farfli | 5e257ff6d3749c807ed65576b85ea6362a1c0d62233755f8d15ecf33b7e30475

Analysis

max time kernel
148s
max time network
136s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
23/10/2026, 12:26

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General

Target
2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_coinminer_elex_wannacry.exe
Size 402KB
Sample261023-pmbffast4r
SHA256 5e257ff6d3749c807ed65576b85ea6362a1c0d62233755f8d15ecf33b7e30475
MD5 4fae67b3fbc2cbea06c60f522e20296b
SHA1 72fce011f0accfea9125629e1c83b7653d92e17a
SHA512 4efcf73546cdb36a6ee01a061b927be1d150f1f0282faf6a12da378ebb22d86236f48f5eac1d1d1e7d230a1ed43e7c158671eb6c93bd341937d5ded4efbd31f0
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T19F94AF01E78351D6DE8225B081FA7377B3789A4D0F12C7E3BB68EE2E6E211D1953B119
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/4244-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/4244-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/4244-16-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/4244-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-16-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/3196-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/3196-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000600000001b85a-3.dat	UPX
behavioral2/memory/5108-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001c404-8.dat	UPX
behavioral2/memory/4244-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4244-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4244-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4244-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
5108	knsnq.exe

Executes dropped EXE 2 IoCs

pid	Process
5108	knsnq.exe
4244	sqlxnm.exe

Loads dropped DLL 1 IoCs

pid	Process
4244	sqlxnm.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\VIEW = "c:\\Program Files\\ocrdo\\sqlxnm.exe \"c:\\Program Files\\ocrdo\\sqlxnm.dll\",Viewer"	sqlxnm.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)	\??\d:	sqlxnm.exe
File opened (read-only)	\??\l:	sqlxnm.exe
File opened (read-only)	\??\p:	sqlxnm.exe
File opened (read-only)	\??\q:	sqlxnm.exe
File opened (read-only)	\??\r:	sqlxnm.exe
File opened (read-only)	\??\s:	sqlxnm.exe
File opened (read-only)	\??\u:	sqlxnm.exe
File opened (read-only)	\??\w:	sqlxnm.exe
File opened (read-only)	\??\h:	sqlxnm.exe
File opened (read-only)	\??\x:	sqlxnm.exe
File opened (read-only)	\??\y:	sqlxnm.exe
File opened (read-only)	\??\i:	sqlxnm.exe
File opened (read-only)	\??\n:	sqlxnm.exe
File opened (read-only)	\??\o:	sqlxnm.exe
File opened (read-only)	\??\t:	sqlxnm.exe
File opened (read-only)	\??\v:	sqlxnm.exe
File opened (read-only)	\??\z:	sqlxnm.exe
File opened (read-only)	\??\a:	sqlxnm.exe
File opened (read-only)	\??\b:	sqlxnm.exe
File opened (read-only)	\??\g:	sqlxnm.exe
File opened (read-only)	\??\j:	sqlxnm.exe
File opened (read-only)	\??\k:	sqlxnm.exe
File opened (read-only)	\??\m:	sqlxnm.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	sqlxnm.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ocrdo	knsnq.exe
File created	\??\c:\Program Files\ocrdo\sqlxnm.dll	knsnq.exe
File created	\??\c:\Program Files\ocrdo\sqlxnm.exe	knsnq.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
4848	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	sqlxnm.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	2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_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	knsnq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sqlxnm.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
3904	PING.EXE
4848	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	sqlxnm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	sqlxnm.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3904	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4244	sqlxnm.exe
4244	sqlxnm.exe
4244	sqlxnm.exe
4244	sqlxnm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4244	sqlxnm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3196	2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_coinminer_elex_wannacry.exe
5108	knsnq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4848	3196	2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_coinminer_elex_wannacry.exe	89
PID 4848 wrote to memory of 3904	4848	cmd.exe	91
PID 4848 wrote to memory of 5108	4848	cmd.exe	92
PID 5108 wrote to memory of 4244	5108	knsnq.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\knsnq.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_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:4848
- - 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:3904
- - C:\Users\Admin\AppData\Local\Temp\knsnq.exe
    C:\Users\Admin\AppData\Local\Temp\\knsnq.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-23_4fae67b3fbc2cbea06c60f522e20296b_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:5108
  - - \??\c:\Program Files\ocrdo\sqlxnm.exe
      "c:\Program Files\ocrdo\sqlxnm.exe" "c:\Program Files\ocrdo\sqlxnm.dll",Viewer C:\Users\Admin\AppData\Local\Temp\knsnq.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:4244

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

Replay Monitor

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Downloads

sqlxnm.exe

Path C:\Program Files\ocrdo\sqlxnm.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

knsnq.exe

Path C:\Users\Admin\AppData\Local\Temp\knsnq.exe
Size 402KB
SHA256 c4d7b34789cfd17e051946285e9d1e7be88ee48d145a3f8325f07a3a9c6088e7
MD5 9ec15317c75d9234d4d88f1e76b7c03c
SHA1 0dcf568671a9fb2a2cb26b7a1e0b3bed13530545
SHA512 f14b36cb862abbdcee82f90cb71bb6e488468b35ff9116e9c191b81174d71ff9fd17fdfe5fefb1fa241b6870532a23a221fab74000714b5b5570074912a73ecc
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T1EC94AF01E78351D6DE8225B081FA7377B3789A4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

sqlxnm.dll

Path \??\c:\Program Files\ocrdo\sqlxnm.dll
Size 89KB
SHA256 8d8eeb8beac0d1e06bd2fe826490ac5245b6f27d71c02d5f9f571b5b07423516
MD5 4d3970641cca1d4a7b26ac1612c0c7cd
SHA1 e19abc90616327bd291b2993ce3ad292989885e0
SHA512 9b6ef76cfa503b72ae28c7eb27b0d87936781faff4340c06aebf60f7c87e17d95538fbabfaf065d7cb8468640f83d000ac881393217bf286a5f25819b885d66f
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlG/:M1uF6Feu2NlQOBcG/
TLSH
T18C9302C45665CD8BCCD87072327FAA4EE631D4CCB941ACB34A5E17A31A36AF3D01AB05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3196-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/3196-2-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4244-10-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4244-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4244-13-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4244-16-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/5108-7-0x0000000000400000-0x0000000000471000-memory.dmp

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