farfli | 30ab7a360409f0d022b7f85d3592185761ec70b65949ce032265d43af6543a5b

Analysis

max time kernel
148s
max time network
141s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 15:37

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General

Target
2026-08-04_60ed8e58b44c8bdae025479ed9771516_coinminer_elex_wannacry.exe
Size 402KB
Sample260804-s2yfasda66
SHA256 30ab7a360409f0d022b7f85d3592185761ec70b65949ce032265d43af6543a5b
MD5 60ed8e58b44c8bdae025479ed9771516
SHA1 1ee73193c448388e722828348388aa3bbd489fd2
SHA512 9dfd4fd35aae8b7d211441dd24edee3e2846477e5a9814ebbe9bc21534dc30bbcb2422a8b05b521132bd3210c16c2595d998c4ce882a11f9be648c58e36f6362
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumHx:zdE3sJd1fm/+yb3OYs84/JH6x
TLSH
T1F294AF01E78351D6DE8225B081FA7377B3789A4D0F12C7E3BB68EE2E6E211D1953B119
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/2616-10-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/2616-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/2616-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/2616-18-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/2616-10-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2616-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2616-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2616-18-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/4412-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/4412-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001b1d0-3.dat	UPX
behavioral2/memory/2004-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001c4bf-8.dat	UPX
behavioral2/memory/2616-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/2616-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/2616-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/2616-18-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2004	omoru.exe

Executes dropped EXE 2 IoCs

pid	Process
2004	omoru.exe
2616	gyi.exe

Loads dropped DLL 1 IoCs

pid	Process
2616	gyi.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\VIEW = "c:\\Program Files\\jidlp\\gyi.exe \"c:\\Program Files\\jidlp\\gyirg.dll\",Viewer"	gyi.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)	\??\z:	gyi.exe
File opened (read-only)	\??\a:	gyi.exe
File opened (read-only)	\??\h:	gyi.exe
File opened (read-only)	\??\n:	gyi.exe
File opened (read-only)	\??\o:	gyi.exe
File opened (read-only)	\??\p:	gyi.exe
File opened (read-only)	\??\r:	gyi.exe
File opened (read-only)	\??\s:	gyi.exe
File opened (read-only)	\??\t:	gyi.exe
File opened (read-only)	\??\b:	gyi.exe
File opened (read-only)	\??\u:	gyi.exe
File opened (read-only)	\??\x:	gyi.exe
File opened (read-only)	\??\y:	gyi.exe
File opened (read-only)	\??\j:	gyi.exe
File opened (read-only)	\??\l:	gyi.exe
File opened (read-only)	\??\v:	gyi.exe
File opened (read-only)	\??\w:	gyi.exe
File opened (read-only)	\??\d:	gyi.exe
File opened (read-only)	\??\g:	gyi.exe
File opened (read-only)	\??\i:	gyi.exe
File opened (read-only)	\??\k:	gyi.exe
File opened (read-only)	\??\m:	gyi.exe
File opened (read-only)	\??\q:	gyi.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	gyi.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\jidlp	omoru.exe
File created	\??\c:\Program Files\jidlp\gyirg.dll	omoru.exe
File created	\??\c:\Program Files\jidlp\gyi.exe	omoru.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
3424	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	gyi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-04_60ed8e58b44c8bdae025479ed9771516_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	omoru.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
3424	cmd.exe
756	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	gyi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	gyi.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
756	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2616	gyi.exe
2616	gyi.exe
2616	gyi.exe
2616	gyi.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	gyi.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4412	2026-08-04_60ed8e58b44c8bdae025479ed9771516_coinminer_elex_wannacry.exe
2004	omoru.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3424	4412	2026-08-04_60ed8e58b44c8bdae025479ed9771516_coinminer_elex_wannacry.exe	89
PID 3424 wrote to memory of 756	3424	cmd.exe	91
PID 3424 wrote to memory of 2004	3424	cmd.exe	92
PID 2004 wrote to memory of 2616	2004	omoru.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-04_60ed8e58b44c8bdae025479ed9771516_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-04_60ed8e58b44c8bdae025479ed9771516_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\omoru.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_60ed8e58b44c8bdae025479ed9771516_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:3424
- - 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:756
- - C:\Users\Admin\AppData\Local\Temp\omoru.exe
    C:\Users\Admin\AppData\Local\Temp\\omoru.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_60ed8e58b44c8bdae025479ed9771516_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:2004
  - - \??\c:\Program Files\jidlp\gyi.exe
      "c:\Program Files\jidlp\gyi.exe" "c:\Program Files\jidlp\gyirg.dll",Viewer C:\Users\Admin\AppData\Local\Temp\omoru.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:2616

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

gyi.exe

Path C:\Program Files\jidlp\gyi.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

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omoru.exe

Path C:\Users\Admin\AppData\Local\Temp\omoru.exe
Size 402KB
SHA256 52a32749f5a545af4295977f7ad5b388e350aac14797d38bb261cadf6b291f3e
MD5 d134fc31050acae51dbe1dbdae39c5c2
SHA1 2632938c2aee272bc5079d806a4d089f0f03163c
SHA512 a9e17545a5c4dbf4021bbe5b59e586bd5e1b264c1a4406a6ce45d4f132565fe3a79b9a9f34fb97a57ced39f6c2bcc07b9711076e266e979f7fb143c936983b06
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T1B994AF01E78351D6DE8225B081FA7377B3789A4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

gyirg.dll

Path \??\c:\Program Files\jidlp\gyirg.dll
Size 89KB
SHA256 6335c42c6938c33900c5a25c2b9ee3aad811dbedee776f87191860a623ec689f
MD5 85d0b18270e202fe14e7228076fd8c61
SHA1 a21bc6da9e810f574f4a3535e49e9124ac86654a
SHA512 40f48795f56484e554d0bfcebdaad016c2731afe6bcacc3e7132290bca611935da2a136c93dfc695d946bc4ceebb7e6aea6915dcb7141771af53bea5c4dbd579
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGC:M1uF6Feu2NlQOBcGC
TLSH
T16A9302C45665CD8BCCD87072327FAA4EE631D48CB941ACB34A5E13A31B36AF3D41AB45
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2004-7-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/2616-10-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2616-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2616-13-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2616-18-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4412-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4412-2-0x0000000000400000-0x0000000000471000-memory.dmp

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