farfli | 672ee45122b7e34756e10fa3b049bdfd4bf3beb9d592e2ecc55c14c9ecd79417

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
29/06/2026, 04:32

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General

Target
2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe
Size 96KB
Sample260629-e6grfsc17y
SHA256 672ee45122b7e34756e10fa3b049bdfd4bf3beb9d592e2ecc55c14c9ecd79417
MD5 9f87795a1ec967ed4739a111c2992053
SHA1 7c2d2f65b3daac4183ce001d8ed336d0b6a08778
SHA512 e8b09ef57d427d9fcf8cb01ad675e060c308306e5ca56a4e04be8c2cf75c9d9a8a228797bcb2d148ddb00ba00205124fc4720a065342b007e362580e33802d6a
SSDEEP 3072:eSABNx6vb4RoI4pyjHYLhal01UoPX+hwo6:el69Ml0TE
TLSH
T1EBA3BE179BA589C9F1216C30562E773087BFA85D3F1457639348EE4EE437D81EC3628A
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 4 IoCs

resource	yara_rule
behavioral1/memory/2060-10-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli
behavioral1/memory/2060-11-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli
behavioral1/memory/2060-12-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli
behavioral1/memory/2060-13-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/2060-10-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2060-12-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
14	2060	rundll32.exe
15	2060	rundll32.exe
16	2060	rundll32.exe
22	2060	rundll32.exe
33	2060	rundll32.exe
42	2060	rundll32.exe
48	2060	rundll32.exe
50	2060	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000300000001e6e7-8.dat	acprotect

Deletes itself 1 IoCs

pid	Process
4420	uhjus.exe

Executes dropped EXE 1 IoCs

pid	Process
4420	uhjus.exe

Loads dropped DLL 1 IoCs

pid	Process
2060	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-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\qdvas\\xrtxwzpg.dll\",DoVirusScan"	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)	\??\i:	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	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)	\??\e:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\g:	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

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uhjus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.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
5008	cmd.exe
4140	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
4140	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2060	rundll32.exe
2060	rundll32.exe
2060	rundll32.exe
2060	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2060	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4932	2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe
4420	uhjus.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 5008	4932	2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe	87
PID 5008 wrote to memory of 4140	5008	cmd.exe	89
PID 5008 wrote to memory of 4420	5008	cmd.exe	90
PID 4420 wrote to memory of 2060	4420	uhjus.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\uhjus.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5008
- - 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:4140
- - \??\c:\uhjus.exe
    c:\uhjus.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-27_9f87795a1ec967ed4739a111c2992053_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4420
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\qdvas\xrtxwzpg.dll",DoVirusScan c:\uhjus.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:2060

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

uhjus.exe

Path C:\uhjus.exe
Size 97KB
SHA256 6e681ca53648afc6d43df8cb175a21eee9bb7bac3bee880ef3f779c0f654ee82
MD5 9b9b66fe81bcd5af690b7e497091b8a6
SHA1 1460ce67e9a4a2925c8c5ffa5a4595ab0d1c8220
SHA512 cc2ee9c6ef0d637a3908731482841f09d038f885ffe2c206f847a835af34ad1fb86dd5f10cdb5907a602b5bb5409c6ce3d7231c91c7a91e7837180e74a6e7692
SSDEEP 3072:eSABNx6vb4RoI4pyjHYLhal01UoPX+hwo6j:el69Ml0TEC
TLSH
T178A3AE179BA589C9F1217C30566E373087BEA85D3F1457639348EE4EE837D81EC3628A
MD5 SHA1 SHA512 SSDEEP TLSH

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xrtxwzpg.dll

Path \??\c:\qdvas\xrtxwzpg.dll
Size 50KB
SHA256 b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525
MD5 cbfc06794d16ace6adf42210183fc1b9
SHA1 74fc68a2af225b0aca954b3684940747511013c5
SHA512 181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9
SSDEEP 768:Z+arYIR3u5v4bGwCl56LNQQe5JBtGf1oTYtx/qQvorLOpqPJ/UP2Gy+OIudD05:ZPrG57TzDxJS6Etx/Zv2OwSy+OIOD05
TLSH
T15733F1ACE2F064F5D0AF6B345952225CF5C26F238D3190DB4A8214BF3C32A5B5B5E721
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2060-10-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/2060-11-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/2060-12-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/2060-13-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/4420-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4932-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4932-2-0x0000000000400000-0x0000000000417000-memory.dmp

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