farfli | a246eb7a17232326d457ed137ea59cd6f60387b19bcdbf2c813412033ec7304d

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
10/08/2026, 04:18

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General

Target
2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_coinminer_elex_wannacry.exe
Size 412KB
Sample260810-ew1ftavyaz
SHA256 a246eb7a17232326d457ed137ea59cd6f60387b19bcdbf2c813412033ec7304d
MD5 9af1c8e3a81cb6174682cb5e40a671f8
SHA1 fc1acfc6be8e9dd606c000b982054ad53bf8721c
SHA512 5fa2e39f22cb3ad8bf501e2e2d7c61509ab3f1e9d2346de0bc92a53757cb4c00566934467c5ff609aa3b0f56dabea4efce58ce8629359fac09ee47a63e9d6ca1
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19S:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T15F94D02272D08BA3C1866032CD66EA7CD3E5CD689C705E3773E9F65DEE36941423A274
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
behavioral1/memory/2636-10-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral1/memory/2636-13-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral1/memory/2636-14-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/2636-10-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2636-13-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2636-14-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/3600-0-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral1/memory/3600-2-0x0000000000400000-0x0000000000492000-memory.dmp	UPX
behavioral1/files/0x001200000002416d-4.dat	UPX
behavioral1/memory/1648-7-0x0000000000400000-0x0000000000492000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
7	2636	rundll32.exe
31	2636	rundll32.exe
32	2636	rundll32.exe
51	2636	rundll32.exe

Deletes itself 1 IoCs

pid	Process
1648	ewtuoths.exe

Executes dropped EXE 1 IoCs

pid	Process
1648	ewtuoths.exe

Loads dropped DLL 1 IoCs

pid	Process
2636	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-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\wjbax\\pnovp.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)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	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)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\u:	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 created	\??\c:\Program Files\wjbax\pnovp.dll	ewtuoths.exe
File opened for modification	\??\c:\Program Files\wjbax	ewtuoths.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
1116	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	ewtuoths.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_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

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
1116	cmd.exe
4372	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
4372	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2636	rundll32.exe
2636	rundll32.exe
2636	rundll32.exe
2636	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2636	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3600	2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_coinminer_elex_wannacry.exe
1648	ewtuoths.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3600 wrote to memory of 1116	3600	2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_coinminer_elex_wannacry.exe	84
PID 1116 wrote to memory of 4372	1116	cmd.exe	86
PID 1116 wrote to memory of 1648	1116	cmd.exe	87
PID 1648 wrote to memory of 2636	1648	ewtuoths.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ewtuoths.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_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:1116
- - 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:4372
- - C:\Users\Admin\AppData\Local\Temp\ewtuoths.exe
    C:\Users\Admin\AppData\Local\Temp\\ewtuoths.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_9af1c8e3a81cb6174682cb5e40a671f8_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:1648
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\wjbax\pnovp.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\ewtuoths.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:2636

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

Replay Monitor

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Downloads

ewtuoths.exe

Path C:\Users\Admin\AppData\Local\Temp\ewtuoths.exe
Size 413KB
SHA256 b0854edba9a1ea9af9025efb45cbf33cc2d575f78178c6f28e2876fbf4cbe68f
MD5 fe9b5805796033b051a29d0c1e296099
SHA1 44321e1b7110b6ef3b1ce80b0ca7e731de9e3cfd
SHA512 f4e7a8dc639d3258293cef59e866c8266d25f42820b918537e7690590ea8c7ec010e58eee1aeb18d35c0371e77bbf432d36c61c20c9ecebd0654cec7ea4481a0
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19S:UGmTau+mMC4ITJE8dfSJ/F1
TLSH
T17A94D02272D08BA3C1866032CD66EA7CD3E5CD689C705E3773E9F65DEE36941423A274
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

pnovp.dll

Path \??\c:\Program Files\wjbax\pnovp.dll
Size 176KB
SHA256 b0ba448aa69786f23706b80aff5464f8ef181f802dfb8c8ac9c31372780c6882
MD5 1346276639295c399f4cae5130b9be2e
SHA1 c56b222baa936ea4be4866aa76cb3cb5f47b6807
SHA512 bd2bdecbbe390d2ed1d7d9c90299fbefc943f3fb9439d57028296e09a0b373614245a9059d2bd09df82d59b21a7ddc2d7e0786226f0501900321572e52172df8
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFooc3:1Jv2tOItshGYdMnYYVjasKbOWSFof3
TLSH
T139041261862D1C34D087B7717B05920DF6B452A49179CB93F7B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1648-7-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/2636-11-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/2636-10-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2636-13-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/2636-14-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/3600-0-0x0000000000400000-0x0000000000492000-memory.dmp

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memory/3600-2-0x0000000000400000-0x0000000000492000-memory.dmp

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