farfli | 87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8

Analysis

max time kernel
150s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/08/2026, 16:19

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General

Target
87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.exe
Size 198KB
Sample260831-tsm4msythz
SHA256 87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8
MD5 425cca9dc3e032c5a258b2b0d13e3ec7
SHA1 dac2c071d7a88a57185b9a91201633913daf9750
SHA512 4df15c29700d6c3f3d884e15065ca55375de0a3452850427151e56831c4ee6cc7322b3ed842032c03e37716a3944ef4f12e497ccd1c4a5a114eb930ecd6d7c17
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1DE141200CFA466E8D498607A0AC37321EBF29ACDEB735BF152D6D13B9F51F162859890
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/3336-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/3336-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/3336-21-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
3008	swkco.exe

Executes dropped EXE 2 IoCs

pid	Process
3008	swkco.exe
3336	anvkfsstq.exe

Loads dropped DLL 1 IoCs

pid	Process
3336	anvkfsstq.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-1-5-21-2246396966-3025826688-3847171515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\ploda\\anvkfsstq.exe \"c:\\Program Files\\ploda\\anvkfsstq.dll\",Compliance"	anvkfsstq.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)	\??\b:	anvkfsstq.exe
File opened (read-only)	\??\g:	anvkfsstq.exe
File opened (read-only)	\??\x:	anvkfsstq.exe
File opened (read-only)	\??\j:	anvkfsstq.exe
File opened (read-only)	\??\k:	anvkfsstq.exe
File opened (read-only)	\??\l:	anvkfsstq.exe
File opened (read-only)	\??\m:	anvkfsstq.exe
File opened (read-only)	\??\n:	anvkfsstq.exe
File opened (read-only)	\??\r:	anvkfsstq.exe
File opened (read-only)	\??\u:	anvkfsstq.exe
File opened (read-only)	\??\z:	anvkfsstq.exe
File opened (read-only)	\??\a:	anvkfsstq.exe
File opened (read-only)	\??\o:	anvkfsstq.exe
File opened (read-only)	\??\p:	anvkfsstq.exe
File opened (read-only)	\??\q:	anvkfsstq.exe
File opened (read-only)	\??\t:	anvkfsstq.exe
File opened (read-only)	\??\v:	anvkfsstq.exe
File opened (read-only)	\??\w:	anvkfsstq.exe
File opened (read-only)	\??\y:	anvkfsstq.exe
File opened (read-only)	\??\d:	anvkfsstq.exe
File opened (read-only)	\??\h:	anvkfsstq.exe
File opened (read-only)	\??\i:	anvkfsstq.exe
File opened (read-only)	\??\s:	anvkfsstq.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	anvkfsstq.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ploda	swkco.exe
File created	\??\c:\Program Files\ploda\anvkfsstq.dll	swkco.exe
File created	\??\c:\Program Files\ploda\anvkfsstq.exe	swkco.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
4024	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	87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.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	swkco.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	anvkfsstq.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
4024	cmd.exe
3460	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	anvkfsstq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	anvkfsstq.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3460	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3336	anvkfsstq.exe
3336	anvkfsstq.exe
3336	anvkfsstq.exe
3336	anvkfsstq.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3336	anvkfsstq.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4952	87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.exe
3008	swkco.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 4024	4952	87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.exe	88
PID 4024 wrote to memory of 3460	4024	cmd.exe	90
PID 4024 wrote to memory of 3008	4024	cmd.exe	91
PID 3008 wrote to memory of 3336	3008	swkco.exe	92

C:\Users\Admin\AppData\Local\Temp\87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.exe
"C:\Users\Admin\AppData\Local\Temp\87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\swkco.exe "C:\Users\Admin\AppData\Local\Temp\87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.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:4024
- - 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:3460
- - C:\Users\Admin\AppData\Local\Temp\swkco.exe
    C:\Users\Admin\AppData\Local\Temp\\swkco.exe "C:\Users\Admin\AppData\Local\Temp\87cff480e48a1005fdbc693df17c61b6f430e206b9449fcf7e7c19e7775bcfb8.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:3008
  - - \??\c:\Program Files\ploda\anvkfsstq.exe
      "c:\Program Files\ploda\anvkfsstq.exe" "c:\Program Files\ploda\anvkfsstq.dll",Compliance C:\Users\Admin\AppData\Local\Temp\swkco.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:3336

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

anvkfsstq.dll

Path C:\Program Files\ploda\anvkfsstq.dll
Size 141KB
SHA256 62c2ecff6782217c183ee0484b899e982c132c9ca759fc3cd30de696741ca681
MD5 4028f5d991984c8431489b7263dc26e8
SHA1 e4e35598a26cee2a3ba1484e97b8e35d8cfc7683
SHA512 f000617dd08d97160bb1aea5ac3a32dac720e77eeb74b4c65bd1e8934c01043f78d73a5aa249e65389f16cecf9ee8ee35ed0eb8910325de81f55015cae5fac7a
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lP:RGMmfToTJY6zpSyvkGSn1tlP
TLSH
T1CAE302E0F3A7C4B6C269573183937DF3161CF5346B18072AED62A32769394C44A9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

anvkfsstq.exe

Path C:\Program Files\ploda\anvkfsstq.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

swkco.exe

Path C:\Users\Admin\AppData\Local\Temp\swkco.exe
Size 198KB
SHA256 226684c93b9d039670b3630395e691fffe0ce461bf8fad179920b41c9aa68585
MD5 b35f76f4e763df098d204590154ca4fa
SHA1 d9eb0255fd4f79a173cb863d9cbe66564d68429b
SHA512 591aa5bf4dff216541ef07ee23de8809bde988135f7da00b7beb3f8a7c846179937919513c5b89874b1399fb35cfd9ae02c54829444d76b6a0b708fe5ed821d2
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1E0141200CFA466E8D498607A0AC37321EBF29ACDEB735BF152D6D13B9F51F162859890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3008-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3008-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3008-12-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3336-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3336-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3336-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3336-21-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4952-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4952-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4952-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4952-2-0x0000000000400000-0x000000000044901D-memory.dmp

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