farfli | 8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628

Analysis

max time kernel
148s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/08/2026, 11:40

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General

Target
8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.exe
Size 197KB
Sample260831-ntcfmstth1
SHA256 8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628
MD5 256016db4adc493fa2f4a7fd92697416
SHA1 153821023767f4a616daa967d5f304c906361822
SHA512 aea7c6fbc25e9341252ae0ed0e5f7832aa1e38c414f7cda39437bb3aa07bfbb8496bc65cd2a8b017db55acc9f04566e99eee997d7b048c51fc0f4e2885969e27
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1A4141200DBA461E8D498607B0AC37321EBF29ACDEB735BF152D6D23B9F51F162859890
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/3356-15-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/3356-17-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/3356-20-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
4532	ceggldyep.exe

Executes dropped EXE 2 IoCs

pid	Process
4532	ceggldyep.exe
3356	otps.exe

Loads dropped DLL 1 IoCs

pid	Process
3356	otps.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-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\qzwbufy\\otps.exe \"c:\\Program Files\\qzwbufy\\otpsf.dll\",Compliance"	otps.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)	\??\g:	otps.exe
File opened (read-only)	\??\n:	otps.exe
File opened (read-only)	\??\v:	otps.exe
File opened (read-only)	\??\w:	otps.exe
File opened (read-only)	\??\x:	otps.exe
File opened (read-only)	\??\z:	otps.exe
File opened (read-only)	\??\a:	otps.exe
File opened (read-only)	\??\k:	otps.exe
File opened (read-only)	\??\m:	otps.exe
File opened (read-only)	\??\q:	otps.exe
File opened (read-only)	\??\y:	otps.exe
File opened (read-only)	\??\b:	otps.exe
File opened (read-only)	\??\d:	otps.exe
File opened (read-only)	\??\i:	otps.exe
File opened (read-only)	\??\l:	otps.exe
File opened (read-only)	\??\h:	otps.exe
File opened (read-only)	\??\j:	otps.exe
File opened (read-only)	\??\o:	otps.exe
File opened (read-only)	\??\p:	otps.exe
File opened (read-only)	\??\r:	otps.exe
File opened (read-only)	\??\s:	otps.exe
File opened (read-only)	\??\t:	otps.exe
File opened (read-only)	\??\u:	otps.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	otps.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\qzwbufy	ceggldyep.exe
File created	\??\c:\Program Files\qzwbufy\otpsf.dll	ceggldyep.exe
File created	\??\c:\Program Files\qzwbufy\otps.exe	ceggldyep.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
3788	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	8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.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	ceggldyep.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	otps.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
3788	cmd.exe
3316	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	otps.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	otps.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3316	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3356	otps.exe
3356	otps.exe
3356	otps.exe
3356	otps.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3356	otps.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4876	8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.exe
4532	ceggldyep.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 3788	4876	8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.exe	88
PID 3788 wrote to memory of 3316	3788	cmd.exe	90
PID 3788 wrote to memory of 4532	3788	cmd.exe	91
PID 4532 wrote to memory of 3356	4532	ceggldyep.exe	92

C:\Users\Admin\AppData\Local\Temp\8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.exe
"C:\Users\Admin\AppData\Local\Temp\8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ceggldyep.exe "C:\Users\Admin\AppData\Local\Temp\8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.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:3788
- - 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:3316
- - C:\Users\Admin\AppData\Local\Temp\ceggldyep.exe
    C:\Users\Admin\AppData\Local\Temp\\ceggldyep.exe "C:\Users\Admin\AppData\Local\Temp\8c1d76df8f059641db33aefd7f33f6ca1ead9771bfd4f86a7faf2b4de8c17628.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:4532
  - - \??\c:\Program Files\qzwbufy\otps.exe
      "c:\Program Files\qzwbufy\otps.exe" "c:\Program Files\qzwbufy\otpsf.dll",Compliance C:\Users\Admin\AppData\Local\Temp\ceggldyep.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:3356

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

otps.exe

Path C:\Program Files\qzwbufy\otps.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

ceggldyep.exe

Path C:\Users\Admin\AppData\Local\Temp\ceggldyep.exe
Size 197KB
SHA256 0bec525290868675f2cda23c2544cbfbeeefb5bd051cd61db561ce3fa384800c
MD5 5b467585b3ebe04689a7c0073ac6b640
SHA1 049b996b9abdf3476ae4b884a900c32781e274a7
SHA512 401b81f80a569948e35b0f39f7f9b9d2523674a0bc424b4b855b3276dd74262b01905934b3c43ca0092767bb8930abf22f8bbaffc99a92792b47ec4f8b4d1148
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
TLSH
T1BA141200DBA461E8D498607B0AC37321EBF29ACDEB735BF152D6D23B9F51F162859890
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

otpsf.dll

Path \??\c:\Program Files\qzwbufy\otpsf.dll
Size 141KB
SHA256 1a0c70a7df018b446cc344336821b7201f6b1c207c633c17eff976346be4278b
MD5 919d816ab011a6071bca9b1134477c19
SHA1 784099a289075a6cd5d9e6d2977e3a98a8062eb5
SHA512 87898b9b55e9a6536acd194d716bc56026e59f041a61632c07195f3c65075a9f039b59edeb53c40d623e063dbff1a18c9adbb0013974730ac6e582fd28d5cec5
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lQY:RGMmfToTJY6zpSyvkGSn1tlP
TLSH
T10CE302E0E3A7C4B6C265573187937DF3162CF4346B18072EED62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3356-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3356-17-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3356-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3356-14-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4532-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4532-11-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4532-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4876-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4876-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4876-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4876-2-0x0000000000400000-0x000000000044901D-memory.dmp

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