farfli | be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee

Analysis

max time kernel
148s
max time network
144s
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, 09:02

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General

Target
be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.exe
Size 201KB
Sample260809-kzvbvsvajc
SHA256 be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee
MD5 349f1f1b9af7c5843c5b21f4da1e88a8
SHA1 633dab3e41e0bbdf61480496b35916c9c92a5c41
SHA512 6c23fa1b213fecb8c10be7d6f424e7d2fe069aedd70126ca890542d162925847e4e50fb3a8afb0bc5f77fa6c210f535095c95dd088a81a8fb42badc4a86aeaf7
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTB:X2vnSwjaOcADw9cUeCOff
TLSH
T1BB141200DBB461E8D498607B0AC3A311F7F29ACDBB735BF152D6D12FAF51F162459850
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/5304-14-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5304-15-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5304-17-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/5304-20-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
5756	vrzyc.exe

Executes dropped EXE 2 IoCs

pid	Process
5756	vrzyc.exe
5304	bag.exe

Loads dropped DLL 1 IoCs

pid	Process
5304	bag.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\\crsdezr\\bag.exe \"c:\\Program Files\\crsdezr\\baghu.dll\",Compliance"	bag.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)	\??\l:	bag.exe
File opened (read-only)	\??\m:	bag.exe
File opened (read-only)	\??\n:	bag.exe
File opened (read-only)	\??\q:	bag.exe
File opened (read-only)	\??\x:	bag.exe
File opened (read-only)	\??\b:	bag.exe
File opened (read-only)	\??\g:	bag.exe
File opened (read-only)	\??\i:	bag.exe
File opened (read-only)	\??\j:	bag.exe
File opened (read-only)	\??\k:	bag.exe
File opened (read-only)	\??\o:	bag.exe
File opened (read-only)	\??\p:	bag.exe
File opened (read-only)	\??\t:	bag.exe
File opened (read-only)	\??\d:	bag.exe
File opened (read-only)	\??\r:	bag.exe
File opened (read-only)	\??\u:	bag.exe
File opened (read-only)	\??\v:	bag.exe
File opened (read-only)	\??\w:	bag.exe
File opened (read-only)	\??\y:	bag.exe
File opened (read-only)	\??\a:	bag.exe
File opened (read-only)	\??\s:	bag.exe
File opened (read-only)	\??\z:	bag.exe
File opened (read-only)	\??\h:	bag.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	bag.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\crsdezr	vrzyc.exe
File created	\??\c:\Program Files\crsdezr\baghu.dll	vrzyc.exe
File created	\??\c:\Program Files\crsdezr\bag.exe	vrzyc.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
5000	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	be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.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	vrzyc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bag.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
5000	cmd.exe
2828	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bag.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bag.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2828	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5304	bag.exe
5304	bag.exe
5304	bag.exe
5304	bag.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5304	bag.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4688	be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.exe
5756	vrzyc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 5000	4688	be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.exe	89
PID 5000 wrote to memory of 2828	5000	cmd.exe	91
PID 5000 wrote to memory of 5756	5000	cmd.exe	92
PID 5756 wrote to memory of 5304	5756	vrzyc.exe	93

C:\Users\Admin\AppData\Local\Temp\be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.exe
"C:\Users\Admin\AppData\Local\Temp\be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vrzyc.exe "C:\Users\Admin\AppData\Local\Temp\be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.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:5000
- - 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:2828
- - C:\Users\Admin\AppData\Local\Temp\vrzyc.exe
    C:\Users\Admin\AppData\Local\Temp\\vrzyc.exe "C:\Users\Admin\AppData\Local\Temp\be000b5ca655fc225cc7b6dea046d60b7cb1d8b1b51f10756be02c984760e9ee.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:5756
  - - \??\c:\Program Files\crsdezr\bag.exe
      "c:\Program Files\crsdezr\bag.exe" "c:\Program Files\crsdezr\baghu.dll",Compliance C:\Users\Admin\AppData\Local\Temp\vrzyc.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:5304

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

bag.exe

Path C:\Program Files\crsdezr\bag.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

vrzyc.exe

Path C:\Users\Admin\AppData\Local\Temp\vrzyc.exe
Size 201KB
SHA256 f16438d4f51bd48fbc2280d1749a24a83487ad5d5d84d58cfe840f51ab7eb292
MD5 fd38db58fd81a60e13880e348c9e87b0
SHA1 070dcc8a2830729d4340d83957c52e51e629d006
SHA512 1493efead9cd1163ce16aa850ac1a2a86e9301684ec5efb6662f7abd9c2eecc0243e911b547931b8402bad345166bfca4cdc1d20fe9c7c97155b12fbe7c48c03
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT0:X2vnSwjaOcADw9cUeCOfS
TLSH
T10A141300DBB4A1E8D498607B0AC3A311E7F29ACDBB735BF152D6D12FAF41F166459890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

baghu.dll

Path \??\c:\Program Files\crsdezr\baghu.dll
Size 141KB
SHA256 e3d2e721206c06f069aa7e9faea723f0ed7d1bcc66b400611754bcb74daeab66
MD5 9501a936d44ee41ad8eabbb8a1043117
SHA1 057d71978a33bf78474c64409481887a01ce9801
SHA512 879b2b23c9f2e9a28d50b7bf001d56e4887a76a91b81764653186dc7e022a278cf6a12b8593c44bd0c1e633faa92d8b31fef5a126eb4d71656dcaeb79b525b0b
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lH:RGMmfToTJY6zpSyvkGSn1tlH
TLSH
T159E312E0E3B7C4B6C269573143937DF31628F5346B18072EFD62A32769394C44A9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4688-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4688-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4688-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4688-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5304-14-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5304-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5304-17-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5304-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5756-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5756-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5756-11-0x0000000000400000-0x000000000044901D-memory.dmp

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