farfli | ff329a142234faaefd85454351ce7eb3833f68cd0ba1365955b12bf4e043033c

Analysis

max time kernel
149s
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
08/07/2026, 22:25

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General

Target
2026-07-08_6b9c1499079b21ac897b668a684232e9_elex_wannacry.exe
Size 368KB
Sample260708-2cdt2aay9v
SHA256 ff329a142234faaefd85454351ce7eb3833f68cd0ba1365955b12bf4e043033c
MD5 6b9c1499079b21ac897b668a684232e9
SHA1 2ffe0081308623744822512e01b76060c216d690
SHA512 73380e04fd1376046f63a9f5bcaa8d67fe9a156db32bde231d9b1426148def9cc3352d4d0bb11c5b3789c9b5994067b127a0e76529e4b2564e3e1e0ddb9e071a
SSDEEP 6144:lpFbYirO/Vo8wjOm6JMRPzyZCJeNnTImk9dKacFK8Czj8YT4kFa9:FcirO2PE2QC00me2VCzYYT2
TLSH
T1D784DF1272D048F6E4853633CE76BE70E3E9D4AC5E32DB775F98460D1E35A0992222AD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery 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
behavioral1/memory/1356-16-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli
behavioral1/memory/1356-19-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli
behavioral1/memory/1356-22-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/1356-16-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1356-19-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1356-22-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 IoCs

pid	Process
2484	qjhuwd.exe

Executes dropped EXE 2 IoCs

pid	Process
2484	qjhuwd.exe
1356	xvgzirudc.exe

Loads dropped DLL 1 IoCs

pid	Process
1356	xvgzirudc.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\Depend = "c:\\Program Files\\oosch\\xvgzirudc.exe \"c:\\Program Files\\oosch\\xvgzirudc.dll\",Compliance"	xvgzirudc.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)	\??\v:	xvgzirudc.exe
File opened (read-only)	\??\a:	xvgzirudc.exe
File opened (read-only)	\??\l:	xvgzirudc.exe
File opened (read-only)	\??\q:	xvgzirudc.exe
File opened (read-only)	\??\z:	xvgzirudc.exe
File opened (read-only)	\??\e:	xvgzirudc.exe
File opened (read-only)	\??\h:	xvgzirudc.exe
File opened (read-only)	\??\j:	xvgzirudc.exe
File opened (read-only)	\??\k:	xvgzirudc.exe
File opened (read-only)	\??\m:	xvgzirudc.exe
File opened (read-only)	\??\o:	xvgzirudc.exe
File opened (read-only)	\??\r:	xvgzirudc.exe
File opened (read-only)	\??\s:	xvgzirudc.exe
File opened (read-only)	\??\g:	xvgzirudc.exe
File opened (read-only)	\??\i:	xvgzirudc.exe
File opened (read-only)	\??\n:	xvgzirudc.exe
File opened (read-only)	\??\p:	xvgzirudc.exe
File opened (read-only)	\??\u:	xvgzirudc.exe
File opened (read-only)	\??\w:	xvgzirudc.exe
File opened (read-only)	\??\x:	xvgzirudc.exe
File opened (read-only)	\??\y:	xvgzirudc.exe
File opened (read-only)	\??\b:	xvgzirudc.exe
File opened (read-only)	\??\t:	xvgzirudc.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	xvgzirudc.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\oosch	qjhuwd.exe
File created	\??\c:\Program Files\oosch\xvgzirudc.dll	qjhuwd.exe
File created	\??\c:\Program Files\oosch\xvgzirudc.exe	qjhuwd.exe
File opened for modification	\??\c:\Program Files\oosch\xvgzirudc.exe	qjhuwd.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	2026-07-08_6b9c1499079b21ac897b668a684232e9_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	qjhuwd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xvgzirudc.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
4644	cmd.exe
1800	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	xvgzirudc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	xvgzirudc.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1800	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1356	xvgzirudc.exe
1356	xvgzirudc.exe
1356	xvgzirudc.exe
1356	xvgzirudc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1356	xvgzirudc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
464	2026-07-08_6b9c1499079b21ac897b668a684232e9_elex_wannacry.exe
2484	qjhuwd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 4644	464	2026-07-08_6b9c1499079b21ac897b668a684232e9_elex_wannacry.exe	85
PID 4644 wrote to memory of 1800	4644	cmd.exe	87
PID 4644 wrote to memory of 2484	4644	cmd.exe	88
PID 2484 wrote to memory of 1356	2484	qjhuwd.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-08_6b9c1499079b21ac897b668a684232e9_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-08_6b9c1499079b21ac897b668a684232e9_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:464
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qjhuwd.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-08_6b9c1499079b21ac897b668a684232e9_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4644
- - 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:1800
- - C:\Users\Admin\AppData\Local\Temp\qjhuwd.exe
    C:\Users\Admin\AppData\Local\Temp\\qjhuwd.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-08_6b9c1499079b21ac897b668a684232e9_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:2484
  - - \??\c:\Program Files\oosch\xvgzirudc.exe
      "c:\Program Files\oosch\xvgzirudc.exe" "c:\Program Files\oosch\xvgzirudc.dll",Compliance C:\Users\Admin\AppData\Local\Temp\qjhuwd.exe
      4⤵
      Executes dropped EXE
      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:1356

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

Replay Monitor

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Downloads

xvgzirudc.exe

Path C:\Program Files\oosch\xvgzirudc.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qjhuwd.exe

Path C:\Users\Admin\AppData\Local\Temp\qjhuwd.exe
Size 368KB
SHA256 4439aed678a0d0a5a45034e6eb0329a6e857259e60a96f1e72c0c4eab6c8310a
MD5 6d45d0a93aea20800c18153abb46f60c
SHA1 2c05dcf6590ebed5b6db5f75c38fbf360dd06baf
SHA512 efa9716ca0bd0f485d4c68af509ea679203dae54762788480c4c4ae3746478d006821d37e26b8ef4035939c33b619b62d6f7bc27fe9582227e7849396b1de181
SSDEEP 6144:lpFbYirO/Vo8wjOm6JMRPzyZCJeNnTImk9dKacFK8Czj8YT4kFa96:FcirO2PE2QC00me2VCzYYT2E
TLSH
T1C684DF1272D048F6E4853633CE76BE70E3F9D4AC5E32DB775F98460D1E25A0992222AD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

xvgzirudc.dll

Path \??\c:\Program Files\oosch\xvgzirudc.dll
Size 179KB
SHA256 96ddf7111d811ec97b057162680acd20c9451b5fb6ff1a32f5b8e7e14ec0e058
MD5 ed43a9e8c1f27fdb28fe2380b617023e
SHA1 aa0706273cb30ca633ad27a532849f38e51f7610
SHA512 cef4c598005e07daa9d44b48a66f073a33083ae1fe02732a04c5276175572f47e66b41ff115dc38854792fe76d80638c5aa20d9ab98cf873ea2d1418c6eebce5
SSDEEP 3072:EC5Wpfs98nVCWdKycHtld8VBt7NUalwXH9RqYzJabTYd3KIdj6+uFdi98pvO0hfg:ECOfQ8nVcycHrd8VBtBUa4HfRzJabT8b
TLSH
T1E30423FABE82C652C84F6776B6AF244437A901D91BC5E0A56F0482CE39C3135E67DE48
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/464-0-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/464-2-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/1356-14-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/1356-15-0x00000000008C0000-0x00000000008C1000-memory.dmp

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memory/1356-16-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/1356-17-0x00000000008C0000-0x00000000008C1000-memory.dmp

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memory/1356-19-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/1356-22-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/2484-11-0x0000000000400000-0x0000000000458000-memory.dmp

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