farfli | 1232f8295247432c72a3fa5f6b95cbf4122f8e825325b5a3185302300ecb189b

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/08/2026, 05:58

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General

Target
2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_coinminer_elex_wannacry.exe
Size 395KB
Sample260817-gpddtaeq8x
SHA256 1232f8295247432c72a3fa5f6b95cbf4122f8e825325b5a3185302300ecb189b
MD5 a77cfb27978ffc7c910529d5ea7d8fb9
SHA1 10202a7c8116b9e14ed2401a06d71878974cdc93
SHA512 aeaa76c6f343b3a4d8f2995ed90cf23ffa51763a41de3ad980e5a4f4599f647625ff1e6bb70f7af91f2b2df2658afbf9e4310f1284d6ef263f183f0f28ba01f3
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T1F984D02272D08BA3C1866432CE66E67CD3E5CD289C705E3773E9F65DEE36941423A274
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/1656-10-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/1656-13-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/1656-10-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1656-13-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2300-0-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral2/memory/2300-2-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral2/files/0x000600000001b85f-3.dat	UPX
behavioral2/memory/1004-6-0x0000000000400000-0x0000000000492000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
3	1656	rundll32.exe
6	1656	rundll32.exe
7	1656	rundll32.exe
10	1656	rundll32.exe

Deletes itself 1 IoCs

pid	Process
1004	xrldz.exe

Executes dropped EXE 1 IoCs

pid	Process
1004	xrldz.exe

Loads dropped DLL 1 IoCs

pid	Process
1656	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-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\pinqvqtd\\aegog.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)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\v:	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\pinqvqtd	xrldz.exe
File created	\??\c:\Program Files\pinqvqtd\aegog.dll	xrldz.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
4672	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	xrldz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_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

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
4672	cmd.exe
1144	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
1144	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1656	rundll32.exe
1656	rundll32.exe
1656	rundll32.exe
1656	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2300	2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_coinminer_elex_wannacry.exe
1004	xrldz.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 4672	2300	2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_coinminer_elex_wannacry.exe	90
PID 4672 wrote to memory of 1144	4672	cmd.exe	92
PID 4672 wrote to memory of 1004	4672	cmd.exe	93
PID 1004 wrote to memory of 1656	1004	xrldz.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xrldz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_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:4672
- - 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:1144
- - C:\Users\Admin\AppData\Local\Temp\xrldz.exe
    C:\Users\Admin\AppData\Local\Temp\\xrldz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-17_a77cfb27978ffc7c910529d5ea7d8fb9_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:1004
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\pinqvqtd\aegog.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\xrldz.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:1656

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

xrldz.exe

Path C:\Users\Admin\AppData\Local\Temp\xrldz.exe
Size 395KB
SHA256 b13d43884494874da63e652f498ef65c63a0e67345bc6207c77a5ba97ab83e5f
MD5 62b2eae83af848b1de8c20e0f2dbe044
SHA1 12268db7961ba6fcf6d0f20f9a5b5db15e510aea
SHA512 ccad838053a4d281ed4d77f71b92030ced8c10a55ac031d76603ff154ebdcfc3b693984ed6ca25e9c760e1c71a1d6e460fda58955bff24c3b97803281b92dd0e
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T10284D02272D08BA3C1866432CE66E67CD3E5CD289C705E3773E9F65DEE36941423A274
MD5 SHA1 SHA512 SSDEEP TLSH

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aegog.dll

Path \??\c:\Program Files\pinqvqtd\aegog.dll
Size 176KB
SHA256 c5d7756e6858a3d316f245e3ed27f7b58fbde274eebc84466c4ad0b5e2cdfe1f
MD5 4e854bfe6ce7252d60c0b6838c2d0553
SHA1 cb37468fe0eeacb6cf0b84e24181a51c03a26ef2
SHA512 3b7264f69d630cdfeb2d259b44be7a8a01c6e841c797b9f8dcdf4ca430b63e18271ec68af31f51d43825d7c49d2ad5c27021fed4de5803b604dd2a92e0520e5e
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocB:1Jv2tOItshGYdMnYYVjasKbOWSFofB
TLSH
T166041261866D1C34D087B7717B05920DF6B452A49079CBD3F7B8AF2B3D12AEA806E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1004-6-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/1656-9-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1656-10-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1656-12-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/1656-13-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2300-0-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/2300-2-0x0000000000400000-0x0000000000492000-memory.dmp

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