farfli | a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1

Analysis

max time kernel
148s
max time network
142s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/10/2026, 07:04

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General

Target
a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.exe
Size 232KB
Sample261007-hwfcest1az
SHA256 a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1
MD5 97fda5dc6752b901650244d7fa21d79d
SHA1 f358e68f92c93f247c19e46793a9b8a652e60393
SHA512 b630017e160d030b2722a1187b7f49bdb80c7158ce38181ec3113eb659dfd04c3e1efd91df7d703e7d8e437685ae3d1e6258f3ed959db591aa6e307605491548
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T1E8340200D7B6E5E8D44824BA07879310EBE1DCDE7B73677183D5E31FAB41F1AA4AA190
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion 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/4240-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/4240-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/4240-21-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
1892	smxct.exe

Executes dropped EXE 2 IoCs

pid	Process
1892	smxct.exe
4240	kbg.exe

Loads dropped DLL 1 IoCs

pid	Process
4240	kbg.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-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\mcqqh\\kbg.exe \"c:\\Program Files\\mcqqh\\kbgkq.dll\",Compliance"	kbg.exe

Enumerates connected drives 3 TTPs 24 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:	kbg.exe
File opened (read-only)	\??\o:	kbg.exe
File opened (read-only)	\??\u:	kbg.exe
File opened (read-only)	\??\h:	kbg.exe
File opened (read-only)	\??\k:	kbg.exe
File opened (read-only)	\??\s:	kbg.exe
File opened (read-only)	\??\t:	kbg.exe
File opened (read-only)	\??\v:	kbg.exe
File opened (read-only)	\??\w:	kbg.exe
File opened (read-only)	\??\x:	kbg.exe
File opened (read-only)	\??\z:	kbg.exe
File opened (read-only)	\??\a:	kbg.exe
File opened (read-only)	\??\m:	kbg.exe
File opened (read-only)	\??\n:	kbg.exe
File opened (read-only)	\??\q:	kbg.exe
File opened (read-only)	\??\r:	kbg.exe
File opened (read-only)	\??\y:	kbg.exe
	\??\f:\	kbg.exe
File opened (read-only)	\??\g:	kbg.exe
File opened (read-only)	\??\i:	kbg.exe
File opened (read-only)	\??\p:	kbg.exe
File opened (read-only)	\??\b:	kbg.exe
File opened (read-only)	\??\d:	kbg.exe
File opened (read-only)	\??\j:	kbg.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	kbg.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\mcqqh	smxct.exe
File created	\??\c:\Program Files\mcqqh\kbgkq.dll	smxct.exe
File created	\??\c:\Program Files\mcqqh\kbg.exe	smxct.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
1292	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	kbg.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	kbg.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	smxct.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kbg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
1136	PING.EXE
1292	cmd.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	kbg.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kbg.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1136	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4240	kbg.exe
4240	kbg.exe
4240	kbg.exe
4240	kbg.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4240	kbg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
6008	a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.exe
1892	smxct.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 6008 wrote to memory of 1292	6008	a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.exe	89
PID 1292 wrote to memory of 1136	1292	cmd.exe	91
PID 1292 wrote to memory of 1892	1292	cmd.exe	92
PID 1892 wrote to memory of 4240	1892	smxct.exe	93

C:\Users\Admin\AppData\Local\Temp\a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.exe
"C:\Users\Admin\AppData\Local\Temp\a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6008
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\smxct.exe "C:\Users\Admin\AppData\Local\Temp\a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.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:1292
- - 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:1136
- - C:\Users\Admin\AppData\Local\Temp\smxct.exe
    C:\Users\Admin\AppData\Local\Temp\\smxct.exe "C:\Users\Admin\AppData\Local\Temp\a539001ed65b7d5273d2ae441d5f4b67753facf6a5133dbaf211e6569ca4e3a1.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:1892
  - - \??\c:\Program Files\mcqqh\kbg.exe
      "c:\Program Files\mcqqh\kbg.exe" "c:\Program Files\mcqqh\kbgkq.dll",Compliance C:\Users\Admin\AppData\Local\Temp\smxct.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4240

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

Indicator Removal

T1070

File Deletion

T1070.004

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

kbg.exe

Path C:\Program Files\mcqqh\kbg.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

smxct.exe

Path C:\Users\Admin\AppData\Local\Temp\smxct.exe
Size 232KB
SHA256 67d97d7f2e8df54fe30960cf1e6f8de275d6fa9c9698a596607acefb6707e1df
MD5 ebf792ff2cb8a53ea8ffbab3363a7ee2
SHA1 c1b1d250d73f477ed2461c63f6031503474e2957
SHA512 ff469d03a20470f5eb4b369fa70d4c0df44a84940c838ada1e4ec2670a466a8aa3d1070eea4d585cd07289e6ca01eb9b13cb0376984de6f0d301624c004495f0
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFKo:X2vnSwjaOcADw9cUeCOfJ
TLSH
T1DF340200D7B2E5E8D44824BA07879310EBE5DCDE7B73677183D5E31FAB41F1AA4AA190
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

kbgkq.dll

Path \??\c:\Program Files\mcqqh\kbgkq.dll
Size 141KB
SHA256 d3ef63eaa814814fb1d71307de046059a641621c080f20a697745e98bd4197a9
MD5 01612805051aa0e2abce36bb2e1fe68a
SHA1 e26f14a6b1cb4ae929a224ac9799904f8351d2d2
SHA512 98c8f8c8556d07c85b24b1175b0dd70039c69afeaa52e656de822a591c943ed383cd9d858e543ec0d73c0ac77e25485d8257dd69ea90ce8a1cefdb15b6eaaa5e
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lE:RGMmfToTJY6zpSyvkGSn1tlE
TLSH
T1AAE312E0E3A7C4B6C269573183937DF3162CF4346B18072AED62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1892-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1892-9-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1892-12-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4240-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4240-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4240-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4240-21-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/6008-5-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/6008-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/6008-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/6008-1-0x0000000000400000-0x000000000044901D-memory.dmp

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