farfli | bb07d006671b531fa128c8196c7a1deeb3148e6834f15a7bd5e46b8f1dddb572

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
09/08/2026, 19:29

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General

Target
2026-08-09_d13fe5c69179d37ba45bccaf2345979f_elex_wannacry.exe
Size 97KB
Sample260809-x7bwpscn2x
SHA256 bb07d006671b531fa128c8196c7a1deeb3148e6834f15a7bd5e46b8f1dddb572
MD5 d13fe5c69179d37ba45bccaf2345979f
SHA1 9f197326ba39fb23bf50f4778de2a61e26038790
SHA512 fc89917a1c354c2ff67ae7e739831922b500ea02e5d453395f08bccf20d22949b14114dc2aacfec3387eaae1bdf1d7b45c7bf8d957b53216e3468b6ede7c57a1
SSDEEP 3072:eSABNx6vb4RoI4pyjHYLhal01UoPX+hwo6:el69Ml0TE
TLSH
T191A3AE07ABA598D9F1217C70566D373187BFD85E3B1457639348EE4EA433D80EC3628A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution 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/3972-10-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli
behavioral1/memory/3972-11-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli
behavioral1/memory/3972-12-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli
behavioral1/memory/3972-13-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/3972-10-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3972-12-0x0000000010000000-0x0000000010032000-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
5	3972	rundll32.exe
6	3972	rundll32.exe
7	3972	rundll32.exe
11	3972	rundll32.exe
16	3972	rundll32.exe
36	3972	rundll32.exe
43	3972	rundll32.exe
51	3972	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0008000000024594-8.dat	acprotect

Deletes itself 1 IoCs

pid	Process
1168	dxsvp.exe

Executes dropped EXE 1 IoCs

pid	Process
1168	dxsvp.exe

Loads dropped DLL 1 IoCs

pid	Process
3972	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:\\tngbi\\ahkxsxggw.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)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	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

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
2224	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-09_d13fe5c69179d37ba45bccaf2345979f_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	dxsvp.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
2224	cmd.exe
3508	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
3508	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3972	rundll32.exe
3972	rundll32.exe
3972	rundll32.exe
3972	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2872	2026-08-09_d13fe5c69179d37ba45bccaf2345979f_elex_wannacry.exe
1168	dxsvp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2224	2872	2026-08-09_d13fe5c69179d37ba45bccaf2345979f_elex_wannacry.exe	85
PID 2224 wrote to memory of 3508	2224	cmd.exe	87
PID 2224 wrote to memory of 1168	2224	cmd.exe	88
PID 1168 wrote to memory of 3972	1168	dxsvp.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-09_d13fe5c69179d37ba45bccaf2345979f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_d13fe5c69179d37ba45bccaf2345979f_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\dxsvp.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_d13fe5c69179d37ba45bccaf2345979f_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:2224
- - 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:3508
- - \??\c:\dxsvp.exe
    c:\dxsvp.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_d13fe5c69179d37ba45bccaf2345979f_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1168
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\tngbi\ahkxsxggw.dll",DoVirusScan c:\dxsvp.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:3972

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

dxsvp.exe

Path C:\dxsvp.exe
Size 98KB
SHA256 bb0122560fe4a7e3714ed4fa8e59bb31e2b6591a48836e103334db285aee51c5
MD5 4114aaccf29b0ef4714242a0688f781d
SHA1 7f99c92f563849ff3159dcba69c91ba10b97b7ea
SHA512 fc9581eec5a58d6062dd9bb7b9d4c7f1beff4f0d96d14a70340c05fc151b2e9ed7343815341825bbda9b240769de3e59dc277edb179ab66476b5e3c1ff2ce8a1
SSDEEP 3072:eSABNx6vb4RoI4pyjHYLhal01UoPX+hwo6U:el69Ml0TEt
TLSH
T1EAA3AE03ABA599D9F1217C70566D373187BED86E3B1457639348EF4EA433D80EC3628A
MD5 SHA1 SHA512 SSDEEP TLSH

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ahkxsxggw.dll

Path \??\c:\tngbi\ahkxsxggw.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/1168-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2872-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2872-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3972-10-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3972-11-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/3972-12-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3972-13-0x0000000010001000-0x0000000010021000-memory.dmp

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