farfli | 091fd3cd991c2a190f5ad1617671443cdda71fc5360a849476c8e83a9264b10e

Analysis

max time kernel
150s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/08/2026, 11:29

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General

Target
2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_coinminer_elex_wannacry.exe
Size 413KB
Sample260820-nlrklayxft
SHA256 091fd3cd991c2a190f5ad1617671443cdda71fc5360a849476c8e83a9264b10e
MD5 c328b430666fe8a47a90bc1dd9c071e1
SHA1 6e54bbcdbe72e102c857aa9f371d851bd4aa3752
SHA512 ce1424d84498f6410cbac56d350c9334b3d5c1b3b37a2093b199b94f70c61908c9a207fb4a47679c13418f19a82d3b592bb02ed949259f8ccc950b1d0c7164b8
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19S:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T1C094D02272D08BA3C1856032CE66E67CD3E5CD689C705E3773E9F65DEE36941423A274
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 2 IoCs

resource	yara_rule
behavioral2/memory/6128-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/6128-13-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/6128-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6128-13-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4260-0-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral2/memory/4260-2-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral2/files/0x000600000001b86d-3.dat	UPX
behavioral2/memory/3676-6-0x0000000000400000-0x0000000000492000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
7	6128	rundll32.exe
9	6128	rundll32.exe
10	6128	rundll32.exe
11	6128	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3676	xmnyob.exe

Executes dropped EXE 1 IoCs

pid	Process
3676	xmnyob.exe

Loads dropped DLL 1 IoCs

pid	Process
6128	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-1-5-21-189034102-168398478-1159367937-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\judoxsxbr\\vppty.dll\",InitEngine"	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)	\??\q:	rundll32.exe
File opened (read-only)	\??\l:	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)	\??\x:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\judoxsxbr	xmnyob.exe
File created	\??\c:\Program Files\judoxsxbr\vppty.dll	xmnyob.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
5520	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	2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_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	xmnyob.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
5520	cmd.exe
5024	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5024	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
6128	rundll32.exe
6128	rundll32.exe
6128	rundll32.exe
6128	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	6128	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4260	2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_coinminer_elex_wannacry.exe
3676	xmnyob.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 5520	4260	2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_coinminer_elex_wannacry.exe	89
PID 5520 wrote to memory of 5024	5520	cmd.exe	91
PID 5520 wrote to memory of 3676	5520	cmd.exe	92
PID 3676 wrote to memory of 6128	3676	xmnyob.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xmnyob.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_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:5520
- - 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:5024
- - C:\Users\Admin\AppData\Local\Temp\xmnyob.exe
    C:\Users\Admin\AppData\Local\Temp\\xmnyob.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_c328b430666fe8a47a90bc1dd9c071e1_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:3676
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\judoxsxbr\vppty.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\xmnyob.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:6128

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

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Downloads

xmnyob.exe

Path C:\Users\Admin\AppData\Local\Temp\xmnyob.exe
Size 413KB
SHA256 1f88bfad03773086a33addce71e588a1057148b54ef48c828a59f3f9373666c3
MD5 b0dc8e5a2c6980038e4b2901a22e6eda
SHA1 3865d9586e8bacd02bbdf091a7cc00591db22295
SHA512 f6680b0382cf0c04da2341528b6a74b78181576f48347ef1b046009bbb2dfdb62177238f87062af479c7d36c90387de0c9274e86ca28b2957df4e57cb42e10f1
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19S:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T16F94D02272D08BA3C1856032CE66E67CD3E5CD689C705E3773E9F65DEE36941423A274
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

vppty.dll

Path \??\c:\Program Files\judoxsxbr\vppty.dll
Size 176KB
SHA256 ce7977434892a6e413e8fecc8de5357d5543b8c63c54928e4cce022c38a9d915
MD5 f48592c6ac47196e9b00e378b991bd05
SHA1 cedf745cf488df7ebefcb4adb5f6661bcbf1c8d8
SHA512 5ec1f216d81ec600d0bdadf0172d05e299b2bd2ffc3b4a4fc0da82400762743412b8eee990f0c7788fc326f84306a95c839b091cb9695a107d3ee812b51b71b1
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocp:1Jv2tOItshGYdMnYYVjasKbOWSFofp
TLSH
T13C041261866D1C34D087B7717B05920DF6B453A49079CB93F7B8AF2B3D12AEA806E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3676-6-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/4260-0-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/4260-2-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/6128-10-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/6128-9-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/6128-11-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/6128-13-0x0000000010000000-0x0000000010067000-memory.dmp

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