farfli | 75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa

Analysis

max time kernel
149s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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
behavioral1/memory/5040-20-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/5040-22-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/5040-25-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
4760	ricadkum.exe

Executes dropped EXE 2 IoCs

pid	Process
4760	ricadkum.exe
5040	zngtkbxe.exe

Loads dropped DLL 1 IoCs

pid	Process
5040	zngtkbxe.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-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\lueczlaf\\zngtkbxe.exe \"c:\\Program Files\\lueczlaf\\zngtkbxe.dll\",Compliance"	zngtkbxe.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)	\??\v:	zngtkbxe.exe
File opened (read-only)	\??\y:	zngtkbxe.exe
File opened (read-only)	\??\g:	zngtkbxe.exe
File opened (read-only)	\??\o:	zngtkbxe.exe
File opened (read-only)	\??\p:	zngtkbxe.exe
File opened (read-only)	\??\z:	zngtkbxe.exe
File opened (read-only)	\??\h:	zngtkbxe.exe
File opened (read-only)	\??\j:	zngtkbxe.exe
File opened (read-only)	\??\n:	zngtkbxe.exe
File opened (read-only)	\??\r:	zngtkbxe.exe
File opened (read-only)	\??\t:	zngtkbxe.exe
File opened (read-only)	\??\u:	zngtkbxe.exe
File opened (read-only)	\??\w:	zngtkbxe.exe
File opened (read-only)	\??\e:	zngtkbxe.exe
File opened (read-only)	\??\i:	zngtkbxe.exe
File opened (read-only)	\??\l:	zngtkbxe.exe
File opened (read-only)	\??\x:	zngtkbxe.exe
File opened (read-only)	\??\a:	zngtkbxe.exe
File opened (read-only)	\??\b:	zngtkbxe.exe
File opened (read-only)	\??\k:	zngtkbxe.exe
File opened (read-only)	\??\m:	zngtkbxe.exe
File opened (read-only)	\??\q:	zngtkbxe.exe
File opened (read-only)	\??\s:	zngtkbxe.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	zngtkbxe.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\lueczlaf	ricadkum.exe
File created	\??\c:\Program Files\lueczlaf\zngtkbxe.dll	ricadkum.exe
File created	\??\c:\Program Files\lueczlaf\zngtkbxe.exe	ricadkum.exe
File opened for modification	\??\c:\Program Files\lueczlaf\zngtkbxe.exe	ricadkum.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
3492	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ricadkum.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zngtkbxe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.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
3492	cmd.exe
5024	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	zngtkbxe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	zngtkbxe.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5024	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5040	zngtkbxe.exe
5040	zngtkbxe.exe
5040	zngtkbxe.exe
5040	zngtkbxe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5040	zngtkbxe.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1752	75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe
4760	ricadkum.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 3492	1752	75649b8a72f2eabba144f5773c0992b38b029c132503449d65623cd73b11e7aa.exe	84
PID 3492 wrote to memory of 5024	3492	cmd.exe	86
PID 3492 wrote to memory of 4760	3492	cmd.exe	87
PID 4760 wrote to memory of 5040	4760	ricadkum.exe	88

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:1752
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ricadkum.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:3492
- - 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:5024
- - C:\Users\Admin\AppData\Local\Temp\ricadkum.exe
    C:\Users\Admin\AppData\Local\Temp\\ricadkum.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:4760
  - - \??\c:\Program Files\lueczlaf\zngtkbxe.exe
      "c:\Program Files\lueczlaf\zngtkbxe.exe" "c:\Program Files\lueczlaf\zngtkbxe.dll",Compliance C:\Users\Admin\AppData\Local\Temp\ricadkum.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:5040

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

Replay Monitor

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Downloads

zngtkbxe.dll

Path C:\Program Files\lueczlaf\zngtkbxe.dll
Size 141KB
SHA256 b1062ced14aa54d88415f82c693cc8b52fa5d99b1182122c04c0e461a0d0c8fc
MD5 3ee7e0af43a030812a60fde1793c447b
SHA1 6205861529cff325bc05e253f392b029598dd315
SHA512 8b27f9b640e1461dabbabef4369b1725dec4717a9e7a338ee2171ee7270946d8450292100aa26472a5ff3717357415289a3232c3e501afd949067343084c03b1
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lr:RGMmfToTJY6zpSyvkGSn1tlr
TLSH
T1BDE302E0E3A7C4B6C269573187937DF3162CF4346B18072EFD62A32769394C44B9DA16
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

zngtkbxe.exe

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

Submit Download

ricadkum.exe

Path C:\Users\Admin\AppData\Local\Temp\ricadkum.exe
Size 201KB
SHA256 293a1ec7fbe77abb06f4f444c4545ff2d96421538736b29389749d579ac75280
MD5 73d44e8f33b8f1dfe1fb4561be328e61
SHA1 2690e7ff4d10830e884b15c2cf9f844a8a0f08da
SHA512 fff5094144ccc45d80f434470b97b3bef585bc704a09aa8203ef6a58448749c4d627438614f0bf6bc49ae16f278aa669be9442b490fbc93c7c27fdc4a1284148
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTc:X2vnSwjaOcADw9cUeCOf6
TLSH
T1E7141200DBB4A1E8D498747A0AC3A311E7F2DACDBB735BF152D6D22FAF41F162459890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1752-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1752-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1752-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1752-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4760-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4760-9-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4760-16-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/5040-19-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5040-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5040-22-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/5040-25-0x0000000010000000-0x000000001004E000-memory.dmp

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