farfli | 8974fd3c6a16fde79c6bd85a3bf5133912d7117516fc67a1bd820f67df3a34ba

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/08/2026, 04:33

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_coinminer_elex_wannacry.exe
Size 407KB
Sample260810-e6nvrsvzdx
SHA256 8974fd3c6a16fde79c6bd85a3bf5133912d7117516fc67a1bd820f67df3a34ba
MD5 83bc78d29818bc3be0bcfab3f990a9c7
SHA1 b1b8db47833e11d1af2cdf9483d8d27607f85b0b
SHA512 89c41d868360d81ae8cf0fe9e206e8e7f6e60377caf2689cf9c487476d687ea7ca033637b9ac5312d81595705c8b89037a6047399c121ea5ad57a2adb8a2a6de
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum49:zdE3sJd1fm/+yb3OYs84/JHd9
TLSH
T13494AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BBA8EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli persistence spyware stealer

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/6032-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/6032-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/6032-16-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/6032-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6032-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6032-16-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/4652-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/4652-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001b859-3.dat	UPX
behavioral2/memory/4848-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001c4d6-8.dat	UPX
behavioral2/memory/6032-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/6032-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/6032-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/6032-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
4848	nwhts.exe

Executes dropped EXE 2 IoCs

pid	Process
4848	nwhts.exe
6032	kui.exe

Loads dropped DLL 1 IoCs

pid	Process
6032	kui.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-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\djawr\\kui.exe \"c:\\Program Files\\djawr\\kuiqu.dll\",Viewer"	kui.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)	\??\s:	kui.exe
File opened (read-only)	\??\t:	kui.exe
File opened (read-only)	\??\u:	kui.exe
File opened (read-only)	\??\w:	kui.exe
File opened (read-only)	\??\y:	kui.exe
File opened (read-only)	\??\b:	kui.exe
File opened (read-only)	\??\o:	kui.exe
File opened (read-only)	\??\r:	kui.exe
File opened (read-only)	\??\d:	kui.exe
File opened (read-only)	\??\i:	kui.exe
File opened (read-only)	\??\n:	kui.exe
File opened (read-only)	\??\q:	kui.exe
File opened (read-only)	\??\a:	kui.exe
File opened (read-only)	\??\g:	kui.exe
File opened (read-only)	\??\j:	kui.exe
File opened (read-only)	\??\k:	kui.exe
File opened (read-only)	\??\p:	kui.exe
File opened (read-only)	\??\v:	kui.exe
File opened (read-only)	\??\x:	kui.exe
File opened (read-only)	\??\z:	kui.exe
File opened (read-only)	\??\h:	kui.exe
File opened (read-only)	\??\l:	kui.exe
File opened (read-only)	\??\m:	kui.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	kui.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\djawr\kuiqu.dll	nwhts.exe
File created	\??\c:\Program Files\djawr\kui.exe	nwhts.exe
File opened for modification	\??\c:\Program Files\djawr	nwhts.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
4536	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	2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_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	nwhts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kui.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
4536	cmd.exe
2272	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	kui.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kui.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2272	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
6032	kui.exe
6032	kui.exe
6032	kui.exe
6032	kui.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	6032	kui.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4652	2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_coinminer_elex_wannacry.exe
4848	nwhts.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 4536	4652	2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_coinminer_elex_wannacry.exe	89
PID 4536 wrote to memory of 2272	4536	cmd.exe	91
PID 4536 wrote to memory of 4848	4536	cmd.exe	92
PID 4848 wrote to memory of 6032	4848	nwhts.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\nwhts.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_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:4536
- - 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:2272
- - C:\Users\Admin\AppData\Local\Temp\nwhts.exe
    C:\Users\Admin\AppData\Local\Temp\\nwhts.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_83bc78d29818bc3be0bcfab3f990a9c7_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:4848
  - - \??\c:\Program Files\djawr\kui.exe
      "c:\Program Files\djawr\kui.exe" "c:\Program Files\djawr\kuiqu.dll",Viewer C:\Users\Admin\AppData\Local\Temp\nwhts.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:6032

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

kui.exe

Path C:\Program Files\djawr\kui.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

nwhts.exe

Path C:\Users\Admin\AppData\Local\Temp\nwhts.exe
Size 407KB
SHA256 4230850ef1812670aaac139b7934263814b1ca33ccbf9686f4ded7313a5783ec
MD5 ef4c9af4c6ca84ded0012184be1ee2b7
SHA1 958f75f79d9bdded0c4b499fe1c2dca6a4ee85af
SHA512 3f061e7951c78295642da89ec688ec8515353ee762dd4ff1a1ff7eabdc90046cad386da4a5407dd140ed1d8b1635f58ec537744923de554dc10897d171dd3c75
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4u:zdE3sJd1fm/+yb3OYs84/JHdu
TLSH
T1AC94AF01E7C351D6DE82257081FA7376B378DA4D0F12CBE3BB68EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

kuiqu.dll

Path \??\c:\Program Files\djawr\kuiqu.dll
Size 89KB
SHA256 3c6fee33ba1b8eb6aa5be843e23b7b3b34f54aab66f11d1d0b3c8976e6ce8d7e
MD5 a025d725d80afd0f8f4039493927c8dd
SHA1 0f34f6fb94b3e29136e142b9ec720b5c5fbe9057
SHA512 cb9557c9f97877b2171a1b1b98d0c7d5394cbfe249b1107a756d55280f03dd8608d058b108c9337e0961545f2017d23b2f590108f2c83b3a783df820ea07b33d
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGi:M1uF6Feu2NlQOBcGi
TLSH
T12E9302C45665CD8BCCD87072327FAA4EE631D48CB941ACB34A5E12A31B36AF3D41A705
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4652-0-0x0000000000400000-0x0000000000471000-memory.dmp

Download

memory/4652-2-0x0000000000400000-0x0000000000471000-memory.dmp

Download

memory/4848-7-0x0000000000400000-0x0000000000471000-memory.dmp

Download

memory/6032-10-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/6032-11-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/6032-13-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/6032-16-0x0000000010000000-0x0000000010033000-memory.dmp

Download