farfli | 14758a23e76e29848380efa399a9f722b4769a21e9b40620ba1454efdf734afb

Analysis

max time kernel
148s
max time network
140s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 06:20

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General

Target
2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_coinminer_elex_wannacry.exe
Size 234KB
Sample260802-g3s2eswfph
SHA256 14758a23e76e29848380efa399a9f722b4769a21e9b40620ba1454efdf734afb
MD5 2312c3b3d6b187d0bed4e7dcd4fd9914
SHA1 4c49deebf778d8d89ed71f7bf5788c76f499562c
SHA512 0f94dac053a4434b02c8aa43426498e34f2d2131b12a867878f37a9c6d5f5cd5eb97ad5034119209a3796a7ddf34e6e1e48374b28201723fa4130ec33dcc93a5
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSocw:tgmYA/nsYf8QdsINkZ6CQetF2
TLSH
T10334F18136A5CD77F0621B7E4D7B163A8537BE651B00B48BD3C4AD4FB4319E46E2E209
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/3660-12-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/3660-14-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/3660-12-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3660-14-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/3524-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/memory/3524-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/files/0x000a00000001136f-3.dat	UPX
behavioral2/memory/5644-7-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
5644	dwkzgk.exe

Executes dropped EXE 2 IoCs

pid	Process
5644	dwkzgk.exe
3660	ayalz.exe

Loads dropped DLL 1 IoCs

pid	Process
3660	ayalz.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-1-5-21-3986082593-3624157295-3514260330-1000\Software\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\ypuivjvjy\\ayalz.exe \"c:\\Program Files\\ypuivjvjy\\ayalz.dll\",Interface"	ayalz.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)	\??\n:	ayalz.exe
File opened (read-only)	\??\p:	ayalz.exe
File opened (read-only)	\??\w:	ayalz.exe
File opened (read-only)	\??\x:	ayalz.exe
File opened (read-only)	\??\o:	ayalz.exe
File opened (read-only)	\??\s:	ayalz.exe
File opened (read-only)	\??\t:	ayalz.exe
File opened (read-only)	\??\q:	ayalz.exe
File opened (read-only)	\??\a:	ayalz.exe
File opened (read-only)	\??\h:	ayalz.exe
File opened (read-only)	\??\k:	ayalz.exe
File opened (read-only)	\??\r:	ayalz.exe
File opened (read-only)	\??\u:	ayalz.exe
File opened (read-only)	\??\v:	ayalz.exe
File opened (read-only)	\??\y:	ayalz.exe
File opened (read-only)	\??\d:	ayalz.exe
File opened (read-only)	\??\g:	ayalz.exe
File opened (read-only)	\??\i:	ayalz.exe
File opened (read-only)	\??\j:	ayalz.exe
File opened (read-only)	\??\z:	ayalz.exe
File opened (read-only)	\??\b:	ayalz.exe
File opened (read-only)	\??\l:	ayalz.exe
File opened (read-only)	\??\m:	ayalz.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	ayalz.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ypuivjvjy	dwkzgk.exe
File created	\??\c:\Program Files\ypuivjvjy\ayalz.dll	dwkzgk.exe
File created	\??\c:\Program Files\ypuivjvjy\ayalz.exe	dwkzgk.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
4344	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	2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_coinminer_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	dwkzgk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ayalz.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
4344	cmd.exe
2108	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	ayalz.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ayalz.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2108	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3660	ayalz.exe
3660	ayalz.exe
3660	ayalz.exe
3660	ayalz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	ayalz.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3524	2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_coinminer_elex_wannacry.exe
5644	dwkzgk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 4344	3524	2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_coinminer_elex_wannacry.exe	89
PID 4344 wrote to memory of 2108	4344	cmd.exe	91
PID 4344 wrote to memory of 5644	4344	cmd.exe	92
PID 5644 wrote to memory of 3660	5644	dwkzgk.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\dwkzgk.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_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:4344
- - 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:2108
- - C:\Users\Admin\AppData\Local\Temp\dwkzgk.exe
    C:\Users\Admin\AppData\Local\Temp\\dwkzgk.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_2312c3b3d6b187d0bed4e7dcd4fd9914_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:5644
  - - \??\c:\Program Files\ypuivjvjy\ayalz.exe
      "c:\Program Files\ypuivjvjy\ayalz.exe" "c:\Program Files\ypuivjvjy\ayalz.dll",Interface C:\Users\Admin\AppData\Local\Temp\dwkzgk.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:3660

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

ayalz.exe

Path C:\Program Files\ypuivjvjy\ayalz.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

dwkzgk.exe

Path C:\Users\Admin\AppData\Local\Temp\dwkzgk.exe
Size 234KB
SHA256 64a43f2356a214fca1c7a7df0ad94a3dadb88bd09ce08579d6a37e6576bb3f08
MD5 6516e2adb252239da369ba35c4470668
SHA1 781b40778d0964442ce5d6afe3beb600c979e092
SHA512 247c3999cb50d6fa2961aaa5241e6ffb8993f7b449d8cb2363d2f600977b04a9adcadd1518b8131b88bad6699067d8184cea5f9c952899a19906743484f90f3b
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSocl:tgmYA/nsYf8QdsINkZ6CQetF/
TLSH
T1D834F18136A5CD77F0621B7E4D7B163A8537BE651B00B48BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ayalz.dll

Path \??\c:\Program Files\ypuivjvjy\ayalz.dll
Size 168KB
SHA256 45fdba415c3197c10fc4bf31ce035d94ba9bb2845ff1e765824f003450f6a1aa
MD5 a44b9185b19c249a4b562bca421d0ae2
SHA1 bc59c96f99a1d96ccb0757929ead4babfc99a457
SHA512 5e6590ed0f3e2cddc5a64739f5bf375fa0da91582f26bcd8b6a044c5c8eb41c828737afa3232a26a8ee7fe3999f47d7311df28398c02b69999bfe6a9bcd54637
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZMp:SJ8T1xE3ocg9f2nfLnwYsxf2ZY
TLSH
T1E0F312D3EFA649E0C0361BB07C53C10FB8620C6498725B5553D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3524-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/3524-2-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/3660-10-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/3660-12-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/3660-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5644-7-0x0000000000400000-0x0000000000468000-memory.dmp

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