farfli | e09156825f2a45d276b0ae3d86c2c15e56228145e20c1747aa8126a13d1e36c1

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/08/2026, 16:54

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-08-02_c56adf975f2239e0aff678494da19b8a_coinminer_elex_wannacry.exe
Size 310KB
Sample260802-vel5vsch79
SHA256 e09156825f2a45d276b0ae3d86c2c15e56228145e20c1747aa8126a13d1e36c1
MD5 c56adf975f2239e0aff678494da19b8a
SHA1 c48ed2d690009ebb8c5f8893ca41bb472921d7cc
SHA512 a3b8f94780d7cd06f67c55eb37a21a44715925e56bc01c4fe287cdafb4aad41a9729bf134c683a13349ca93d54c6820d6e197580696478d0ae9c0d6c91cf050a
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOO:ywLcCmuErglr73aAD+r
TLSH
T13164F141D511CF47FC2FCAB6823E5E355317AE153B2056A3D3C8BA1F65B2B42A63A0D8
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli persistence spyware stealer upx

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 7 IoCs

resource	yara_rule
behavioral1/memory/1692-11-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1692-14-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1692-16-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1692-18-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1692-19-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1692-20-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1692-21-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral1/memory/1692-11-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1692-14-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1692-16-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1692-18-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1692-19-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1692-20-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1692-21-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/3908-0-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral1/memory/3908-2-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral1/files/0x00070000000231e6-4.dat	UPX
behavioral1/memory/4744-7-0x0000000000400000-0x0000000000483000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
5	1692	rundll32.exe
21	1692	rundll32.exe
25	1692	rundll32.exe
26	1692	rundll32.exe
37	1692	rundll32.exe
45	1692	rundll32.exe
61	1692	rundll32.exe
71	1692	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4744	wpatz.exe

Executes dropped EXE 1 IoCs

pid	Process
4744	wpatz.exe

Loads dropped DLL 1 IoCs

pid	Process
1692	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-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wetor = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\wfnyr\\faguobjmw.dll\",GetProc"	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)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	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)	\??\n:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	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

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3908-0-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/3908-2-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/files/0x00070000000231e6-4.dat	upx
behavioral1/memory/4744-7-0x0000000000400000-0x0000000000483000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\wfnyr	wpatz.exe
File created	\??\c:\Program Files\wfnyr\faguobjmw.dll	wpatz.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
4136	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_c56adf975f2239e0aff678494da19b8a_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	wpatz.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
4136	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
1692	rundll32.exe
1692	rundll32.exe
1692	rundll32.exe
1692	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3908	2026-08-02_c56adf975f2239e0aff678494da19b8a_coinminer_elex_wannacry.exe
4744	wpatz.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 4136	3908	2026-08-02_c56adf975f2239e0aff678494da19b8a_coinminer_elex_wannacry.exe	83
PID 4136 wrote to memory of 4268	4136	cmd.exe	85
PID 4136 wrote to memory of 4744	4136	cmd.exe	86
PID 4744 wrote to memory of 1692	4744	wpatz.exe	87

C:\Users\Admin\AppData\Local\Temp\2026-08-02_c56adf975f2239e0aff678494da19b8a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_c56adf975f2239e0aff678494da19b8a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wpatz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_c56adf975f2239e0aff678494da19b8a_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:4136
- - 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\wpatz.exe
    C:\Users\Admin\AppData\Local\Temp\\wpatz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_c56adf975f2239e0aff678494da19b8a_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:4744
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\wfnyr\faguobjmw.dll",GetProc C:\Users\Admin\AppData\Local\Temp\wpatz.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:1692

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

Loading Replay Monitor...

Downloads

wpatz.exe

Path C:\Users\Admin\AppData\Local\Temp\wpatz.exe
Size 311KB
SHA256 9518c4e1372b5f9091ca794267fb666ac5a86fbe3600c2cae6be662e07cca8e0
MD5 e07d3cd033ea392ae20b275fd3d391a0
SHA1 f671b19ddda349acf47b7e20592059cf4648be6e
SHA512 e9a737d59cfec7cf8217c67be75b2c2880a415a9b76b0e7d8e0b54029915ba1e45f64e2bde6fdabc01fcdb16b7b2df59348483f1c247ea19e449e47047890603
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOF:ywLcCmuErglr73aAD+c
TLSH
T10164F141D511CF47FC2FCAB6833E5E254317AE153B205663D3C8BA1FA5B2B52A63A0D8
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

faguobjmw.dll

Path \??\c:\Program Files\wfnyr\faguobjmw.dll
Size 218KB
SHA256 81c09354ad404849834204401e26662a7ad59eeb3c125aa0f6b8d19d6343bd3d
MD5 946c6d4151abee4620d926b46e0c836d
SHA1 1312c161bd94f382c79f591ea1b673915da0168e
SHA512 ffbfaceea158c79c1ceb1906daaa124fbf1899dfdece9892b48730c8c13363ca5b6eb62243f8cc9ffcc54e9c0067e87edfa3cd3125358537d860996adb28fe09
SSDEEP 6144:KORxNwD2VOidhzeXwddDzLi5vOQEqscr0ZTJauytA:pnNwDTi3swddDiROXIa
TLSH
T14024128BCF983873C5223379597951A0B9325290AFA1530D92E6D34FA072BA2CF7B531
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1692-16-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-10-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-11-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-13-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

Download

memory/1692-14-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-18-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-19-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-20-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/1692-21-0x0000000010000000-0x0000000010058000-memory.dmp

Download

memory/3908-2-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/3908-0-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/4744-7-0x0000000000400000-0x0000000000483000-memory.dmp

Download