farfli | a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
08/08/2026, 09:41

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General

Target
a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.exe
Size 242KB
Sample260808-lnvc6atgrd
SHA256 a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc
MD5 d25679a563f73815294dccb208ec8a8e
SHA1 208de4ab05d38b003f266c59314801ec80ffb6a6
SHA512 bf3979892db9399c31b277678c6c5cf68351e126feaa50694b9d1755f7b15dd30048c75ae1e6fdb8e0d057aab973081cc8922c2699302ccd78c739db73cccd26
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFKw:X2vnSwjaOcADw9cUeCOff
TLSH
T1CE340100D7B2E5E8D44824BA0787D310EAE1DC9E7F73677143D9E31FAB41F1AA4AA194
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
behavioral1/memory/3936-19-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/3936-20-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/3936-22-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/3936-25-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
3360	rgdpzpq.exe

Executes dropped EXE 2 IoCs

pid	Process
3360	rgdpzpq.exe
3936	sbrhbfi.exe

Loads dropped DLL 1 IoCs

pid	Process
3936	sbrhbfi.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-1-5-21-2937465464-4167303362-2236413517-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\bqzosxgo\\sbrhbfi.exe \"c:\\Program Files\\bqzosxgo\\sbrhbfi.dll\",Compliance"	sbrhbfi.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)	\??\a:	sbrhbfi.exe
File opened (read-only)	\??\e:	sbrhbfi.exe
File opened (read-only)	\??\o:	sbrhbfi.exe
File opened (read-only)	\??\p:	sbrhbfi.exe
File opened (read-only)	\??\t:	sbrhbfi.exe
File opened (read-only)	\??\v:	sbrhbfi.exe
File opened (read-only)	\??\h:	sbrhbfi.exe
File opened (read-only)	\??\k:	sbrhbfi.exe
File opened (read-only)	\??\l:	sbrhbfi.exe
File opened (read-only)	\??\q:	sbrhbfi.exe
File opened (read-only)	\??\s:	sbrhbfi.exe
File opened (read-only)	\??\u:	sbrhbfi.exe
File opened (read-only)	\??\y:	sbrhbfi.exe
File opened (read-only)	\??\z:	sbrhbfi.exe
File opened (read-only)	\??\b:	sbrhbfi.exe
File opened (read-only)	\??\g:	sbrhbfi.exe
File opened (read-only)	\??\m:	sbrhbfi.exe
File opened (read-only)	\??\n:	sbrhbfi.exe
File opened (read-only)	\??\r:	sbrhbfi.exe
File opened (read-only)	\??\w:	sbrhbfi.exe
File opened (read-only)	\??\x:	sbrhbfi.exe
File opened (read-only)	\??\i:	sbrhbfi.exe
File opened (read-only)	\??\j:	sbrhbfi.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	sbrhbfi.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\bqzosxgo	rgdpzpq.exe
File created	\??\c:\Program Files\bqzosxgo\sbrhbfi.dll	rgdpzpq.exe
File created	\??\c:\Program Files\bqzosxgo\sbrhbfi.exe	rgdpzpq.exe
File opened for modification	\??\c:\Program Files\bqzosxgo\sbrhbfi.exe	rgdpzpq.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
4860	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	a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.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	rgdpzpq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbrhbfi.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
4860	cmd.exe
3336	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	sbrhbfi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	sbrhbfi.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3336	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3936	sbrhbfi.exe
3936	sbrhbfi.exe
3936	sbrhbfi.exe
3936	sbrhbfi.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3936	sbrhbfi.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4728	a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.exe
3360	rgdpzpq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 4860	4728	a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.exe	84
PID 4860 wrote to memory of 3336	4860	cmd.exe	86
PID 4860 wrote to memory of 3360	4860	cmd.exe	88
PID 3360 wrote to memory of 3936	3360	rgdpzpq.exe	89

C:\Users\Admin\AppData\Local\Temp\a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.exe
"C:\Users\Admin\AppData\Local\Temp\a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rgdpzpq.exe "C:\Users\Admin\AppData\Local\Temp\a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.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:4860
- - 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:3336
- - C:\Users\Admin\AppData\Local\Temp\rgdpzpq.exe
    C:\Users\Admin\AppData\Local\Temp\\rgdpzpq.exe "C:\Users\Admin\AppData\Local\Temp\a4aac1dc76c71a26458c85c8ef6ae783bad6d104a067a41c2be216e33d2865bc.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:3360
  - - \??\c:\Program Files\bqzosxgo\sbrhbfi.exe
      "c:\Program Files\bqzosxgo\sbrhbfi.exe" "c:\Program Files\bqzosxgo\sbrhbfi.dll",Compliance C:\Users\Admin\AppData\Local\Temp\rgdpzpq.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:3936

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

sbrhbfi.exe

Path C:\Program Files\bqzosxgo\sbrhbfi.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rgdpzpq.exe

Path C:\Users\Admin\AppData\Local\Temp\rgdpzpq.exe
Size 243KB
SHA256 d2815593e2d21e2da7f9f0a36f38a666df76b9aeed31cde656e6a07dda6c3d83
MD5 468533224ee44eab9b177671771ff05c
SHA1 48221cd1e46553d4f12ffe547374edd33819fd45
SHA512 091d8de89c8568ac66d5405ec32b3afffabd03d1b259be47d3f570691781128fc23f87eb4f200731e7563dfb0703d0f49943d77c8e7e277c8a60bbdb42b6bf11
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T1C3340100D7B2E5E8D44824BA0787D310EAE1DC9E7F73677143D9E31FAB41F1AA4AA194
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

sbrhbfi.dll

Path \??\c:\Program Files\bqzosxgo\sbrhbfi.dll
Size 141KB
SHA256 93785cad7bcf24b4b4de879894172bf2b394934ae3593c619502c6a67de06d64
MD5 4e558c0b4d0b7bd680add6185a637950
SHA1 d32b6ab1bfda2c95af2fb3eb3c3657ac40170e5a
SHA512 363b0b931df276bed75d300cd155740738518d2c3c78dac252f99724af17485b1bd7a90d478b3d26aa12a8a5c781f5ef974616f0b98f7530044948aab1474ec2
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lO:RGMmfToTJY6zpSyvkGSn1tlO
TLSH
T1F4E312E0E3A7C4B6C269573183937DF3162CF5346B18072EED62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3360-9-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3360-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3360-16-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3936-19-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3936-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3936-22-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3936-25-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4728-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4728-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4728-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4728-1-0x0000000000400000-0x000000000044901D-memory.dmp

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