farfli | 074556722f1c8dfc9f93129144dc6fe45a5cb9becad6a061658339b9f0d1c520

Analysis

max time kernel
148s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/08/2026, 04:41

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General

Target
2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.exe
Size 407KB
Sample260810-fa9yssv1dv
SHA256 074556722f1c8dfc9f93129144dc6fe45a5cb9becad6a061658339b9f0d1c520
MD5 739709269b24fb441a4ee3b9b2b7b1cb
SHA1 5dfd9de74dade225d671b0fb7d1613d11f8d7a92
SHA512 66b0f63d768dac39b6b5d70468a123ae013446599643d78eb8ec7f3f468e2f78c3a2700709895b55ad153061c6ce5b130024710594d43a92cc78bca3e5cb6f46
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4V:zdE3sJd1fm/+yb3OYs84/JHdV
TLSH
T1ED94AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BB68EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli persistence spyware stealer

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 4 IoCs

resource	yara_rule
behavioral2/memory/1864-10-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/1864-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/1864-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/1864-16-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/1864-10-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1864-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1864-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1864-16-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/3264-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/3264-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000a00000001b315-3.dat	UPX
behavioral2/memory/2052-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001c4f2-8.dat	UPX
behavioral2/memory/1864-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/1864-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/1864-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/1864-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2052	ihxrvpj.exe

Executes dropped EXE 2 IoCs

pid	Process
2052	ihxrvpj.exe
1864	anskujax.exe

Loads dropped DLL 1 IoCs

pid	Process
1864	anskujax.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-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\cceyb\\anskujax.exe \"c:\\Program Files\\cceyb\\anskujax.dll\",Viewer"	anskujax.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:	anskujax.exe
File opened (read-only)	\??\b:	anskujax.exe
File opened (read-only)	\??\g:	anskujax.exe
File opened (read-only)	\??\i:	anskujax.exe
File opened (read-only)	\??\r:	anskujax.exe
File opened (read-only)	\??\s:	anskujax.exe
File opened (read-only)	\??\u:	anskujax.exe
File opened (read-only)	\??\v:	anskujax.exe
File opened (read-only)	\??\d:	anskujax.exe
File opened (read-only)	\??\h:	anskujax.exe
File opened (read-only)	\??\p:	anskujax.exe
File opened (read-only)	\??\q:	anskujax.exe
File opened (read-only)	\??\x:	anskujax.exe
File opened (read-only)	\??\z:	anskujax.exe
File opened (read-only)	\??\j:	anskujax.exe
File opened (read-only)	\??\k:	anskujax.exe
File opened (read-only)	\??\m:	anskujax.exe
File opened (read-only)	\??\n:	anskujax.exe
File opened (read-only)	\??\l:	anskujax.exe
File opened (read-only)	\??\o:	anskujax.exe
File opened (read-only)	\??\t:	anskujax.exe
File opened (read-only)	\??\w:	anskujax.exe
File opened (read-only)	\??\y:	anskujax.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	anskujax.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\cceyb\anskujax.exe	ihxrvpj.exe
File opened for modification	\??\c:\Program Files\cceyb	ihxrvpj.exe
File created	\??\c:\Program Files\cceyb\anskujax.dll	ihxrvpj.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
4116	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	2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.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	ihxrvpj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	anskujax.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
4632	PING.EXE
4116	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	anskujax.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	anskujax.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4632	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1864	anskujax.exe
1864	anskujax.exe
1864	anskujax.exe
1864	anskujax.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	anskujax.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3264	2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.exe
2052	ihxrvpj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3264 wrote to memory of 4116	3264	2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.exe	89
PID 4116 wrote to memory of 4632	4116	cmd.exe	91
PID 4116 wrote to memory of 2052	4116	cmd.exe	92
PID 2052 wrote to memory of 1864	2052	ihxrvpj.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3264
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ihxrvpj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.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:4116
- - 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:4632
- - C:\Users\Admin\AppData\Local\Temp\ihxrvpj.exe
    C:\Users\Admin\AppData\Local\Temp\\ihxrvpj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_739709269b24fb441a4ee3b9b2b7b1cb_coinminer_elex_wannacry.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:2052
  - - \??\c:\Program Files\cceyb\anskujax.exe
      "c:\Program Files\cceyb\anskujax.exe" "c:\Program Files\cceyb\anskujax.dll",Viewer C:\Users\Admin\AppData\Local\Temp\ihxrvpj.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:1864

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

anskujax.exe

Path C:\Program Files\cceyb\anskujax.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

ihxrvpj.exe

Path C:\Users\Admin\AppData\Local\Temp\ihxrvpj.exe
Size 407KB
SHA256 02ac54ce28f18b779ad03f7fd27f8fd8803131b6cf58411162cee021ad14a485
MD5 05263441574baf48e7e1fa96a50ba2c4
SHA1 d0353cf3f0cd87bb8faf6ba24d63a189ded54196
SHA512 b9f14de5ba734636f8674e5ed3ee205e8c52036cbb15f08d97f31bfc226930221d2fc9164303d52fdcfb9e9b5ed5e97935ddd9d181dac117b68ef1e62f12c2a7
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4U:zdE3sJd1fm/+yb3OYs84/JHdU
TLSH
T14494AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BB68EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

anskujax.dll

Path \??\c:\Program Files\cceyb\anskujax.dll
Size 89KB
SHA256 63d2e89137d5de98157f7400bdb9de2ad8b3ad5177408226766718abe7f9a567
MD5 6f789045771b03db6385dc17e1cc82c5
SHA1 c436ad1f3d9781350bfa93f35bd9d6eb65c05e75
SHA512 e34ccff52eaf9fdb05d808af85737cbcb3633819a1a09aca885c8b09a51b557e91018fa69f4ab55af0ee22606a462573539b6429c667c5bb24ac2ed4ac00a057
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGi:M1uF6Feu2NlQOBcGi
TLSH
T19B9302C45665CD8BCCD87072727FAA4EE631D4CCB941ACB34B5E13A31A36AE3D01AB05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1864-10-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1864-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1864-13-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1864-16-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2052-7-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/3264-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/3264-2-0x0000000000400000-0x0000000000471000-memory.dmp

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