farfli | 2249b2c92bb3d690151c8674de2df64ce1434bb894d591b9c226b5df53d4a59d

Analysis

max time kernel
149s
max time network
149s
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, 22:58

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General

Target
2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe
Size 103KB
Sample260608-2x23csf15v
SHA256 2249b2c92bb3d690151c8674de2df64ce1434bb894d591b9c226b5df53d4a59d
MD5 fea894051137fb817555f4597ac4a6ae
SHA1 869e759043033aebaefe2e37194d84ff1d1fb4d6
SHA512 a8274c792161bf494e88b7d745963462752698e3178bc08ab5f44d6190cbe446aab32837b225ac934d55a78ef9d0fbae69462a867f547bbb8f02484ffe165ff5
SSDEEP 1536:gWCfpn0RbXfmvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMywI:gWmpn0RbXNxeeJ9w7EPWMywI
TLSH
T17FA3BF576BAF04FAD0200D7505BA1B3647BA785A2B205BB7D394ED1DA832DC0EC3D35A
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/1520-9-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/1520-10-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/1520-11-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/1520-13-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/1520-9-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1520-10-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1520-11-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1520-13-0x0000000010000000-0x0000000010045000-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
7	1520	rundll32.exe
18	1520	rundll32.exe
19	1520	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
1700	ltspk.exe

Loads dropped DLL 1 IoCs

pid	Process
1520	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-1-5-21-2824035265-2271499813-2042964211-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\hbmhh\\ksrzuh.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
4984	1520	WerFault.exe	88

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	2026-06-08_fea894051137fb817555f4597ac4a6ae_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	ltspk.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
3708	cmd.exe
3444	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
3444	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1520	rundll32.exe
1520	rundll32.exe
1520	rundll32.exe
1520	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1184	2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe
1700	ltspk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 3708	1184	2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe	84
PID 3708 wrote to memory of 3444	3708	cmd.exe	86
PID 3708 wrote to memory of 1700	3708	cmd.exe	87
PID 1700 wrote to memory of 1520	1700	ltspk.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ltspk.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3708
- - 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:3444
- - \??\c:\ltspk.exe
    c:\ltspk.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-08_fea894051137fb817555f4597ac4a6ae_elex_wannacry.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1700
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\hbmhh\ksrzuh.dll",AbortProc c:\ltspk.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 behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1520
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 1560
        5⤵
        Program crash
        
        PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1520 -ip 1520
1⤵
PID:388

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

ltspk.exe

Path C:\ltspk.exe
Size 103KB
SHA256 1f1a6f3dfc6cb95dbe4dd3d5f58d82ac7a7a462413638341917448317657149d
MD5 010ea8b745b14cccee4cb1f579838053
SHA1 878b1a563056ee3885121b5effa7b4ebabeba596
SHA512 e0aab2da07a70d18875af683b856dda82557c9bcda45b5a1b54fd45879bb6ec3c54bce07f46f88c7f29d1f959169b5bc31c583c0b4dec02b420e19613d3f61cd
SSDEEP 1536:gWCfpn0RbXfmvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMywv:gWmpn0RbXNxeeJ9w7EPWMywv
TLSH
T1F0A3BF576BAF04FAD0200D7505BA1B3647BA785A2B205BB7D394ED1DA832DC0EC3D35A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ksrzuh.dll

Path \??\c:\hbmhh\ksrzuh.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/1520-7-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/1520-8-0x00000000014F0000-0x00000000014F1000-memory.dmp

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memory/1520-9-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/1520-10-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/1520-11-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/1520-12-0x00000000014F0000-0x00000000014F1000-memory.dmp

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memory/1520-13-0x0000000010000000-0x0000000010045000-memory.dmp

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