farfli | f9036dfb4e7726c5ee2e8584f8ce6ddd45d4897fca18f663f5913c9d473ed8a4

Analysis

max time kernel
149s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
16/04/2026, 09:43

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General

Target
2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe
Size 152KB
Sample260416-lp8beafs8t
SHA256 f9036dfb4e7726c5ee2e8584f8ce6ddd45d4897fca18f663f5913c9d473ed8a4
MD5 0a9b098051f1b6f3103dc9d07c648fbe
SHA1 8550eb59fb42a078200b0322b782ecbee9906aef
SHA512 3db3dddf2575b1aeaf85c264cb21f88273b200042b627e6b2fc25f93b5157526b433c97cf43d8fee60e062b9a0ffe70002a799ea7e4c8dc060c0eb45a464adab
SSDEEP 1536:fli0XaKn5gYkqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYUi:di0XaKncqY31L2WXb0E86mwYUi
TLSH
T1EFE37C26E7E58542E3B28F7046A35B63AF72FC145AED8B4F7B40A75D4838B00ED19364
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor bootkit discovery 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 6 IoCs

resource	yara_rule
behavioral2/memory/4900-15-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4900-14-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4900-13-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4900-16-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4900-18-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4900-19-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 6 IoCs

resource	yara_rule
behavioral2/memory/4900-15-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4900-14-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4900-13-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4900-16-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4900-18-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4900-19-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
1	4900	rundll32.exe
3	4900	rundll32.exe
4	4900	rundll32.exe
5	4900	rundll32.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x001a00000002b49f-10.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2208	mxdvbi.exe

Executes dropped EXE 1 IoCs

pid	Process
2208	mxdvbi.exe

Loads dropped DLL 1 IoCs

pid	Process
4900	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-1-5-21-2122505878-652277452-2375749442-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\amegiv\\qxueh.dll\",AbortProc"	rundll32.exe

Enumerates connected drives 3 TTPs 2 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)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1840	4900	WerFault.exe	84

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	2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_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	mxdvbi.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
2108	cmd.exe
3692	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3692	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4900	rundll32.exe
4900	rundll32.exe
4900	rundll32.exe
4900	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4900	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
836	2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe
2208	mxdvbi.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 2108	836	2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe	80
PID 2108 wrote to memory of 3692	2108	cmd.exe	82
PID 2108 wrote to memory of 2208	2108	cmd.exe	83
PID 2208 wrote to memory of 4900	2208	mxdvbi.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\mxdvbi.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2108
- - 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:3692
- - \??\c:\mxdvbi.exe
    c:\mxdvbi.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-16_0a9b098051f1b6f3103dc9d07c648fbe_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2208
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\amegiv\qxueh.dll",AbortProc c:\mxdvbi.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
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4900
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 1572
        5⤵
        Program crash
        
        PID:1840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4900 -ip 4900
1⤵
PID:3416

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

qxueh.dll

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

Submit Download

mxdvbi.exe

Path \??\c:\mxdvbi.exe
Size 152KB
SHA256 e3ff9fc1174cf8852ef9bd18532917b7ac769d68eaa308ef06499c04d8066e9c
MD5 ccb1d92502d969bad3cf9d5a84a62d03
SHA1 36a5f8b91b7371a8c626ad5bfe43194ee3f5177f
SHA512 97c638c480f06efc5a88f8f8e6c503ce89bf5de251b30e6e826d5e4b0ebc12530df61518ed227ef604ba25bfeeed2ffec950ab7e36d39a95da0a21618cd16b3e
SSDEEP 1536:fli0XaKn5gYkqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYUX:di0XaKncqY31L2WXb0E86mwYUis
TLSH
T1AAE37C26E7E58542E3B28F7046A35B63AF72FC145AED8B4F7B40A75D4838B00ED19364
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/836-1-0x0000000000405000-0x0000000000406000-memory.dmp

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memory/836-3-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/836-0-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/2208-7-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/2208-9-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/4900-12-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4900-15-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4900-14-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4900-13-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4900-16-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4900-18-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4900-19-0x0000000010000000-0x0000000010036000-memory.dmp

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