farfli | a098f39a65f75cb9a207a22a44fab9cc4c43acc100aa864eb2d294cbb2367650

General

Target
2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe
Size 96KB
Sample260704-kmarpadt4w
SHA256 a098f39a65f75cb9a207a22a44fab9cc4c43acc100aa864eb2d294cbb2367650
MD5 397b781cfbb59b60c71e67a1353a9cf8
SHA1 f088530e5709e43396cb779b8f1c45e9297b8877
SHA512 e10f1eccd82c46dc73e850ed779d9112ddd51b8fce838a87c25da4e3304eb10b49283a96dc6aa4af04b05f4933c24639b33e7141ec8cdfc54bd62e3404051066
SSDEEP 3072:eSABNx6vb4RoI4pyjHYLhal01UoPX+hwo6P:el69Ml0TEK
TLSH
T14FA3AE03ABA589C9F1216C30562E773487BFA85D3F1457639348EE4EE437D85EC3628A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 1 IoCs

resource	yara_rule
behavioral1/memory/4780-11-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 1 IoCs

resource	yara_rule
behavioral1/memory/4780-11-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 8 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
14	4780	rundll32.exe
15	4780	rundll32.exe
16	4780	rundll32.exe
22	4780	rundll32.exe
32	4780	rundll32.exe
44	4780	rundll32.exe
46	4780	rundll32.exe
54	4780	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000300000001e6d8-8.dat	acprotect

Deletes itself 1 IoCs

pid	Process
2456	fmmhm.exe

Executes dropped EXE 1 IoCs

pid	Process
2456	fmmhm.exe

Loads dropped DLL 1 IoCs

pid	Process
4780	rundll32.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-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\hgwomkbq\\jcmxu.dll\",DoVirusScan"	rundll32.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)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.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	rundll32.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	2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_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	fmmhm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
3256	cmd.exe
4208	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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4208	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4780	rundll32.exe
4780	rundll32.exe
4780	rundll32.exe
4780	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4780	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2672	2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe
2456	fmmhm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 3256	2672	2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe	85
PID 3256 wrote to memory of 4208	3256	cmd.exe	87
PID 3256 wrote to memory of 2456	3256	cmd.exe	88
PID 2456 wrote to memory of 4780	2456	fmmhm.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\fmmhm.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3256
- - 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:4208
- - \??\c:\fmmhm.exe
    c:\fmmhm.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-04_397b781cfbb59b60c71e67a1353a9cf8_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2456
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\hgwomkbq\jcmxu.dll",DoVirusScan c:\fmmhm.exe
      4⤵
      Badlisted process makes network request
      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:4780

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

Modify Registry

1

T1112

Pre-OS Boot

1

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

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

fmmhm.exe

Path C:\fmmhm.exe
Size 97KB
SHA256 4eff66ea0126ceca4a2818e6de14b375673da066453da29b567093d7835e076f
MD5 c7a3efd2162e580e48af8b47cb62ce8f
SHA1 c5a3119acbb041183c2b6bc7512c5d8ae35940e7
SHA512 cf59d0b56aed5754c03914896878469f9fca612d6cea424a693896d2c3e8beca9d03206627104a92c3d17ea51ca9f4a347bf016741d923ddf8aa23583598953e
SSDEEP 3072:eSABNx6vb4RoI4pyjHYLhal01UoPX+hwo6P:el69Ml0TEg
TLSH
T142A3AE03ABA589C9F1217C30562E773487BEA85D3F1457639348EE4EE437D85EC3628A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

jcmxu.dll

Path \??\c:\hgwomkbq\jcmxu.dll
Size 50KB
SHA256 b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525
MD5 cbfc06794d16ace6adf42210183fc1b9
SHA1 74fc68a2af225b0aca954b3684940747511013c5
SHA512 181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9
SSDEEP 768:Z+arYIR3u5v4bGwCl56LNQQe5JBtGf1oTYtx/qQvorLOpqPJ/UP2Gy+OIudD05:ZPrG57TzDxJS6Etx/Zv2OwSy+OIOD05
TLSH
T15733F1ACE2F064F5D0AF6B345952225CF5C26F238D3190DB4A8214BF3C32A5B5B5E721
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2456-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2672-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2672-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4780-10-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/4780-11-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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