farfli | 1c32bf76e664c90e676d4c7360758799d70ea4f968af193ee535d2e144343e0f

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
01/07/2026, 08:56

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General

Target
2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe
Size 127KB
Sample260701-kv6t4act21
SHA256 1c32bf76e664c90e676d4c7360758799d70ea4f968af193ee535d2e144343e0f
MD5 93f133592ff4bceaabe584420637d441
SHA1 e224a019b5f4d93d260446d09b0f8668cc1a74b8
SHA512 4d444421ee7ac8c495dbea7a428f949f7121bb244cd7f5ac0701fbf742ee64cbf9a99cb95eab4c88ee4b4714531b5c615cca96a9bc524a03a52f3ffdf06275a2
SSDEEP 3072:xK4RNx6nb4RoIw/XBSeral6oaE0HGnvXuEOrc0pQ:xl6XYeel6GGGVO6
TLSH
T188D38C429BB589E5E0111CF4039BBB3483B5988D3B15A763D388DF0EE42DE85DB362D9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer upx

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/3772-11-0x0000000010000000-0x0000000010024000-memory.dmp	family_farfli
behavioral1/memory/3772-13-0x0000000010000000-0x0000000010024000-memory.dmp	family_farfli
behavioral1/memory/3772-15-0x0000000010000000-0x0000000010024000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/3772-11-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3772-13-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3772-15-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral1/memory/4976-7-0x0000000000400000-0x0000000000417000-memory.dmp	UPX
behavioral1/files/0x000900000002440c-8.dat	UPX
behavioral1/memory/3772-10-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/3772-11-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/3772-13-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/3772-15-0x0000000010000000-0x0000000010024000-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	3772	rundll32.exe
9	3772	rundll32.exe
10	3772	rundll32.exe
11	3772	rundll32.exe
30	3772	rundll32.exe
32	3772	rundll32.exe
40	3772	rundll32.exe
45	3772	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000900000002440c-8.dat	acprotect

Deletes itself 1 IoCs

pid	Process
4976	ohzdygw.exe

Executes dropped EXE 1 IoCs

pid	Process
4976	ohzdygw.exe

Loads dropped DLL 1 IoCs

pid	Process
3772	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\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\svwtgib\\fhmhj.dll\",init"	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)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	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)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	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 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000900000002440c-8.dat	upx
behavioral1/memory/3772-10-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/3772-11-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/3772-13-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/3772-15-0x0000000010000000-0x0000000010024000-memory.dmp	upx

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	2026-07-01_93f133592ff4bceaabe584420637d441_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	ohzdygw.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
4648	cmd.exe
2044	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
2044	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3772	rundll32.exe
3772	rundll32.exe
3772	rundll32.exe
3772	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3772	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4824	2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe
4976	ohzdygw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 4648	4824	2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe	84
PID 4648 wrote to memory of 2044	4648	cmd.exe	86
PID 4648 wrote to memory of 4976	4648	cmd.exe	87
PID 4976 wrote to memory of 3772	4976	ohzdygw.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ohzdygw.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4648
- - 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:2044
- - \??\c:\ohzdygw.exe
    c:\ohzdygw.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-01_93f133592ff4bceaabe584420637d441_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4976
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\svwtgib\fhmhj.dll",init c:\ohzdygw.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:3772

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

ohzdygw.exe

Path C:\ohzdygw.exe
Size 128KB
SHA256 dc86992edc472fdd4442b7c3a6c90cb2c0baa5160cb7e23461f06489d8b0b14e
MD5 edba5487be71300bf2ec11fab477e5cd
SHA1 29c7de5716d2f5be672562534fc55b496591b997
SHA512 600f5952c6e038b644bda2da9dbf4a018d085781b343efe7af2e500af7735490f479dfa69539531f33c6aac845d7460e5f55cad744a39b489f31cfa346162a83
SSDEEP 3072:xK4RNx6nb4RoIw/XBSeral6oaE0HGnvXuEOrc0pY:xl6XYeel6GGGVOK
TLSH
T1F2D38C429BB189E5E0111CF4039BBB3483B5988D3B15A763D388DF0EE42DE85DB362D9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

fhmhj.dll

Path \??\c:\svwtgib\fhmhj.dll
Size 46KB
SHA256 b6bc7902da0250f6ca920b35b222f6a0fe62102caf05d2a1722c4d3b225a0a9e
MD5 42fe886bcb6460f7c2a46e21ecac5da6
SHA1 7d9a1c9fe17121cf61444da965f29e974a95ede2
SHA512 3d1a7dc1d9ca8a4376302ba20df584ad59b98e0d3b18b06b22d7f5a455833ce124e412fc1922a3b704dcbafa31987cda3115c9a71dd6299683502cebae33567c
SSDEEP 768:P60NIyOvlPSGxZ00FBsMT0fdB5h3vU7ExCClpoduUglNgLoR/C:P6e4lP5rvz1Vd8H/C
TLSH
T10023F15733A8577BC9E621FA3263BE142B357019CB3A83545CB9B6572C21C8D927930F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3772-10-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3772-11-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3772-13-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3772-15-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/4824-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4824-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4976-7-0x0000000000400000-0x0000000000417000-memory.dmp

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