farfli | b8ead132165e4f5bf125143457e76a5605b1b80bf0a282ef2a361692059c27e7

General

Target
2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe
Size 416KB
Sample260810-e2paqs1dmc
SHA256 b8ead132165e4f5bf125143457e76a5605b1b80bf0a282ef2a361692059c27e7
MD5 8e5628ffd0f1e7eb8c38dbb93b6a784f
SHA1 52929849079424b6b83f9a126b416bafe508b66b
SHA512 30fac11c4a5f3593cd12cf8ce8aab6c70869e2b773b5e7d591a3ccebbb3d7508b3a8c81f5ece1ff144e717fc432d4b1d4a5ac7a50744d8b950e4cadd0c6887c1
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T1A694D02272D0CBA3C0856472CE66E63CD3E5CC689D705E3373E9FA5DEA36941423A275
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/2972-6-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/2972-8-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/2972-10-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/2972-6-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2972-8-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2972-10-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001b87d-1.dat	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
3	2972	rundll32.exe
9	2972	rundll32.exe
10	2972	rundll32.exe
11	2972	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2620	ftougertl.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	ftougertl.exe

Loads dropped DLL 1 IoCs

pid	Process
2972	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\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\idcrf\\lubgo.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)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	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)	\??\d:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\x:	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\idcrf	ftougertl.exe
File created	\??\c:\Program Files\idcrf\lubgo.dll	ftougertl.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
1184	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ftougertl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.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
1184	cmd.exe
700	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
700	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2972	rundll32.exe
2972	rundll32.exe
2972	rundll32.exe
2972	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
936	2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe
2620	ftougertl.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 1184	936	2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe	89
PID 1184 wrote to memory of 700	1184	cmd.exe	91
PID 1184 wrote to memory of 2620	1184	cmd.exe	92
PID 2620 wrote to memory of 2972	2620	ftougertl.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:936
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ftougertl.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_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:1184
- - 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:700
- - C:\Users\Admin\AppData\Local\Temp\ftougertl.exe
    C:\Users\Admin\AppData\Local\Temp\\ftougertl.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_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:2620
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\idcrf\lubgo.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\ftougertl.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:2972

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

ftougertl.exe

Path C:\Users\Admin\AppData\Local\Temp\ftougertl.exe
Size 416KB
SHA256 c9efa6a379c9562900f710184aaaeacab106ec3e6dc8b5425468f5802386b320
MD5 284140f7434166e33105b51fcacb9e81
SHA1 9cb97329fde5ad1dbc02ea649a4d0342cf83bf36
SHA512 3682d50bbf1c5e90088ace75c284d96262c6c430d200ac58986473a5356b7c4b2f378ef2e227b8356c66a4e93a60b21d82b811e678653eddb0c2a9a815d94a0d
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6Lj:jGmTju+mMC4ITJE8dfSJ/F6X
TLSH
T1E194D02272D0CBA3C0856472CE66E63CD3E5CC689D705E3373E9FA1DEA36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

lubgo.dll

Path \??\c:\Program Files\idcrf\lubgo.dll
Size 176KB
SHA256 e3f05fced5d22d853b4665d04081ae6d882954dd66c48bbd9c2a6152f9fe6f23
MD5 cf2978ab08efbdb77fc65b88a1ea84ac
SHA1 7b2f65d1cb9e3dc1c7b831f569f7f23f88016e89
SHA512 a86fe92f555cb92ccb6d4299d064d7e0b351b8dc0b63035ef193fdc8809230eb5b96c75bb921eca3284b020154976081b4de3732ba8b9804a1f5a38ef189fbe4
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocf:1Jv2tOItshGYdMnYYVjasKbOWSFoff
TLSH
T1F4041261866D1C34C087B7717F05920DF6B452A49179CB93F7B8AF2B3C12AEA806E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2972-6-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2972-7-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/2972-8-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2972-10-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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