farfli | 9ea222a73101c559b349d01d8616df82b1c78454fbec181492782f4b7f0d82a5

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/08/2026, 02:57

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General

Target
2026-08-03_151398c24c52d0b7188f7507606fd434_coinminer_elex_wannacry.exe
Size 403KB
Sample260803-dfxvbabl2y
SHA256 9ea222a73101c559b349d01d8616df82b1c78454fbec181492782f4b7f0d82a5
MD5 151398c24c52d0b7188f7507606fd434
SHA1 3ed46c38f6251449336a6dc4b3d2604f1e64b9b3
SHA512 85f6e8da71d1f6b3b73263252750d6e10a20e1a2b39fb935df150d75032c23fa0999e86b386b9f9d946d958f77824998e231c8e02baa8c73b91552025db47e8c
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T1F394AF01E7C351D6DE8225B081FA7376B3789A4D0F12C7E3BB68EE2E6E211D1953B119
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/3608-10-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3608-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3608-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3608-16-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/3608-10-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3608-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3608-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3608-16-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/2484-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/2484-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x0006000000016b3a-3.dat	UPX
behavioral2/memory/2656-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x001500000001c329-8.dat	UPX
behavioral2/memory/3608-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3608-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3608-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3608-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2656	qebxrcmej.exe

Executes dropped EXE 2 IoCs

pid	Process
2656	qebxrcmej.exe
3608	nyg.exe

Loads dropped DLL 1 IoCs

pid	Process
3608	nyg.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-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\fiuvc\\nyg.exe \"c:\\Program Files\\fiuvc\\nygji.dll\",Viewer"	nyg.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)	\??\i:	nyg.exe
File opened (read-only)	\??\l:	nyg.exe
File opened (read-only)	\??\m:	nyg.exe
File opened (read-only)	\??\x:	nyg.exe
File opened (read-only)	\??\a:	nyg.exe
File opened (read-only)	\??\h:	nyg.exe
File opened (read-only)	\??\r:	nyg.exe
File opened (read-only)	\??\s:	nyg.exe
File opened (read-only)	\??\t:	nyg.exe
File opened (read-only)	\??\u:	nyg.exe
File opened (read-only)	\??\w:	nyg.exe
File opened (read-only)	\??\q:	nyg.exe
File opened (read-only)	\??\b:	nyg.exe
File opened (read-only)	\??\d:	nyg.exe
File opened (read-only)	\??\j:	nyg.exe
File opened (read-only)	\??\k:	nyg.exe
File opened (read-only)	\??\p:	nyg.exe
File opened (read-only)	\??\v:	nyg.exe
File opened (read-only)	\??\z:	nyg.exe
File opened (read-only)	\??\g:	nyg.exe
File opened (read-only)	\??\n:	nyg.exe
File opened (read-only)	\??\o:	nyg.exe
File opened (read-only)	\??\y:	nyg.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	nyg.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\fiuvc\nygji.dll	qebxrcmej.exe
File created	\??\c:\Program Files\fiuvc\nyg.exe	qebxrcmej.exe
File opened for modification	\??\c:\Program Files\fiuvc	qebxrcmej.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
1684	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	2026-08-03_151398c24c52d0b7188f7507606fd434_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	qebxrcmej.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nyg.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
1684	cmd.exe
1860	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	nyg.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	nyg.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1860	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3608	nyg.exe
3608	nyg.exe
3608	nyg.exe
3608	nyg.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3608	nyg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2484	2026-08-03_151398c24c52d0b7188f7507606fd434_coinminer_elex_wannacry.exe
2656	qebxrcmej.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 1684	2484	2026-08-03_151398c24c52d0b7188f7507606fd434_coinminer_elex_wannacry.exe	90
PID 1684 wrote to memory of 1860	1684	cmd.exe	92
PID 1684 wrote to memory of 2656	1684	cmd.exe	93
PID 2656 wrote to memory of 3608	2656	qebxrcmej.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-08-03_151398c24c52d0b7188f7507606fd434_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-03_151398c24c52d0b7188f7507606fd434_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qebxrcmej.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_151398c24c52d0b7188f7507606fd434_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:1684
- - 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:1860
- - C:\Users\Admin\AppData\Local\Temp\qebxrcmej.exe
    C:\Users\Admin\AppData\Local\Temp\\qebxrcmej.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_151398c24c52d0b7188f7507606fd434_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:2656
  - - \??\c:\Program Files\fiuvc\nyg.exe
      "c:\Program Files\fiuvc\nyg.exe" "c:\Program Files\fiuvc\nygji.dll",Viewer C:\Users\Admin\AppData\Local\Temp\qebxrcmej.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:3608

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

nyg.exe

Path C:\Program Files\fiuvc\nyg.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

qebxrcmej.exe

Path C:\Users\Admin\AppData\Local\Temp\qebxrcmej.exe
Size 403KB
SHA256 2065bfad38eda3e903277cd042e3cf5d67dfd204b0d68272b33094c5b5fa32c9
MD5 de952a38d686ecd1e3311c4e071d7799
SHA1 dca18b055248fd971089576e0e370f714828c63f
SHA512 d904a925aeddc4d9330ed6fb31e8ceb861c7086e902a31dc10c33d0fe105a1144f69517f45ce26a1feb2c31b8cf7f67ab4f941b94f2371a268895ffaf8f9d7a8
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumHQ:zdE3sJd1fm/+yb3OYs84/JH6Q
TLSH
T16194AF01E7C351D6DE8225B081FA7376B3789A4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

nygji.dll

Path \??\c:\Program Files\fiuvc\nygji.dll
Size 89KB
SHA256 b949ca11fe315e8e56b6927aa1b03ec5456a31290459c856fdb9e13825ac76a2
MD5 8b43de78593045d1a93c6288139b041d
SHA1 c7424b4bb2991f2d47a65ccbd90449a3ed4fc090
SHA512 6dc74f20d8a9849700ccd8fcac38b228b164a36052b4ecb56282c56996264482b43fa908608b754a081f6715ecbd2f47e9681b186b2fa28310d0e7cb984f153e
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGB:M1uF6Feu2NlQOBcGB
TLSH
T11A9302C45665CD8BCCD87072727FAA4EE631D4CCB941ACB34B5E13A31A36AE3D41AB05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2484-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/2484-2-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/2656-7-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/3608-10-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3608-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3608-13-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3608-16-0x0000000010000000-0x0000000010033000-memory.dmp

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