farfli | 6cf742018d9b6c6977b48f3b6c7552136cf2416d2cf8312728a3f6e99907b6a5

General

Target
2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_coinminer_elex_wannacry.exe
Size 400KB
Sample260730-fdravsbh79
SHA256 6cf742018d9b6c6977b48f3b6c7552136cf2416d2cf8312728a3f6e99907b6a5
MD5 eebf489b4dcce1f6c5f4a58656271e98
SHA1 6ccc0edd4d6fa461db58e5a207753a8ba06bf2fe
SHA512 df09633f06b8fdde248a08ac31905b6ae5ab978fd77092c2137b2303fe33e76a4a9524487bdbe853da36be7db8dddb7db046cb31c3824100c2f950b2719b4fb6
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T10294D02272C08BA3C1866432CDA6AA7CD3F5CD689C305E3773E9F65DDE36941423A275
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/1896-8-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/1896-10-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/1896-8-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1896-10-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001b884-1.dat	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
7	1896	rundll32.exe
9	1896	rundll32.exe
10	1896	rundll32.exe
11	1896	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4924	cpigr.exe

Executes dropped EXE 1 IoCs

pid	Process
4924	cpigr.exe

Loads dropped DLL 1 IoCs

pid	Process
1896	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\\ziuid\\vyzux.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)	\??\b:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\v:	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)	\??\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)	\??\t:	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\ziuid	cpigr.exe
File created	\??\c:\Program Files\ziuid\vyzux.dll	cpigr.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
6044	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	2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_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	cpigr.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
6044	cmd.exe
3304	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
3304	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1896	rundll32.exe
1896	rundll32.exe
1896	rundll32.exe
1896	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1896	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1152	2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_coinminer_elex_wannacry.exe
4924	cpigr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 6044	1152	2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_coinminer_elex_wannacry.exe	88
PID 6044 wrote to memory of 3304	6044	cmd.exe	90
PID 6044 wrote to memory of 4924	6044	cmd.exe	91
PID 4924 wrote to memory of 1896	4924	cpigr.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\cpigr.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_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:6044
- - 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:3304
- - C:\Users\Admin\AppData\Local\Temp\cpigr.exe
    C:\Users\Admin\AppData\Local\Temp\\cpigr.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-30_eebf489b4dcce1f6c5f4a58656271e98_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:4924
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\ziuid\vyzux.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\cpigr.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:1896

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

cpigr.exe

Path C:\Users\Admin\AppData\Local\Temp\cpigr.exe
Size 401KB
SHA256 87c1e98dee09c6d6e2b0743c78dd37f4197ec3f241d03abddac08e8dbfcac366
MD5 20396ca4f58fcfa4ae0097438973e4e1
SHA1 70aa48cc1524ab6640006a3da77f40da511a6cc1
SHA512 2626cf02375a955c9fc55c75655deae249ae07e8bde063f609e1fd7e4aa40f3e9a377c77ff535767bc3342886d0f8afb8c10562f91eca93e2e87a8be76c1fa36
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T17C94D02272C08BA3C1866432CDA6AA7CD3F5CD689C305E3773E9F65DDE36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

vyzux.dll

Path \??\c:\Program Files\ziuid\vyzux.dll
Size 176KB
SHA256 3e81f3bbc190917227e3219f3fbfe8e9f17628965d1742910a301f6e2451eef7
MD5 f16da4ec59fc521a0062bddd8e7d9d2a
SHA1 1652425dfa7ede353a9bc02480c88e7e6ebbee56
SHA512 a52a2448830036ef43b53e73c1b5127e235c888fe46905a24db648f623f991dd2fdc52e4f22fe43cbf93b63f2210fe10a591b18f5095ba891b0e93cf82cc44f6
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocs:1Jv2tOItshGYdMnYYVjasKbOWSFofs
TLSH
T1F8041261866D1C34D087B7717B05920DF6B452A490B9CB93F7B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1896-6-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1896-8-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1896-7-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/1896-10-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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