farfli | 0cffd4a269f34fc3289afbec89f48f51cf0313a996bfc02dc29f311fbd9448de

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
08/06/2026, 14:05

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General

Target
2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe
Size 105KB
Sample260608-rdzssaex2l
SHA256 0cffd4a269f34fc3289afbec89f48f51cf0313a996bfc02dc29f311fbd9448de
MD5 deda0ec6bef2a09b374341c9fab569b1
SHA1 5c7be0ab9212ffad7c314bbfad70b5810085077f
SHA512 928ebfa63f089bee43dbcaa555bf6dd132edf86d9a4d3a39e81bdcd502e974d46f16213b9380fb96709d3760afeadf0037d01b9c2e97cbd1b6aa54bcee5f9fe4
SSDEEP 1536:gWCfpn0RbXfmvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMyws:gWmpn0RbXNxeeJ9w7EPWMyws
TLSH
T177B3C0176BAF04FAE0200D7505BA1B3647BA685A2B2057B7D394ED1DA872DC0EC3D35B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

host123.zz.am:6658
http://23.104.160.115:8890/version.php
http://23.104.160.116:9963/

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 4 IoCs

resource	yara_rule
behavioral2/memory/4972-10-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/4972-9-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/4972-11-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/4972-13-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/4972-10-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4972-9-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4972-11-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4972-13-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 3 IoCs

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

flow	pid	Process
1	4972	rundll32.exe
3	4972	rundll32.exe
4	4972	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	dushy.exe

Loads dropped DLL 1 IoCs

pid	Process
4972	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-1-5-21-226940941-599731907-2645636698-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ssahe\\rnmfs.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
4940	4972	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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dushy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-08_deda0ec6bef2a09b374341c9fab569b1_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
1412	cmd.exe
2884	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
2884	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
984	2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe
2708	dushy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 984 wrote to memory of 1412	984	2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe	80
PID 1412 wrote to memory of 2884	1412	cmd.exe	82
PID 1412 wrote to memory of 2708	1412	cmd.exe	83
PID 2708 wrote to memory of 4972	2708	dushy.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:984
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\dushy.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1412
- - 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:2884
- - \??\c:\dushy.exe
    c:\dushy.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-08_deda0ec6bef2a09b374341c9fab569b1_elex_wannacry.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ssahe\rnmfs.dll",AbortProc c:\dushy.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 use of AdjustPrivilegeToken
      PID:4972
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1616
        5⤵
        Program crash
        
        PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4972 -ip 4972
1⤵
PID:1072

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

dushy.exe

Path C:\dushy.exe
Size 105KB
SHA256 b173ed704778b8a70216b99d67f3d978a5badb3abe4e01c0ba4d2a907f18d858
MD5 c9a4785aff610da5bbf2e64c91b3b8b3
SHA1 494f50b3543a1ba2165fc8042f5b78b11010db34
SHA512 3cf3ed008c7efd9a92ec7cc296a21bf7310c13e3d6d0383bb7d137a1c3bde3c156d52d4d60217fd19961b080ef8d4b84c5a6b56a31e7934ee913da02837526d4
SSDEEP 1536:gWCfpn0RbXfmvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMywF:gWmpn0RbXNxeeJ9w7EPWMywF
TLSH
T1DFB3C0176BAF04F9E0200D7505BA1B3647BA685A2B2457B7D384ED1DA872DC0EC3D35B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rnmfs.dll

Path \??\c:\ssahe\rnmfs.dll
Size 60KB
SHA256 42304221991ff2ea9d6c0252d42b90390caebc312a17126a4b13e9514f2b7d87
MD5 75e08aa9274df390fcdb1df3d0733bd5
SHA1 f3053cc10f33436aa1da7ec82a12ffdaff10ccfb
SHA512 dee8a07ca2142eb2ec1a5ce56af92605bb1c11e89da5d4335aee1098dc73375e422d9c53f201e571ff64b51c5cfa3928b1f26c0a23f4671dfbd91b1355d0e9db
SSDEEP 1536:Itj4HbqT+M0L2J2US62eSBQno/CUVzsxeOPw:ItqeT+M02J25qnLUVzs9w
TLSH
T1D05301286F6D2EDDFA3152B1E0985093FBD98B03043FA24D2544777F7D829631A93BA4
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4972-7-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4972-8-0x0000000001230000-0x0000000001231000-memory.dmp

Download

memory/4972-10-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4972-9-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4972-11-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4972-12-0x0000000001230000-0x0000000001231000-memory.dmp

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memory/4972-13-0x0000000010000000-0x0000000010045000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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