farfli | 447223affe7fde5c3d399d1a94ba4438fb7c8351057003cf1a82e5b2101b5390

Analysis

max time kernel
148s
max time network
136s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/11/2026, 02:00

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General

Target
2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_wannacry.exe
Size 187KB
Sample261108-cfccyatv2l
SHA256 447223affe7fde5c3d399d1a94ba4438fb7c8351057003cf1a82e5b2101b5390
MD5 f7b3f1a5741ecd9cbc7861fac2aa9b02
SHA1 bcc114dd9783b39f26fb77269dbfc6f9d74eceef
SHA512 1d11276530db0a27fef88f34a70a297bf32bcbae47bc6099ef19a95d83de33fb3005dae75b0dee57ca478ca7ffabf0eb0941d78b2ab1a4ea2e66ef901164fa6d
SSDEEP 1536:tli0XaKndOdmqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYl2:zi0XaKndNqY31L2WXb0E86mwYli99
TLSH
T1E0147C17D7A58582E3B24F7042A35B63AE72FC245BED8B5F7B80635E5838B00ED19364
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor bootkit defense_evasion discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

67.229.62.194:3201
http://67.229.62.197:805/index.php
http://67.229.62.198:803/

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Detects Farfli Backdoor 7 IoCs

resource	yara_rule
behavioral2/memory/1528-18-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/1528-19-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/1528-17-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/1528-20-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/1528-22-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/1528-23-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/1528-24-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral2/memory/1528-18-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1528-19-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1528-17-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1528-20-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1528-22-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1528-23-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1528-24-0x0000000010000000-0x0000000010036000-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
8	1528	rundll32.exe
10	1528	rundll32.exe
11	1528	rundll32.exe
12	1528	rundll32.exe
13	1528	rundll32.exe
14	1528	rundll32.exe
17	1528	rundll32.exe
18	1528	rundll32.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000e00000001c558-14.dat	aspack_v212_v242

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4984	bmczv.exe

Executes dropped EXE 1 IoCs

pid	Process
4984	bmczv.exe

Loads dropped DLL 1 IoCs

pid	Process
1528	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-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\hpuay\\ziwjj.dll\",AbortProc"	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)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\w:	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
1864	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	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	2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_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	bmczv.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
1864	cmd.exe
3268	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
3268	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1528	rundll32.exe
1528	rundll32.exe
1528	rundll32.exe
1528	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
6016	2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_wannacry.exe
4984	bmczv.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 6016 wrote to memory of 1864	6016	2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_wannacry.exe	89
PID 1864 wrote to memory of 3268	1864	cmd.exe	91
PID 1864 wrote to memory of 4984	1864	cmd.exe	92
PID 4984 wrote to memory of 1528	4984	bmczv.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6016
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\bmczv.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_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:1864
- - 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:3268
- - \??\c:\bmczv.exe
    c:\bmczv.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-07_f7b3f1a5741ecd9cbc7861fac2aa9b02_elex_strictor_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4984
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\hpuay\ziwjj.dll",AbortProc c:\bmczv.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)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1528

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

Indicator Removal

T1070

File Deletion

T1070.004

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

bmczv.exe

Path \??\c:\bmczv.exe
Size 187KB
SHA256 443def21bf597226cdc10aa103186a08a380d3a4a57fbcb3501d07bd7851364c
MD5 7cc5488b6043cdc84a22ba8add1a059b
SHA1 b4ae3267b042184e4d33822c4a90826efae47173
SHA512 ff16ed9308fd99fe95e0a8ff3211c7c14e8c1377a731a2aa60338686b4e7d1782e74dc5a42b86b1d61c071485b66630978a9cac8731b274dbe9f7f3dee00aaa3
SSDEEP 1536:tli0XaKndOdmqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYle:zi0XaKndNqY31L2WXb0E86mwYli9l
TLSH
T10C146C17D7A58582E3A24F7042A35B63AE72FC245BED8B5F7B80635E5838F00ED19364
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ziwjj.dll

Path \??\c:\hpuay\ziwjj.dll
Size 87KB
SHA256 37ab4b7ee8f6b61c3854af4ed4676fd0d69f0260fb1296ad75e57aa08e1eeb03
MD5 a2c2137ff7abf6be6bcae4252c394a69
SHA1 07b402104df563f9486c2eef975fee70f65a5145
SHA512 5d05ed7c55bee8f41502acaea3d41fcf4421ad641d43f0b97b4cdc8fe584983da7712c561a53b708e88391df7929914746115700ae733155418693bcec6989a9
SSDEEP 1536:Z9f99U7uHXjIdqsxng0ZsiG4gYV82mwx86aY1Enb0jv4WDBT:bfTVHXEdqRYu2mwxB11EbiT1
TLSH
T10B93E08EBFD80A7FC6BF123244A7D636D2723C117B199D5231DE8E1F38561096B0A768
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1528-16-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-24-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-23-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-22-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-20-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-17-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-19-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/1528-18-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4984-13-0x0000000000400000-0x0000000000429000-memory.dmp

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memory/4984-11-0x0000000000400000-0x0000000000429000-memory.dmp

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memory/6016-0-0x0000000000400000-0x0000000000429000-memory.dmp

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memory/6016-6-0x0000000000405000-0x0000000000426000-memory.dmp

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memory/6016-5-0x0000000000400000-0x0000000000429000-memory.dmp

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memory/6016-3-0x0000000000405000-0x0000000000426000-memory.dmp

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memory/6016-1-0x0000000000400000-0x0000000000429000-memory.dmp

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memory/6016-2-0x0000000000400000-0x0000000000429000-memory.dmp

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