farfli | e50bb18e4e82776d8a172cf5bb69f59f1089d29eb69a7d09c6e619b273316cf8

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
15/08/2026, 05:02

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General

Target
2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_coinminer_elex_wannacry.exe
Size 297KB
Sample260815-fpclvadh67
SHA256 e50bb18e4e82776d8a172cf5bb69f59f1089d29eb69a7d09c6e619b273316cf8
MD5 fba3dfa6c475e60a2a73d30a253a84b2
SHA1 c800d37e643690005048f9578a20ef9624dc4390
SHA512 9d358b15230efa8c2e422c6b769e4e24c1757bc8e6e8e63f912b0e7e7b07febdd73f715d106eb785c4d5643b9e9f940f44b1b99637acd22545b6e9078f00e28e
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOj:ywLcCmuErglr73aAD+m
TLSH
T19E540282E501DF17EC2FC7B6813E5E291217AF621B705597D3C0B91E26B3682B63A0DD
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
behavioral2/memory/1368-10-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/1368-12-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/1368-15-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/1368-17-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/1368-18-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/1368-19-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/1368-20-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral2/memory/1368-10-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1368-12-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1368-15-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1368-17-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1368-18-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1368-19-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1368-20-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/3896-0-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral2/memory/3896-2-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral2/files/0x000600000001b85f-3.dat	UPX
behavioral2/memory/3680-6-0x0000000000400000-0x0000000000483000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
7	1368	rundll32.exe
9	1368	rundll32.exe
11	1368	rundll32.exe
10	1368	rundll32.exe
12	1368	rundll32.exe
13	1368	rundll32.exe
15	1368	rundll32.exe
17	1368	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3680	wpgtzm.exe

Executes dropped EXE 1 IoCs

pid	Process
3680	wpgtzm.exe

Loads dropped DLL 1 IoCs

pid	Process
1368	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\Wetor = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\dqtbs\\lswobt.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)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\j:	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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3896-0-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral2/memory/3896-2-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral2/files/0x000600000001b85f-3.dat	upx
behavioral2/memory/3680-6-0x0000000000400000-0x0000000000483000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\dqtbs	wpgtzm.exe
File created	\??\c:\Program Files\dqtbs\lswobt.dll	wpgtzm.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
5096	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	2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_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	wpgtzm.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
5096	cmd.exe
4552	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4552	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1368	rundll32.exe
1368	rundll32.exe
1368	rundll32.exe
1368	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3896	2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_coinminer_elex_wannacry.exe
3680	wpgtzm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 5096	3896	2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_coinminer_elex_wannacry.exe	89
PID 5096 wrote to memory of 4552	5096	cmd.exe	91
PID 5096 wrote to memory of 3680	5096	cmd.exe	92
PID 3680 wrote to memory of 1368	3680	wpgtzm.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3896
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wpgtzm.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_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:5096
- - 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:4552
- - C:\Users\Admin\AppData\Local\Temp\wpgtzm.exe
    C:\Users\Admin\AppData\Local\Temp\\wpgtzm.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-15_fba3dfa6c475e60a2a73d30a253a84b2_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:3680
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\dqtbs\lswobt.dll",GetProc C:\Users\Admin\AppData\Local\Temp\wpgtzm.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:1368

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

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Downloads

wpgtzm.exe

Path C:\Users\Admin\AppData\Local\Temp\wpgtzm.exe
Size 297KB
SHA256 d43aa665aa84d54cbd3f7944d940f34cbb07e21f9cba3b60608775c8738326ad
MD5 4ec864f2c3db5a501a7bbc149de52acd
SHA1 da88ccda4ff52fb029b337a648705eb5430ad46a
SHA512 07404804454fceafd3d5572cab6d78132bbb61ace17f9a9a14817ea0704fa26c8c5ba4ed730e83b19ee68c41031baecac67c6ab3212affcd12cb52b8ceb65262
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOY:ywLcCmuErglr73aAD+T
TLSH
T156540282E501DF17EC2FC7B6813E5E291217AF621B705597D3C0B91E26B3682B63A0DD
MD5 SHA1 SHA512 SSDEEP TLSH

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lswobt.dll

Path \??\c:\Program Files\dqtbs\lswobt.dll
Size 218KB
SHA256 2fbefee13e00611df3fd318d46ff5211fba6c222f3ed11dbd53df63101d1fbaf
MD5 30dc1b1c61de53013e1a975697726dc7
SHA1 722198a263c309b3e435ff90e97e30c22d2dd4a0
SHA512 977348215ebd1f8ec0848af154653e356d3524925757945e646f00bce8866574ce34e12d7f2033a02db70c885b605beaa5679b3c5b8bcfd45f9fb69295e4516c
SSDEEP 6144:KORxNwD2VOidhzeXwddDzLi5vOQEqscr0ZTJauytQ:pnNwDTi3swddDiROXIG
TLSH
T1C324128BCF983873C5223379597951A0B9724290AFA1530D93E6D34FA072BA2CF7B531
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1368-15-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-9-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-10-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-12-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-14-0x00000000023B0000-0x00000000023B1000-memory.dmp

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memory/1368-17-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-18-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-19-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1368-20-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/3680-6-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/3896-2-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/3896-0-0x0000000000400000-0x0000000000483000-memory.dmp

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