)	\??\j:	dfwt.exe
File opened (read-only)	\??\l:	dfwt.exe
File opened (read-only)	\??\m:	dfwt.exe
File opened (read-only)	\??\p:	dfwt.exe
File opened (read-only)	\??\q:	dfwt.exe
File opened (read-only)	\??\s:	dfwt.exe
File opened (read-only)	\??\v:	dfwt.exe
File opened (read-only)	\??\x:	dfwt.exe
File opened (read-only)	\??\g:	dfwt.exe
File opened (read-only)	\??\i:	dfwt.exe
File opened (read-only)	\??\n:	dfwt.exe
File opened (read-only)	\??\t:	dfwt.exe
File opened (read-only)	\??\u:	dfwt.exe
File opened (read-only)	\??\y:	dfwt.exe
File opened (read-only)	\??\z:	dfwt.exe
File opened (read-only)	\??\b:	dfwt.exe
File opened (read-only)	\??\k:	dfwt.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	dfwt.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\qbwxf\dfwto.dll	qosanty.exe
File created	\??\c:\Program Files\qbwxf\dfwt.exe	qosanty.exe
File opened for modification	\??\c:\Program Files\qbwxf	qosanty.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
712	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	4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.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	qosanty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dfwt.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
712	cmd.exe
5268	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	dfwt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dfwt.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5268	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5692	dfwt.exe
5692	dfwt.exe
5692	dfwt.exe
5692	dfwt.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5692	dfwt.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3116	4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.exe
4920	qosanty.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 712	3116	4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.exe	89
PID 712 wrote to memory of 5268	712	cmd.exe	91
PID 712 wrote to memory of 4920	712	cmd.exe	92
PID 4920 wrote to memory of 5692	4920	qosanty.exe	93

C:\Users\Admin\AppData\Local\Temp\4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.exe
"C:\Users\Admin\AppData\Local\Temp\4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qosanty.exe "C:\Users\Admin\AppData\Local\Temp\4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.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:712
- - 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:5268
- - C:\Users\Admin\AppData\Local\Temp\qosanty.exe
    C:\Users\Admin\AppData\Local\Temp\\qosanty.exe "C:\Users\Admin\AppData\Local\Temp\4d1f2db7e30c278def74cf89da1722d4eec9a7e537a65c874566de8e8dfd0ee5.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:4920
  - - \??\c:\Program Files\qbwxf\dfwt.exe
      "c:\Program Files\qbwxf\dfwt.exe" "c:\Program Files\qbwxf\dfwto.dll",Compliance C:\Users\Admin\AppData\Local\Temp\qosanty.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:5692

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

dfwt.exe

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

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qosanty.exe

Path C:\Users\Admin\AppData\Local\Temp\qosanty.exe
Size 241KB
SHA256 041aca4872d5364f3ae292b6daca7abdb6bce5929e0b8a672d2b8b1a94e56fbd
MD5 f3e28200294227c1ca8c38f579947f49
SHA1 bb671bf1d3d0ef68353a574952d4d89103898d29
SHA512 7293ee147a6f859653d7ce72783e96bc3791a345b064a048af50bd7c7c5d7e899a48ce59c5a46b00c0bf698664992edd11cae3e279a2dd9beebe62699f5102ad
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T1D0340100D7B2E5E8D44824BA0787D310EAE1DCDE7B73677143D9E31FAB41F1AA4AA194
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

dfwto.dll

Path \??\c:\Program Files\qbwxf\dfwto.dll
Size 141KB
SHA256 71b8abafa22c58f8efe2fb00c63aa6c137190ab339ca7462945478a8989e252e
MD5 548056d6f0c9c4f2757e4cb0e03c9900
SHA1 1eabadbd7d1202394e902b798124a4dc7670c17d
SHA512 5487ce5d8c71405a5fd071a71852fbcc42be2cfbdbdba0e81e67a9fd2c339242679475c8573beaf5cd8d0e92e43c5f50d6f24a42eb954032d2f24ab3198424b7
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4ll:RGMmfToTJY6zpSyvkGSn1tll
TLSH
T1C7E302E0E3A7C4B6C2655B3183937DF31618F5346B18072AED62A32769394C44B9DB1A
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3116-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3116-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3116-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3116-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4920-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4920-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4920-12-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5692-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5692-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5692-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5692-21-0x0000000010000000-0x000000001004E000-memory.dmp

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