farfli | f90555ca6ddd6f49245fa2d48630a56233032e38e691817f6358329473edbaa3

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/09/2026, 10:21

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General

Target
2026-09-30_76ba0f18b0e652447ca41201b0d002b4_elex_wannacry.exe
Size 360KB
Sample260930-md6twaw13q
SHA256 f90555ca6ddd6f49245fa2d48630a56233032e38e691817f6358329473edbaa3
MD5 76ba0f18b0e652447ca41201b0d002b4
SHA1 1aaea9a41cb82be846b4e74e1f59ba8b7d4954aa
SHA512 1abde99627685747f34e96890e34c67bc0d1a59a10f6cdad27502cbe212991b198348b9c01a839ea101dbb8ec575afffb80df0e6e2f5cc40512fcd2797738e3d
SSDEEP 6144:lpFbYirO/Vo8wjOm6JMRPzyZCJeNnTImk9dKacFK8Czj8YT4kFa9:FcirO2PE2QC00me2VCzYYT2
TLSH
T1EB74DF1372D048B6E4853633CD76BEB4E3F9D1AC5E32DA775F98460C1E36A0993122AD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

107.163.56.251:6658
http://107.163.56.240:18963/main.php
http://107.163.56.241:18530/

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 3 IoCs

resource	yara_rule
behavioral2/memory/4148-10-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli
behavioral2/memory/4148-12-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli
behavioral2/memory/4148-17-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/4148-10-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4148-12-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4148-17-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3172	jwdupprzr.exe

Executes dropped EXE 2 IoCs

pid	Process
3172	jwdupprzr.exe
4148	iojpfdqb.exe

Loads dropped DLL 1 IoCs

pid	Process
4148	iojpfdqb.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-1-5-21-2251218687-1689653882-3767565116-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\valfn\\iojpfdqb.exe \"c:\\Program Files\\valfn\\iojpfdqb.dll\",Compliance"	iojpfdqb.exe

Enumerates connected drives 3 TTPs 24 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
	\??\f:\	iojpfdqb.exe
File opened (read-only)	\??\l:	iojpfdqb.exe
File opened (read-only)	\??\n:	iojpfdqb.exe
File opened (read-only)	\??\s:	iojpfdqb.exe
File opened (read-only)	\??\u:	iojpfdqb.exe
File opened (read-only)	\??\w:	iojpfdqb.exe
File opened (read-only)	\??\h:	iojpfdqb.exe
File opened (read-only)	\??\j:	iojpfdqb.exe
File opened (read-only)	\??\k:	iojpfdqb.exe
File opened (read-only)	\??\q:	iojpfdqb.exe
File opened (read-only)	\??\x:	iojpfdqb.exe
File opened (read-only)	\??\z:	iojpfdqb.exe
File opened (read-only)	\??\b:	iojpfdqb.exe
File opened (read-only)	\??\g:	iojpfdqb.exe
File opened (read-only)	\??\i:	iojpfdqb.exe
File opened (read-only)	\??\o:	iojpfdqb.exe
File opened (read-only)	\??\r:	iojpfdqb.exe
File opened (read-only)	\??\t:	iojpfdqb.exe
File opened (read-only)	\??\v:	iojpfdqb.exe
File opened (read-only)	\??\y:	iojpfdqb.exe
File opened (read-only)	\??\m:	iojpfdqb.exe
File opened (read-only)	\??\p:	iojpfdqb.exe
File opened (read-only)	\??\a:	iojpfdqb.exe
File opened (read-only)	\??\d:	iojpfdqb.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	iojpfdqb.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\valfn	jwdupprzr.exe
File created	\??\c:\Program Files\valfn\iojpfdqb.dll	jwdupprzr.exe
File created	\??\c:\Program Files\valfn\iojpfdqb.exe	jwdupprzr.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
4384	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	iojpfdqb.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	iojpfdqb.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jwdupprzr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iojpfdqb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-30_76ba0f18b0e652447ca41201b0d002b4_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
4384	cmd.exe
3860	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	iojpfdqb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	iojpfdqb.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3860	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4148	iojpfdqb.exe
4148	iojpfdqb.exe
4148	iojpfdqb.exe
4148	iojpfdqb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4148	iojpfdqb.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3348	2026-09-30_76ba0f18b0e652447ca41201b0d002b4_elex_wannacry.exe
3172	jwdupprzr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3348 wrote to memory of 4384	3348	2026-09-30_76ba0f18b0e652447ca41201b0d002b4_elex_wannacry.exe	89
PID 4384 wrote to memory of 3860	4384	cmd.exe	91
PID 4384 wrote to memory of 3172	4384	cmd.exe	92
PID 3172 wrote to memory of 4148	3172	jwdupprzr.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-09-30_76ba0f18b0e652447ca41201b0d002b4_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-30_76ba0f18b0e652447ca41201b0d002b4_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jwdupprzr.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-30_76ba0f18b0e652447ca41201b0d002b4_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:4384
- - 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:3860
- - C:\Users\Admin\AppData\Local\Temp\jwdupprzr.exe
    C:\Users\Admin\AppData\Local\Temp\\jwdupprzr.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-30_76ba0f18b0e652447ca41201b0d002b4_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:3172
  - - \??\c:\Program Files\valfn\iojpfdqb.exe
      "c:\Program Files\valfn\iojpfdqb.exe" "c:\Program Files\valfn\iojpfdqb.dll",Compliance C:\Users\Admin\AppData\Local\Temp\jwdupprzr.exe
      4⤵
      Executes dropped EXE
      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:4148

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

iojpfdqb.exe

Path C:\Program Files\valfn\iojpfdqb.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

jwdupprzr.exe

Path C:\Users\Admin\AppData\Local\Temp\jwdupprzr.exe
Size 360KB
SHA256 99ee01aeb5407c402e20b8ebe1f6b660f02ed5146adbdb1452d3a83968cac20e
MD5 18fa5795d33510b3ff181ed28551c3ac
SHA1 50830a54baa03e36f726be56250390905a81e6e6
SHA512 f8e0371c52372b2194c5a2043ffd82d4189be48b4f6ec0e8f16f2320b39cace439b8f238bce8248b8efc129496f2b9ca967f39acd8abb4a0105f223cfff31dea
SSDEEP 6144:lpFbYirO/Vo8wjOm6JMRPzyZCJeNnTImk9dKacFK8Czj8YT4kFa9:FcirO2PE2QC00me2VCzYYT2
TLSH
T10474DF1372D048B6E4853633CD76BEB4E3F9D1AC5E32DA775F98460C1E36A0993122AD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

iojpfdqb.dll

Path \??\c:\Program Files\valfn\iojpfdqb.dll
Size 179KB
SHA256 fcc9e3c8257af1a1f827f016735c82c7a7f183207df7ab5351f0747b3d76d20a
MD5 83cde33492f746f5ec2b0d3715ff6bc9
SHA1 6641f3161e56c685dca8a20ae8f485d103b5bdae
SHA512 0d43d53926f5175deb2e6df1dda16d157bf368f268c347ec722463dfb3a6ef2871a9d0f12baeb53f085aab9f05684f4714bae1eb2c83016c24ff8662adc7b4f7
SSDEEP 3072:EC5Wpfs98nVCWdKycHtld8VBt7NUalwXH9RqYzJabTYd3KIdj6+uFdi98pvO0hfS:ECOfQ8nVcycHrd8VBtBUa4HfRzJabT8/
TLSH
T15C0423EABE42C652C84F6776BAAF244437AD05D51BC1E0A56F0482CE39C3135E67DE48
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3172-7-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/3348-0-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/3348-2-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/4148-11-0x0000000001660000-0x0000000001661000-memory.dmp

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memory/4148-10-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/4148-12-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/4148-17-0x0000000010000000-0x000000001004F000-memory.dmp

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