farfli | 2688a0e29e534ff075c90fad70d9f60d5c0a4b09c97fea35926da1ecaed2a882

General

Target
2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_coinminer_elex_wannacry.exe
Size 417KB
Sample260802-vmpkysda86
SHA256 2688a0e29e534ff075c90fad70d9f60d5c0a4b09c97fea35926da1ecaed2a882
MD5 b8367663058e8ebcd4f533f5d38a4d0c
SHA1 9b3c9d65b8bb237dfb273e0c0d5bc5e5b453d826
SHA512 b8e521850737bde8b8a869fa13e62d645599e0ddd5de2f66800b6a3d29a2dc95d2ab6c1b5f58d2412e1d59a44f5b395b15b6c67a3054d8471d9749044cb65e80
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T16794D02272D0CBA3C0856432CE66E63CD3E5CC689D705E3773E9F65EEA36941423A275
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 3 IoCs

resource	yara_rule
behavioral2/memory/2824-6-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/2824-8-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/2824-10-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/2824-6-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2824-8-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2824-10-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001b85a-1.dat	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
8	2824	rundll32.exe
10	2824	rundll32.exe
11	2824	rundll32.exe
12	2824	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2672	vlukd.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	vlukd.exe

Loads dropped DLL 1 IoCs

pid	Process
2824	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-1-5-21-3611646547-550105268-947503007-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\dvklpjnu\\qhqgg.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)	\??\r:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	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\dvklpjnu	vlukd.exe
File created	\??\c:\Program Files\dvklpjnu\qhqgg.dll	vlukd.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
4312	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	2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_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	vlukd.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
4312	cmd.exe
4268	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
4268	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2824	rundll32.exe
2824	rundll32.exe
2824	rundll32.exe
2824	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2968	2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_coinminer_elex_wannacry.exe
2672	vlukd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 4312	2968	2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_coinminer_elex_wannacry.exe	89
PID 4312 wrote to memory of 4268	4312	cmd.exe	91
PID 4312 wrote to memory of 2672	4312	cmd.exe	92
PID 2672 wrote to memory of 2824	2672	vlukd.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vlukd.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_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:4312
- - 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:4268
- - C:\Users\Admin\AppData\Local\Temp\vlukd.exe
    C:\Users\Admin\AppData\Local\Temp\\vlukd.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_b8367663058e8ebcd4f533f5d38a4d0c_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:2672
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\dvklpjnu\qhqgg.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\vlukd.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:2824

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

vlukd.exe

Path C:\Users\Admin\AppData\Local\Temp\vlukd.exe
Size 417KB
SHA256 52d1bc3b2460ae7e5a068afe52d3bce389ed86527e14f06fb3a8a299f124efff
MD5 11e55f3f5936a703b93b5a642eb17a22
SHA1 8564c109fa3483ccacb3bc0037e84c7405598a20
SHA512 df47da24a7817fac7890a40e2df3b0138201a36de6d443488b505940db61c2e402dfcdfbe7bc4d404f1c0ef2694993e60d2f707d82b003604f705a0a435a7fa4
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LI:jGmTju+mMC4ITJE8dfSJ/F6c
TLSH
T1A094D02272D0CBA3C0856432CE66E63CD3E5CC689D705E3773E9F65EEA36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qhqgg.dll

Path \??\c:\Program Files\dvklpjnu\qhqgg.dll
Size 176KB
SHA256 f9412e0debd27c00dc3bed48c81d712d1e516c07e8027fff588566009343ffd9
MD5 11349da9ff2ba1647aab65eef40f6f05
SHA1 162c41b0241b0564965c49b10fcca9d97d1252f2
SHA512 3d9f0e16c8d3dd53eec9447213f16a271e5e4c182a63f59cd7e15629b8d0c969c77ed629eebcca3094df0ed10c588990c8291ed1c9c2a83250b9cba07fd85205
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocD:1Jv2tOItshGYdMnYYVjasKbOWSFofD
TLSH
T14A041261866D1C34D087B7717B05920DFAB453A49079CB93F7B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2824-9-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/2824-6-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2824-8-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2824-10-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads