farfli | 11afb4b2ca5093e9f8c797a8ad47a151da0450828e8bcd10091e6e4350b57ee3

Analysis

max time kernel
150s
max time network
139s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/08/2026, 12:35

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_coinminer_elex_wannacry.exe
Size 249KB
Sample260831-psrdvavtfx
SHA256 11afb4b2ca5093e9f8c797a8ad47a151da0450828e8bcd10091e6e4350b57ee3
MD5 f8be749a3862e904eb4aa66ac78ce45f
SHA1 65f6352757c518e962027d6e1a8b487d73916223
SHA512 10adee5daf7cc4428549f9dad595e87548260c373128416c7b93a6c7fc289a77c14fd0adb7962bdb7087672d21d243e646791caf91d964dbc72bb3c2349910d5
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSo:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T15244F1813675CDB7F0621ABD4E2B56368136BE192B047097D3C4AE4FF434EA9AD3E148
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/4228-11-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/4228-14-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/4228-11-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4228-14-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/5228-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/memory/5228-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/files/0x001200000001157e-3.dat	UPX
behavioral2/memory/5996-7-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
5996	areskhi.exe

Executes dropped EXE 2 IoCs

pid	Process
5996	areskhi.exe
4228	uvg.exe

Loads dropped DLL 1 IoCs

pid	Process
4228	uvg.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-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\qyqoy\\uvg.exe \"c:\\Program Files\\qyqoy\\uvguw.dll\",Interface"	uvg.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)	\??\a:	uvg.exe
File opened (read-only)	\??\b:	uvg.exe
File opened (read-only)	\??\m:	uvg.exe
File opened (read-only)	\??\q:	uvg.exe
File opened (read-only)	\??\t:	uvg.exe
File opened (read-only)	\??\u:	uvg.exe
File opened (read-only)	\??\z:	uvg.exe
File opened (read-only)	\??\h:	uvg.exe
File opened (read-only)	\??\r:	uvg.exe
File opened (read-only)	\??\s:	uvg.exe
File opened (read-only)	\??\d:	uvg.exe
File opened (read-only)	\??\j:	uvg.exe
File opened (read-only)	\??\n:	uvg.exe
File opened (read-only)	\??\o:	uvg.exe
File opened (read-only)	\??\w:	uvg.exe
File opened (read-only)	\??\y:	uvg.exe
File opened (read-only)	\??\g:	uvg.exe
File opened (read-only)	\??\i:	uvg.exe
File opened (read-only)	\??\k:	uvg.exe
File opened (read-only)	\??\l:	uvg.exe
File opened (read-only)	\??\p:	uvg.exe
File opened (read-only)	\??\v:	uvg.exe
File opened (read-only)	\??\x:	uvg.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	uvg.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\qyqoy	areskhi.exe
File created	\??\c:\Program Files\qyqoy\uvguw.dll	areskhi.exe
File created	\??\c:\Program Files\qyqoy\uvg.exe	areskhi.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
1852	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	2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_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	areskhi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uvg.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
1852	cmd.exe
6496	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	uvg.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	uvg.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
6496	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4228	uvg.exe
4228	uvg.exe
4228	uvg.exe
4228	uvg.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4228	uvg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5228	2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_coinminer_elex_wannacry.exe
5996	areskhi.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5228 wrote to memory of 1852	5228	2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_coinminer_elex_wannacry.exe	90
PID 1852 wrote to memory of 6496	1852	cmd.exe	92
PID 1852 wrote to memory of 5996	1852	cmd.exe	93
PID 5996 wrote to memory of 4228	5996	areskhi.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5228
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\areskhi.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_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:1852
- - 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:6496
- - C:\Users\Admin\AppData\Local\Temp\areskhi.exe
    C:\Users\Admin\AppData\Local\Temp\\areskhi.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-31_f8be749a3862e904eb4aa66ac78ce45f_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:5996
  - - \??\c:\Program Files\qyqoy\uvg.exe
      "c:\Program Files\qyqoy\uvg.exe" "c:\Program Files\qyqoy\uvguw.dll",Interface C:\Users\Admin\AppData\Local\Temp\areskhi.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:4228

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

Loading Replay Monitor...

Downloads

uvg.exe

Path C:\Program Files\qyqoy\uvg.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

areskhi.exe

Path C:\Users\Admin\AppData\Local\Temp\areskhi.exe
Size 250KB
SHA256 9ab39c6a8060c98899e9d2b73fa44d2e005ee6b4d32e02de19a6cc88ab5a04a5
MD5 ac0c2367b44b86070cc193201ea9406c
SHA1 95684589d0aa89cc1d0399f489eda2275de8a836
SHA512 5c4aa9b0e937fe4cb21cce9d5c509423a0b978249fd6fba6c8bacbe31dfdb29909b2c4cbff64a34bba70572bf6695c2a42dc87cf997b4eb28e6d197f51ab12c5
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoG:tgmYA/nsYf8QdsINkZ6CQetFV
TLSH
T16E44F1813675CDB7F0621ABD4E2B56368236BE192B047097D3C4AE4FF434EA5AD3E148
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

uvguw.dll

Path \??\c:\Program Files\qyqoy\uvguw.dll
Size 168KB
SHA256 3d828cdb820588381a35ca6b543da9cf9564ba24125264e0d153e491ec4631c1
MD5 51a6b70855e80d15e319f2b24c03ac3d
SHA1 f50bea6557a8a64167b9b4b76283f174fcd037d2
SHA512 4be936651e37ecd6b5393e83c2519a93a3b79c627d9de4c6728710892d9957a9e5d0f3db882825ff325f9702f94e8d032d6fcebdb02af82b3257bb1d08b61760
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZMp:SJ8T1xE3ocg9f2nfLnwYsxf2Za
TLSH
T145F312D3EFB649E0C4361BB07C53C10FB8620C6498725B5642D9FEEA3DA668E453D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4228-10-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/4228-11-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/4228-14-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/5228-0-0x0000000000400000-0x0000000000468000-memory.dmp

Download

memory/5228-2-0x0000000000400000-0x0000000000468000-memory.dmp

Download

memory/5996-7-0x0000000000400000-0x0000000000468000-memory.dmp

Download