farfli | 274a83c1f52fbe8c9f841e95c3ae1a50f6db12b1750233952e0855b645770a5a

Analysis

max time kernel
150s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
26/04/2026, 04:45

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General

Target
2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_elex_wannacry.exe
Size 215KB
Sample260426-fdkhbady4y
SHA256 274a83c1f52fbe8c9f841e95c3ae1a50f6db12b1750233952e0855b645770a5a
MD5 8a69c54d21811f8abc4a48ca48f49ecf
SHA1 ddc6ff5efd2558ebfbd13228ffb83dda932e83a9
SHA512 7a7da7eca83baef9137afe9852504088050a9551469528897a1b8bfddb59fc3a91e8cfbffc713567643e5a075da698eeddf879d1c6269cee2bc0fecc59479147
SSDEEP 3072:TfwwHEzrV5x5tMBql0RZ4FjCDnO8XjDDQuMHNbwDXkLh16oVHe:zwgErtcql+ZHn1PDQfwDXkN1Z
TLSH
T1F724F1173A8189AFF00BFB76A746F4C78BD0A4283F44762F038C659E5A217CAC5951AD
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 2 IoCs

resource	yara_rule
behavioral1/memory/3296-12-0x0000000010000000-0x000000001006A000-memory.dmp	family_farfli
behavioral1/memory/3296-14-0x0000000010000000-0x000000001006A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/3296-12-0x0000000010000000-0x000000001006A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3296-14-0x0000000010000000-0x000000001006A000-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
9	3296	rundll32.exe
15	3296	rundll32.exe
19	3296	rundll32.exe
20	3296	rundll32.exe
31	3296	rundll32.exe
35	3296	rundll32.exe
39	3296	rundll32.exe
48	3296	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3920	zmkclizn.exe

Executes dropped EXE 1 IoCs

pid	Process
3920	zmkclizn.exe

Loads dropped DLL 1 IoCs

pid	Process
3296	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-1-5-21-312252282-3884318443-358092420-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\eljyk\\bqigm.dll\",encore"	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)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3296	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\eljyk	zmkclizn.exe
File created	\??\c:\Program Files\eljyk\bqigm.dll	zmkclizn.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	2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_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	zmkclizn.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
472	cmd.exe
5000	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
5000	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe
3296	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3296	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1188	2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_elex_wannacry.exe
3920	zmkclizn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 472	1188	2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_elex_wannacry.exe	84
PID 472 wrote to memory of 5000	472	cmd.exe	86
PID 472 wrote to memory of 3920	472	cmd.exe	87
PID 3920 wrote to memory of 3296	3920	zmkclizn.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zmkclizn.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:472
- - 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:5000
- - C:\Users\Admin\AppData\Local\Temp\zmkclizn.exe
    C:\Users\Admin\AppData\Local\Temp\\zmkclizn.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-26_8a69c54d21811f8abc4a48ca48f49ecf_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:3920
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\eljyk\bqigm.dll",encore C:\Users\Admin\AppData\Local\Temp\zmkclizn.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)
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3296

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

zmkclizn.exe

Path C:\Users\Admin\AppData\Local\Temp\zmkclizn.exe
Size 215KB
SHA256 ae92e6668045063413cdfe0a1db11d14032960315c82df7b1935ad649ceebb3f
MD5 94c0801568eb222cf4bbb7467ec22592
SHA1 d338e04d33c76cae6a358dc3ae8ccb65adad49ba
SHA512 71b1ec7197799c1f5424caf4112b7017f8467b1e763b13ca988f992ef9024ad874eff03bc5ea643b772ca0decd6228b0c55666d89702dd5c471b83852ebb1b09
SSDEEP 3072:TfwwHEzrV5x5tMBql0RZ4FjCDnO8XjDDQuMHNbwDXkLh16oVHel:zwgErtcql+ZHn1PDQfwDXkN1Z+
TLSH
T15424F1173A8189AFF00BFB76A746F4C78BD0A4283F44762F038C659E5A217CAC5951AD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

bqigm.dll

Path \??\c:\Program Files\eljyk\bqigm.dll
Size 168KB
SHA256 5e2be6bca30afd5dd73c82a49ae5c2b16dec04f37761ae236105d3fca4797a0a
MD5 a148552cf659c378532eac75a7eff744
SHA1 216732888f3e6de18261a55f6ce14d9fc3c6c0d5
SHA512 1300ea2ecde3690a44aff54d27abbd0b882633610c6db44078408577ab998a8e208c4ed7d419493319688a52960963e006b2e07631d79038959d303e60828988
SSDEEP 3072:pH7O5yt++RbfRugmVWo4GYessewQpCpxGWUJtff+gVBLpBuyCjAyFzui:pbay5fR5eOrixfYtff+g7LpBVCjAi
TLSH
T1ABF3E133F78247BAE0890375551BEC7FBC20A690833E8E2792CF519A2F156E56D5C3A1
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1188-0-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/1188-2-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3296-10-0x0000000010000000-0x000000001006A000-memory.dmp

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memory/3296-11-0x0000000010052000-0x0000000010053000-memory.dmp

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memory/3296-12-0x0000000010000000-0x000000001006A000-memory.dmp

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memory/3296-14-0x0000000010000000-0x000000001006A000-memory.dmp

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memory/3296-15-0x0000000003270000-0x0000000003343000-memory.dmp

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memory/3920-7-0x0000000000400000-0x0000000000436000-memory.dmp

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