farfli | 0c4f53610f00a004f3e9ff53c7b5e7b76947d06cc6809e60cf07a63f13fc6d6e

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
20/08/2026, 23:46

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_coinminer_elex_wannacry.exe
Size 413KB
Sample260820-3slp9acl5x
SHA256 0c4f53610f00a004f3e9ff53c7b5e7b76947d06cc6809e60cf07a63f13fc6d6e
MD5 96e3953b5aca52c6c6f86300f1a564c0
SHA1 2d4c5019e270b892fc847da60cfe4cfba13c7702
SHA512 f936b6ef75939b621c8fd419d4b92d9cfbf81ef4c8c829d477a7b883883dd6ba4f40cb87ae43ca84782e103a3d0deed462b4516d85ac908d7b22041b57aaa063
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19S:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T18994D02272D08BA3C1856032CE66E67CD3E5CD689C705E3773E9F65DEE36941423A274
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/1724-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/1724-13-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/1724-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1724-13-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2948-0-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral2/memory/2948-2-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral2/files/0x000c000000016cdc-3.dat	UPX
behavioral2/memory/4932-6-0x0000000000400000-0x0000000000492000-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	1724	rundll32.exe
9	1724	rundll32.exe
10	1724	rundll32.exe
11	1724	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4932	etqud.exe

Executes dropped EXE 1 IoCs

pid	Process
4932	etqud.exe

Loads dropped DLL 1 IoCs

pid	Process
1724	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-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\rohjb\\cizyk.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)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	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)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	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)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\l:	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\rohjb	etqud.exe
File created	\??\c:\Program Files\rohjb\cizyk.dll	etqud.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
4872	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_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	etqud.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
4872	cmd.exe
124	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
124	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1724	rundll32.exe
1724	rundll32.exe
1724	rundll32.exe
1724	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2948	2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_coinminer_elex_wannacry.exe
4932	etqud.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 4872	2948	2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_coinminer_elex_wannacry.exe	89
PID 4872 wrote to memory of 124	4872	cmd.exe	91
PID 4872 wrote to memory of 4932	4872	cmd.exe	92
PID 4932 wrote to memory of 1724	4932	etqud.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\etqud.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_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:4872
- - 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:124
- - C:\Users\Admin\AppData\Local\Temp\etqud.exe
    C:\Users\Admin\AppData\Local\Temp\\etqud.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_96e3953b5aca52c6c6f86300f1a564c0_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:4932
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\rohjb\cizyk.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\etqud.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:1724

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

Loading Replay Monitor...

Downloads

etqud.exe

Path C:\Users\Admin\AppData\Local\Temp\etqud.exe
Size 414KB
SHA256 410288f44941996f0f0a833d2919ffc7c3fca1ca48b376b0fd986bb1dfe49f51
MD5 393eab2dfefabe9fd607942dbfd4b701
SHA1 4992941d28138aa53cb689ea2d973c8236035f65
SHA512 453e280e972d1a16dfb3223b58717b3102e628846ef83ff9fb7798a99ac46b566cab489de103ff124c8efdf44a866a0e163373c7de4533c73591b49252663fa5
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19S:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T1B894D02272D08BA3C1856032CE66E67CD3E5CD689C705E3773E9F65DEE36941423A234
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

cizyk.dll

Path \??\c:\Program Files\rohjb\cizyk.dll
Size 176KB
SHA256 de87e2f36b05158d65a8bfea0f47720991427683641edc6a1a949c388ad1da6e
MD5 9ab29f519ad168f6c983e7b2ed31edd3
SHA1 62e92fc347437f1bfd58c5920413d4ffff80e91d
SHA512 453c95c4606ff2b29da53acc55ba7fc9912c27295cbc4165b3b8a9bc22c1912a41308ae9b5a1e4ed5ef7b0befe43229387580b65c45732490e05859356d9fc99
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFooc9:1Jv2tOItshGYdMnYYVjasKbOWSFof9
TLSH
T138041261862D1C34D087B7717B05920DF6B453A491B9CB93F7B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1724-10-0x000000001005A000-0x000000001005B000-memory.dmp

Download

memory/1724-9-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/1724-11-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/1724-13-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2948-0-0x0000000000400000-0x0000000000492000-memory.dmp

Download

memory/2948-2-0x0000000000400000-0x0000000000492000-memory.dmp

Download

memory/4932-6-0x0000000000400000-0x0000000000492000-memory.dmp

Download