farfli | 2480466a913385606a22a33a4d193dad47657a2de786f92c50f7f5c4e00ff622

Analysis

max time kernel
148s
max time network
142s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/08/2026, 08:54

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General

Target
2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_elex_wannacry.exe
Size 236KB
Sample260803-ktv17seq81
SHA256 2480466a913385606a22a33a4d193dad47657a2de786f92c50f7f5c4e00ff622
MD5 c1786f50e83d7f3ed3237a4b066f644a
SHA1 4c93788b54a2024dfbc0d1fcf6dfdb7adda1c763
SHA512 dd68acf1cf588b2c3a689bb93e7f934b8605870f8bbbe2247f0c102e78fda16f3ae6da02751d2530d37220ac92337a658a7bd426a19492c01f9ed87192435e14
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T1BF34F18136A5CD77F0221B7D4D7B163B8536BE691B40709BD3C4AE4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

98.126.40.18:3204
http://98.126.40.19:805/index.php
http://98.126.40.20:803/

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 2 IoCs

resource	yara_rule
behavioral2/memory/1196-11-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/1196-14-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/1196-11-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1196-14-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2952-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/memory/2952-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/files/0x000b00000001b315-3.dat	UPX
behavioral2/memory/2728-7-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2728	duifmznw.exe

Executes dropped EXE 2 IoCs

pid	Process
2728	duifmznw.exe
1196	eel.exe

Loads dropped DLL 1 IoCs

pid	Process
1196	eel.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-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\wpgtzm\\eel.exe \"c:\\Program Files\\wpgtzm\\eelby.dll\",Interface"	eel.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)	\??\h:	eel.exe
File opened (read-only)	\??\v:	eel.exe
File opened (read-only)	\??\t:	eel.exe
File opened (read-only)	\??\u:	eel.exe
File opened (read-only)	\??\y:	eel.exe
File opened (read-only)	\??\a:	eel.exe
File opened (read-only)	\??\g:	eel.exe
File opened (read-only)	\??\i:	eel.exe
File opened (read-only)	\??\k:	eel.exe
File opened (read-only)	\??\l:	eel.exe
File opened (read-only)	\??\r:	eel.exe
File opened (read-only)	\??\z:	eel.exe
File opened (read-only)	\??\j:	eel.exe
File opened (read-only)	\??\m:	eel.exe
File opened (read-only)	\??\n:	eel.exe
File opened (read-only)	\??\p:	eel.exe
File opened (read-only)	\??\s:	eel.exe
File opened (read-only)	\??\w:	eel.exe
File opened (read-only)	\??\x:	eel.exe
File opened (read-only)	\??\o:	eel.exe
File opened (read-only)	\??\q:	eel.exe
File opened (read-only)	\??\b:	eel.exe
File opened (read-only)	\??\d:	eel.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	eel.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\wpgtzm	duifmznw.exe
File created	\??\c:\Program Files\wpgtzm\eelby.dll	duifmznw.exe
File created	\??\c:\Program Files\wpgtzm\eel.exe	duifmznw.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
3076	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	duifmznw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eel.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_elex_wannacry.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
3076	cmd.exe
5272	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	eel.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	eel.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5272	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1196	eel.exe
1196	eel.exe
1196	eel.exe
1196	eel.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1196	eel.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2952	2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_elex_wannacry.exe
2728	duifmznw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 3076	2952	2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_elex_wannacry.exe	89
PID 3076 wrote to memory of 5272	3076	cmd.exe	91
PID 3076 wrote to memory of 2728	3076	cmd.exe	92
PID 2728 wrote to memory of 1196	2728	duifmznw.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\duifmznw.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_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:3076
- - 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:5272
- - C:\Users\Admin\AppData\Local\Temp\duifmznw.exe
    C:\Users\Admin\AppData\Local\Temp\\duifmznw.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_c1786f50e83d7f3ed3237a4b066f644a_coinminer_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:2728
  - - \??\c:\Program Files\wpgtzm\eel.exe
      "c:\Program Files\wpgtzm\eel.exe" "c:\Program Files\wpgtzm\eelby.dll",Interface C:\Users\Admin\AppData\Local\Temp\duifmznw.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:1196

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

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

eel.exe

Path C:\Program Files\wpgtzm\eel.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

duifmznw.exe

Path C:\Users\Admin\AppData\Local\Temp\duifmznw.exe
Size 237KB
SHA256 a760731d43ffd4c889e2649f9cdd08991d0c399c8a6e236535dc07e2ae3a577d
MD5 adb8bdb82a4b3a25dbe7f1837b9caf4e
SHA1 23cfa8cdd5ac1a3f6aec74d539810650abf02450
SHA512 8e820fb76c322791653c7d3d5b947c0c682cebad67f789ce7db547e33776456159028e4bd21a72d518932467d18c333b2f61d62d8d7b9d019605871771d3e279
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSocn:tgmYA/nsYf8QdsINkZ6CQetFN
TLSH
T11234F18136A5CD77F0221B7D4D7B163B8536BE691B40709BD3C4AE4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

eelby.dll

Path \??\c:\Program Files\wpgtzm\eelby.dll
Size 168KB
SHA256 8e1ef91bc42a929a3f8e0e8ceae1c93449f32ab60987393987f207d6a2867181
MD5 27d7a9f03bc8e98f24ed0e7016af84df
SHA1 6eea13db73ecb5d6b268eddbd27f1218fcdbec1e
SHA512 b30d0af0d5a0eed9a0fd53fb1c5efafaf062109935e94d4c8f9daaf1f670ee74856f7b2481d120c8a84fee58277b916844780a32077f6acc72f8b9ffddf025e2
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZM6:SJ8T1xE3ocg9f2nfLnwYsxf2Zn
TLSH
T180F312D3EFB649E0C4361BB06C53C10FB8620CA498715B5543D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1196-10-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/1196-11-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/1196-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/2728-7-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/2952-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/2952-2-0x0000000000400000-0x0000000000468000-memory.dmp

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