farfli | 59208ea41877863f3aef3a2c67dfb36a5a8624f687caf69c1151f319fea57329

Analysis

max time kernel
149s
max time network
150s
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, 07:08

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General

Target
2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_wannacry.exe
Size 545KB
Sample260820-hyj4dsvtbx
SHA256 59208ea41877863f3aef3a2c67dfb36a5a8624f687caf69c1151f319fea57329
MD5 61811ab6f6ce3a5e6b275e02c71def99
SHA1 abebdbc3a8544dfac438cd1b4d471b71398a2b3d
SHA512 79932ec4525181a109ad58918a86497074df2e1fc1e777516ceefbd0a1e08ecc701780c2f0306e1129c25a8c908a55caf7e85d20e58b121507cabcf9ea6dced6
SSDEEP 6144:YBcsToNOF/VPzPnVu14MfrkEzmI0jL1cb71Xzb7E:kcso2V7Pc4Mzpz10vCH1f7E
TLSH
T103C4127235660E5AE01682B0E7737D2DDA6DD80F35299A2B8F01140EA9739174CFAF4F
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/2656-7-0x0000000010000000-0x000000001007F000-memory.dmp	family_farfli
behavioral2/memory/2656-9-0x0000000010000000-0x000000001007F000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/2656-7-0x0000000010000000-0x000000001007F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2656-9-0x0000000010000000-0x000000001007F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 15 IoCs

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

flow	pid	Process
4	2656	rundll32.exe
5	2656	rundll32.exe
7	2656	rundll32.exe
6	2656	rundll32.exe
8	2656	rundll32.exe
14	2656	rundll32.exe
15	2656	rundll32.exe
16	2656	rundll32.exe
17	2656	rundll32.exe
18	2656	rundll32.exe
20	2656	rundll32.exe
21	2656	rundll32.exe
22	2656	rundll32.exe
23	2656	rundll32.exe
24	2656	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4156	jcljf.exe

Executes dropped EXE 1 IoCs

pid	Process
4156	jcljf.exe

Loads dropped DLL 1 IoCs

pid	Process
2656	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\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\knwhv\\mzpiy.dll\",Getlua"	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	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)	\??\a:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\p:	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

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
4852	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_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_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	jcljf.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
4884	PING.EXE
4852	cmd.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
4884	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe
2656	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3856	2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_wannacry.exe
4156	jcljf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 4852	3856	2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_wannacry.exe	89
PID 4852 wrote to memory of 4884	4852	cmd.exe	91
PID 4852 wrote to memory of 4156	4852	cmd.exe	92
PID 4156 wrote to memory of 2656	4156	jcljf.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jcljf.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_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:4852
- - 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:4884
- - C:\Users\Admin\AppData\Local\Temp\jcljf.exe
    C:\Users\Admin\AppData\Local\Temp\\jcljf.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_61811ab6f6ce3a5e6b275e02c71def99_elex_gh0st-rat_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4156
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\knwhv\mzpiy.dll",Getlua C:\Users\Admin\AppData\Local\Temp\jcljf.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:2656

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

jcljf.exe

Path C:\Users\Admin\AppData\Local\Temp\jcljf.exe
Size 546KB
SHA256 56742a4e88686cb05d417148abca02e067def9f763bafa071d4affb192acdeec
MD5 8ad33731dfdc4a4e610c24b7470cb63f
SHA1 d63b087821190443433ab34c03c0f512d9d6ac75
SHA512 251c5c663596c15833fd181151df0f2aaa380beda2324b3b410d017e774c7f475e5f2021622fd20fdad0e2c6a893151925a369be8029fc9efca5ca89610a9835
SSDEEP 6144:YBcsToNOF/VPzPnVu14MfrkEzmI0jL1cb71Xzb7t:kcso2V7Pc4Mzpz10vCH1f7t
TLSH
T1A6C4127235760E4AE01682B0E7727D2DDA6DD80F39199A2B8F00150EA9739174CFAF4F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

mzpiy.dll

Path \??\c:\knwhv\mzpiy.dll
Size 232KB
SHA256 17aabbdaaddc740f16cd3174cb60b08064433e9cd5767b2d664fee3ae49855cd
MD5 6bb7880df00824177633afcb73913851
SHA1 996466bbf7b727ff97d4a0a4db9ee459927e1260
SHA512 66ab3007893c397ae218d374893ea9dfc0bd8c911e8f50e1a367c91d5d8689cf4ad9f36a23cfb3a237bfd27a81727e1390c62e009df86adadbf833452cac1d7e
SSDEEP 6144:Pr8MZSC3s9b0gdl7RTk8WhBFfGuL/HiTE:wy/Gb99a8IFfRL/HkE
TLSH
T1E33412C1B3BE6134FC9383B50EA429BDF99045A42D3DE176EFA455263D02D2268396CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2656-6-0x0000000010000000-0x000000001007F000-memory.dmp

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memory/2656-7-0x0000000010000000-0x000000001007F000-memory.dmp

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memory/2656-9-0x0000000010000000-0x000000001007F000-memory.dmp

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