farfli | 7fe1ba39f12d907fd58187814ee0e2c4146b3328456f791bb1a5ca16ea4bf90c

Analysis

max time kernel
148s
max time network
136s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
11/11/2026, 19:26

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General

Target
2026-11-10_d0a0813255641af988716edc101e91a5_elex_wannacry.exe
Size 164KB
Sample261111-x5p1js1thw
SHA256 7fe1ba39f12d907fd58187814ee0e2c4146b3328456f791bb1a5ca16ea4bf90c
MD5 d0a0813255641af988716edc101e91a5
SHA1 d382a9c613a59785caea58235ec308ac124b60a7
SHA512 98c0dc825b93d624ed3b963fca3a148cd25752ee04e54df8acc7cacc431058a9ac10e1df6dac5a3d3e6ee420b8702c9c82717c4ca9062220a7d34de67c0aa343
SSDEEP 1536:fli0XaKn5gYkqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYUU:di0XaKncqY31L2WXb0E86mwYUi8I
TLSH
T138F38C26E7A58542E3B24F7046A35B23AF71FC145AED8B4F7780675E9838F00ED29364
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor bootkit defense_evasion discovery execution 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 8 IoCs

resource	yara_rule
behavioral2/memory/4260-13-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-12-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-14-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-15-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-17-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-18-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-19-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli
behavioral2/memory/4260-20-0x0000000010000000-0x0000000010036000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 8 IoCs

resource	yara_rule
behavioral2/memory/4260-13-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-12-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-14-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-15-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-17-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-18-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-19-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4260-20-0x0000000010000000-0x0000000010036000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
8	4260	rundll32.exe
10	4260	rundll32.exe
11	4260	rundll32.exe
12	4260	rundll32.exe
13	4260	rundll32.exe
14	4260	rundll32.exe
16	4260	rundll32.exe
17	4260	rundll32.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000d00000001c62e-9.dat	aspack_v212_v242

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4916	nwhts.exe

Executes dropped EXE 1 IoCs

pid	Process
4916	nwhts.exe

Loads dropped DLL 1 IoCs

pid	Process
4260	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-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\lcspheg\\kuiqu.dll\",AbortProc"	rundll32.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)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	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

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
5032	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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	rundll32.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	nwhts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-11-10_d0a0813255641af988716edc101e91a5_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
5032	cmd.exe
4336	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
4336	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4260	rundll32.exe
4260	rundll32.exe
4260	rundll32.exe
4260	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4188	2026-11-10_d0a0813255641af988716edc101e91a5_elex_wannacry.exe
4916	nwhts.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 5032	4188	2026-11-10_d0a0813255641af988716edc101e91a5_elex_wannacry.exe	90
PID 5032 wrote to memory of 4336	5032	cmd.exe	92
PID 5032 wrote to memory of 4916	5032	cmd.exe	93
PID 4916 wrote to memory of 4260	4916	nwhts.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-11-10_d0a0813255641af988716edc101e91a5_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-10_d0a0813255641af988716edc101e91a5_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4188
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\nwhts.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-10_d0a0813255641af988716edc101e91a5_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:5032
- - 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:4336
- - \??\c:\nwhts.exe
    c:\nwhts.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-10_d0a0813255641af988716edc101e91a5_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4916
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\lcspheg\kuiqu.dll",AbortProc c:\nwhts.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)
      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:4260

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

Replay Monitor

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Downloads

kuiqu.dll

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

Submit Download

nwhts.exe

Path \??\c:\nwhts.exe
Size 164KB
SHA256 5d0101eb6a24e7bcc44eedbe3c36163f67c8ec490d25afcd723851b20700e438
MD5 ad4a3d74432f8031faf7080d81dac066
SHA1 c9073ad312efdbd8ee178eed99b2e101d3bbe24f
SHA512 4af8973ee2d417570f863a53be84a42e76c21b8ebdb215dc125d501090742beb22899787a14b6429543485c1de68869d9c9476674c2f7a464509fb413e0f24be
SSDEEP 1536:fli0XaKn5gYkqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYUN:di0XaKncqY31L2WXb0E86mwYUi8Z
TLSH
T158F38C26E7A58542E3B25F7046A35B23AF71FC145AED8B4F7780674E9838F00ED29364
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4188-1-0x0000000000405000-0x0000000000406000-memory.dmp

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memory/4188-3-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/4188-0-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/4260-17-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-11-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-13-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-12-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-14-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-15-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-18-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-19-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4260-20-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/4916-8-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/4916-6-0x0000000000400000-0x0000000000428000-memory.dmp

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