farfli | 57eb20cc4a22bd24e673ef95df71d3469f04d303cae53fde51627c93436617f3

General

Target
2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_coinminer_elex_wannacry.exe
Size 413KB
Sample260930-dq5b5ssfpg
SHA256 57eb20cc4a22bd24e673ef95df71d3469f04d303cae53fde51627c93436617f3
MD5 35c11438b3ea6a89abe40e8b6e05bf41
SHA1 edd880348acfce4dee3c720b7ece2eee681991bc
SHA512 2951b48f0fc728d33543da0ff91fbd374ecd06343c9e9e5f607a371b3bd8e24414c61afa73b6c7aae61a5c8c741de910c65988bf3b6bf622e1d71acab73f3557
SSDEEP 12288:JdDU6g13sJd1fm/+yb3O2jg82ydU/DdKum8+:JdE3sJd1fm/+yb3OYg84/JHz+
TLSH
T14D94AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BBA8EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/3724-8-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3724-10-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3724-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/3724-8-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3724-10-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3724-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/files/0x000a000000016d03-1.dat	UPX
behavioral2/files/0x000d00000001c520-5.dat	UPX
behavioral2/memory/3724-7-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3724-8-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3724-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3724-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3464	zvrpl.exe

Executes dropped EXE 2 IoCs

pid	Process
3464	zvrpl.exe
3724	fngjqm.exe

Loads dropped DLL 1 IoCs

pid	Process
3724	fngjqm.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-1-5-21-2304238888-3968896904-642854331-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\wfnru\\fngjqm.exe \"c:\\Program Files\\wfnru\\fngjqm.dll\",Viewer"	fngjqm.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)	\??\x:	fngjqm.exe
File opened (read-only)	\??\j:	fngjqm.exe
File opened (read-only)	\??\l:	fngjqm.exe
File opened (read-only)	\??\r:	fngjqm.exe
File opened (read-only)	\??\t:	fngjqm.exe
File opened (read-only)	\??\v:	fngjqm.exe
File opened (read-only)	\??\y:	fngjqm.exe
File opened (read-only)	\??\a:	fngjqm.exe
File opened (read-only)	\??\b:	fngjqm.exe
File opened (read-only)	\??\g:	fngjqm.exe
File opened (read-only)	\??\n:	fngjqm.exe
File opened (read-only)	\??\s:	fngjqm.exe
File opened (read-only)	\??\z:	fngjqm.exe
File opened (read-only)	\??\d:	fngjqm.exe
	\??\f:\	fngjqm.exe
File opened (read-only)	\??\h:	fngjqm.exe
File opened (read-only)	\??\i:	fngjqm.exe
File opened (read-only)	\??\k:	fngjqm.exe
File opened (read-only)	\??\q:	fngjqm.exe
File opened (read-only)	\??\m:	fngjqm.exe
File opened (read-only)	\??\o:	fngjqm.exe
File opened (read-only)	\??\p:	fngjqm.exe
File opened (read-only)	\??\u:	fngjqm.exe
File opened (read-only)	\??\w:	fngjqm.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	fngjqm.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\wfnru	zvrpl.exe
File created	\??\c:\Program Files\wfnru\fngjqm.dll	zvrpl.exe
File created	\??\c:\Program Files\wfnru\fngjqm.exe	zvrpl.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
1328	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 1 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\Hostname	fngjqm.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	zvrpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fngjqm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_coinminer_elex_wannacry.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
1328	cmd.exe
4492	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	fngjqm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	fngjqm.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4492	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3724	fngjqm.exe
3724	fngjqm.exe
3724	fngjqm.exe
3724	fngjqm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3724	fngjqm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5612	2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_coinminer_elex_wannacry.exe
3464	zvrpl.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5612 wrote to memory of 1328	5612	2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_coinminer_elex_wannacry.exe	89
PID 1328 wrote to memory of 4492	1328	cmd.exe	91
PID 1328 wrote to memory of 3464	1328	cmd.exe	92
PID 3464 wrote to memory of 3724	3464	zvrpl.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zvrpl.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_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:1328
- - 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:4492
- - C:\Users\Admin\AppData\Local\Temp\zvrpl.exe
    C:\Users\Admin\AppData\Local\Temp\\zvrpl.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-29_35c11438b3ea6a89abe40e8b6e05bf41_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:3464
  - - \??\c:\Program Files\wfnru\fngjqm.exe
      "c:\Program Files\wfnru\fngjqm.exe" "c:\Program Files\wfnru\fngjqm.dll",Viewer C:\Users\Admin\AppData\Local\Temp\zvrpl.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:3724

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Pre-OS Boot

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

2

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

fngjqm.exe

Path C:\Program Files\wfnru\fngjqm.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

zvrpl.exe

Path C:\Users\Admin\AppData\Local\Temp\zvrpl.exe
Size 413KB
SHA256 6252f004baaa6dad7161ee2fa5e91594f1b55b9f1a416ab4866b6344795bf585
MD5 e45817e459d8eeda51a0d44cf17ded13
SHA1 b746b12c02d844444c033186a843c069411c1f58
SHA512 84cfe604a98c46654899542eae826eda4e7888216ab0ac1950470606e4b096fa85be49bbdf11063de23d5d1253ca9d8800dd7f5398c7adf22799714d24d3e158
SSDEEP 12288:JdDU6g13sJd1fm/+yb3O2jg82ydU/DdKum8:JdE3sJd1fm/+yb3OYg84/JHz
TLSH
T18994AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BBA8EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

fngjqm.dll

Path \??\c:\Program Files\wfnru\fngjqm.dll
Size 89KB
SHA256 91ca659a7f4a50d64ce4fcdac8a86bea4076f3cfff2bb8b4bacb8f3e3cfe32b8
MD5 ee23279edac5b262cb2720e559825a4e
SHA1 3329d22381a745a1e5d6edb32412f909eca5a3ac
SHA512 da272774df709eaec807b439b0254093fcfbf69030d9d7b01b33f9eee26ca520ab8055eb53edf1ee1da5e8ee1be13869a206da638bf08fd5fcec06af62b145bf
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGp:M1uF6Feu2NlQOBcGp
TLSH
T15F9302C45669CD8BCCD87072327FAA4EE631D48CB941ACB34A5E13A31A36AE3D41A705
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3724-7-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/3724-8-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/3724-10-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/3724-13-0x0000000010000000-0x0000000010033000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads