farfli | b03340ba22b23b009677230fc6b8be4fe28f9f8486e731e3c7e9afeceb92fc60

Analysis

max time kernel
148s
max time network
138s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/10/2026, 14:18

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General

Target
2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe
Size 409KB
Sample261020-rmrtjaax2w
SHA256 b03340ba22b23b009677230fc6b8be4fe28f9f8486e731e3c7e9afeceb92fc60
MD5 878d260530a181e1b0a432606fbab273
SHA1 f29983d2997f0fb5727481085ce159559d934b80
SHA512 83f5c58fcc2785a6b83bd35e93f64a921adb178e68a3122ffe06118e3fca4d6c13ca2a1578d1b800e3ed0fc5175c62959d9380f097c9f0f17b5aa02a9d4c749a
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4:zdE3sJd1fm/+yb3OYs84/JHd
TLSH
T19994AF01E7C351D6DE82257081FA7376B3789A4D0F12CBE3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/4376-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/4376-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/4376-16-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/4376-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4376-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4376-16-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/4772-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/4772-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000600000001b85c-3.dat	UPX
behavioral2/memory/1888-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001c522-8.dat	UPX
behavioral2/memory/4376-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4376-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4376-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4376-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
1888	wwmiv.exe

Executes dropped EXE 2 IoCs

pid	Process
1888	wwmiv.exe
4376	qwx.exe

Loads dropped DLL 1 IoCs

pid	Process
4376	qwx.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-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\dezrzbx\\qwx.exe \"c:\\Program Files\\dezrzbx\\qwxnd.dll\",Viewer"	qwx.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)	\??\a:	qwx.exe
File opened (read-only)	\??\b:	qwx.exe
File opened (read-only)	\??\k:	qwx.exe
File opened (read-only)	\??\n:	qwx.exe
File opened (read-only)	\??\o:	qwx.exe
File opened (read-only)	\??\p:	qwx.exe
File opened (read-only)	\??\s:	qwx.exe
File opened (read-only)	\??\t:	qwx.exe
File opened (read-only)	\??\i:	qwx.exe
File opened (read-only)	\??\j:	qwx.exe
File opened (read-only)	\??\q:	qwx.exe
File opened (read-only)	\??\w:	qwx.exe
File opened (read-only)	\??\h:	qwx.exe
File opened (read-only)	\??\l:	qwx.exe
File opened (read-only)	\??\r:	qwx.exe
File opened (read-only)	\??\z:	qwx.exe
File opened (read-only)	\??\d:	qwx.exe
File opened (read-only)	\??\g:	qwx.exe
File opened (read-only)	\??\m:	qwx.exe
File opened (read-only)	\??\u:	qwx.exe
File opened (read-only)	\??\v:	qwx.exe
File opened (read-only)	\??\x:	qwx.exe
File opened (read-only)	\??\y:	qwx.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	qwx.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\dezrzbx	wwmiv.exe
File created	\??\c:\Program Files\dezrzbx\qwxnd.dll	wwmiv.exe
File created	\??\c:\Program Files\dezrzbx\qwx.exe	wwmiv.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
484	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	qwx.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	qwx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-19_878d260530a181e1b0a432606fbab273_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	wwmiv.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
484	cmd.exe
2112	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	qwx.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	qwx.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2112	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4376	qwx.exe
4376	qwx.exe
4376	qwx.exe
4376	qwx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4376	qwx.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4772	2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe
1888	wwmiv.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 484	4772	2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe	90
PID 484 wrote to memory of 2112	484	cmd.exe	92
PID 484 wrote to memory of 1888	484	cmd.exe	93
PID 1888 wrote to memory of 4376	1888	wwmiv.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wwmiv.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_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:484
- - 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:2112
- - C:\Users\Admin\AppData\Local\Temp\wwmiv.exe
    C:\Users\Admin\AppData\Local\Temp\\wwmiv.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_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:1888
  - - \??\c:\Program Files\dezrzbx\qwx.exe
      "c:\Program Files\dezrzbx\qwx.exe" "c:\Program Files\dezrzbx\qwxnd.dll",Viewer C:\Users\Admin\AppData\Local\Temp\wwmiv.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4376

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

Indicator Removal

T1070

File Deletion

T1070.004

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

qwx.exe

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

Submit Download

wwmiv.exe

Path C:\Users\Admin\AppData\Local\Temp\wwmiv.exe
Size 409KB
SHA256 aec6a90673314c53784c8f7c077c6c7c14f0579ad173d412d83a209a34ed71d9
MD5 c2c81c6938da62eaf065a92f9e9040e5
SHA1 88a5bb98df4dde4259d1343534b228461befb27a
SHA512 ca1202c39713bbc570792a959db072813f3b1567ad6757ba0206b21445ab839db570c40d2fb09761f183ecc7c5748d0c0ac14d50f9459691763d2eac4be3566d
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4:zdE3sJd1fm/+yb3OYs84/JHd
TLSH
T1D194AF01E7C351D6DE82257081FA7376B3789A4D0F12CBE3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qwxnd.dll

Path \??\c:\Program Files\dezrzbx\qwxnd.dll
Size 89KB
SHA256 7faf4af67c512a5bcf525c457d004bd2c80ae80820f7f73e593cf2915e8f0568
MD5 4d92ab757e128bce4db575b32e372d52
SHA1 f6009ab171dcb9dea4e76834c99d3c6879249811
SHA512 5504c4815d7b8bb5cb4ef0a510b3d5e40d53d57d7de9cc9c75040e47b564a9378e3282996b957fc1b0702f02552dbe4ff1ad21381ec09c6c2ac3238aff59b5d5
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlG4:M1uF6Feu2NlQOBcG4
TLSH
T19D9302C45665CD8BCCD87072727FAA4EE631D48CB941ACB34A5E13A31B36AF3D05A705
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1888-7-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4376-10-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4376-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4376-13-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4376-16-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4772-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4772-2-0x0000000000400000-0x0000000000471000-memory.dmp

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