farfli | aa843f5dd754f0948e0b430552332d36bf8a653cde675236bafed2e1e3f81abd

Analysis

max time kernel
149s
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
10/07/2026, 21:57

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General

Target
2026-07-10_cbce4250c39a1722086d7ed21829d1bf_elex_wannacry.exe
Size 585KB
Sample260710-1vblysbx4l
SHA256 aa843f5dd754f0948e0b430552332d36bf8a653cde675236bafed2e1e3f81abd
MD5 cbce4250c39a1722086d7ed21829d1bf
SHA1 b6e6571f1fe16374decc7f0091e5fce78b692af0
SHA512 89f3c1d6a5aca9931ed66c008a1c7e1752011f792a3d5c530205be915a9e2e186c88d5a5d4c131066bfcfaad5fd0d9eb8a50a50c4e13356b6669926350a9a4f0
SSDEEP 6144:WAMejnmtYZnAmGJ/8uADNFlbF/joovD6fkjOmfPWq6da0npNu:HMimtuAmGJ/85BbFb976s3Wq6d7npU
TLSH
T168D41242F592887AD43DDB34C75B8B35A3D399707A064262838DAC9FADB9F0787053D8
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 2 IoCs

resource	yara_rule
behavioral2/memory/4256-10-0x0000000010000000-0x0000000010090000-memory.dmp	family_farfli
behavioral2/memory/4256-12-0x0000000010000000-0x0000000010090000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/4256-10-0x0000000010000000-0x0000000010090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4256-12-0x0000000010000000-0x0000000010090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 7 IoCs

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

flow	pid	Process
1	4256	rundll32.exe
4	4256	rundll32.exe
5	4256	rundll32.exe
6	4256	rundll32.exe
8	4256	rundll32.exe
9	4256	rundll32.exe
11	4256	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4368	hovmdwwx.exe

Executes dropped EXE 1 IoCs

pid	Process
4368	hovmdwwx.exe

Loads dropped DLL 1 IoCs

pid	Process
4256	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-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Meture = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\eloalfyn\\vfzyc.dll\",Decompress"	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)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\w:	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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4256	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\eloalfyn	hovmdwwx.exe
File created	\??\c:\Program Files\eloalfyn\vfzyc.dll	hovmdwwx.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	2026-07-10_cbce4250c39a1722086d7ed21829d1bf_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	hovmdwwx.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
3540	cmd.exe
5452	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
5452	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe
4256	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4256	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2668	2026-07-10_cbce4250c39a1722086d7ed21829d1bf_elex_wannacry.exe
4368	hovmdwwx.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 3540	2668	2026-07-10_cbce4250c39a1722086d7ed21829d1bf_elex_wannacry.exe	88
PID 3540 wrote to memory of 5452	3540	cmd.exe	90
PID 3540 wrote to memory of 4368	3540	cmd.exe	91
PID 4368 wrote to memory of 4256	4368	hovmdwwx.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-07-10_cbce4250c39a1722086d7ed21829d1bf_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-10_cbce4250c39a1722086d7ed21829d1bf_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hovmdwwx.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-10_cbce4250c39a1722086d7ed21829d1bf_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3540
- - 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:5452
- - C:\Users\Admin\AppData\Local\Temp\hovmdwwx.exe
    C:\Users\Admin\AppData\Local\Temp\\hovmdwwx.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-10_cbce4250c39a1722086d7ed21829d1bf_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:4368
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\eloalfyn\vfzyc.dll",Decompress C:\Users\Admin\AppData\Local\Temp\hovmdwwx.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)
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4256

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

hovmdwwx.exe

Path C:\Users\Admin\AppData\Local\Temp\hovmdwwx.exe
Size 585KB
SHA256 7d979cadb6f47dddf825f6a33319b92234f61beafc1d907fd51836f461bad968
MD5 71ac9158b6c87b775f75a16237fd44ac
SHA1 051d2139bb8e45e527623f590ec51e3d273104cc
SHA512 b44b0cd26b19fd50076252a8fb1a160b4aea9f676859c4ca28fbb2370eebc6ca2f9bf83a23dda12466f45ee4284670948653b91186ebd10057e4cf893c72ae82
SSDEEP 6144:WAMejnmtYZnAmGJ/8uADNFlbF/joovD6fkjOmfPWq6da0npNuo:HMimtuAmGJ/85BbFb976s3Wq6d7npUo
TLSH
T191D41242F592887AD43DDB34C75B8B35A3D299707A064262838DAC9FADB9F0787053D8
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

vfzyc.dll

Path \??\c:\Program Files\eloalfyn\vfzyc.dll
Size 266KB
SHA256 fd976ad5d73abd5ace79e4b25fbd806bbc8e165798c6df02409fc9aad88354c8
MD5 533c1016de4a2554dbe30b278370426f
SHA1 f9f500eae6d02b772e3c1d3560b9c00636b6c217
SHA512 5662a39719d47212fa9d5ccc9b1b36189afa4fb3eeeab47074037d9ad43ff7624d11106a06074f805ec6f74bb84cf7e1c3e36bf01d551199795d106b25810d20
SSDEEP 6144:/hJkmMlGAzciA4nhT5ai7Ohk/0BFen/xmi:/hJEQloHOXM4i
TLSH
T1D24423911B3E34B3FC5F2B327A77E56FFB7422342862899FC78F522165A3650101A792
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2668-0-0x0000000000400000-0x0000000000494000-memory.dmp

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memory/2668-2-0x0000000000400000-0x0000000000494000-memory.dmp

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memory/4256-9-0x0000000010000000-0x0000000010090000-memory.dmp

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memory/4256-10-0x0000000010000000-0x0000000010090000-memory.dmp

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memory/4256-12-0x0000000010000000-0x0000000010090000-memory.dmp

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memory/4368-6-0x0000000000400000-0x0000000000494000-memory.dmp

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