farfli | 88cfb58c9a3cad13d3bb79b9a3c5d0764b136d263892b02c47308bc3fcf56994

Analysis

max time kernel
149s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
07/08/2026, 03:46

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General

Target
2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_coinminer_elex_wannacry.exe
Size 398KB
Sample260807-ebr9pszvht
SHA256 88cfb58c9a3cad13d3bb79b9a3c5d0764b136d263892b02c47308bc3fcf56994
MD5 b6b9e2e84afff847ace00f0b57549e8a
SHA1 d0770d67dacbfffdbabedae488c74dbbe9636c5d
SHA512 9aa29ffb422f016bc30503caff4bd441676ff896974bdc51860c4544d7212bc54ec784298d770ad88388c8b7891d98a2e898efbb345fe87a02e0ac6c70e6f9e0
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumHp:zdE3sJd1fm/+yb3OYs84/JH6p
TLSH
T14E94AF01E7C741D6DE82257081FA7377B3789A490F12CBE3BB68EE2E6E211D1953B119
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 4 IoCs

resource	yara_rule
behavioral1/memory/1656-14-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/1656-15-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/1656-17-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/1656-20-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral1/memory/1656-14-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1656-15-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1656-17-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1656-20-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral1/memory/4804-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/memory/4804-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/files/0x000b0000000242ff-4.dat	UPX
behavioral1/files/0x000300000001e6d0-11.dat	UPX
behavioral1/memory/3264-10-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/memory/1656-14-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/1656-15-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/1656-17-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/1656-20-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
3264	tgsiyvjx.exe

Executes dropped EXE 2 IoCs

pid	Process
3264	tgsiyvjx.exe
1656	vreqpz.exe

Loads dropped DLL 1 IoCs

pid	Process
1656	vreqpz.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-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\iztllia\\vreqpz.exe \"c:\\Program Files\\iztllia\\vreqpz.dll\",Viewer"	vreqpz.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:	vreqpz.exe
File opened (read-only)	\??\k:	vreqpz.exe
File opened (read-only)	\??\m:	vreqpz.exe
File opened (read-only)	\??\o:	vreqpz.exe
File opened (read-only)	\??\p:	vreqpz.exe
File opened (read-only)	\??\t:	vreqpz.exe
File opened (read-only)	\??\w:	vreqpz.exe
File opened (read-only)	\??\x:	vreqpz.exe
File opened (read-only)	\??\b:	vreqpz.exe
File opened (read-only)	\??\n:	vreqpz.exe
File opened (read-only)	\??\q:	vreqpz.exe
File opened (read-only)	\??\u:	vreqpz.exe
File opened (read-only)	\??\v:	vreqpz.exe
File opened (read-only)	\??\z:	vreqpz.exe
File opened (read-only)	\??\e:	vreqpz.exe
File opened (read-only)	\??\g:	vreqpz.exe
File opened (read-only)	\??\i:	vreqpz.exe
File opened (read-only)	\??\y:	vreqpz.exe
File opened (read-only)	\??\h:	vreqpz.exe
File opened (read-only)	\??\j:	vreqpz.exe
File opened (read-only)	\??\l:	vreqpz.exe
File opened (read-only)	\??\r:	vreqpz.exe
File opened (read-only)	\??\s:	vreqpz.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	vreqpz.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\iztllia	tgsiyvjx.exe
File created	\??\c:\Program Files\iztllia\vreqpz.dll	tgsiyvjx.exe
File created	\??\c:\Program Files\iztllia\vreqpz.exe	tgsiyvjx.exe
File opened for modification	\??\c:\Program Files\iztllia\vreqpz.exe	tgsiyvjx.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
4308	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	2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_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	tgsiyvjx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vreqpz.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
4308	cmd.exe
4448	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	vreqpz.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vreqpz.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4448	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1656	vreqpz.exe
1656	vreqpz.exe
1656	vreqpz.exe
1656	vreqpz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	vreqpz.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4804	2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_coinminer_elex_wannacry.exe
3264	tgsiyvjx.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 4308	4804	2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_coinminer_elex_wannacry.exe	87
PID 4308 wrote to memory of 4448	4308	cmd.exe	89
PID 4308 wrote to memory of 3264	4308	cmd.exe	90
PID 3264 wrote to memory of 1656	3264	tgsiyvjx.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\tgsiyvjx.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_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:4308
- - 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:4448
- - C:\Users\Admin\AppData\Local\Temp\tgsiyvjx.exe
    C:\Users\Admin\AppData\Local\Temp\\tgsiyvjx.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_b6b9e2e84afff847ace00f0b57549e8a_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:3264
  - - \??\c:\Program Files\iztllia\vreqpz.exe
      "c:\Program Files\iztllia\vreqpz.exe" "c:\Program Files\iztllia\vreqpz.dll",Viewer C:\Users\Admin\AppData\Local\Temp\tgsiyvjx.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:1656

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

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Downloads

vreqpz.exe

Path C:\Program Files\iztllia\vreqpz.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

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tgsiyvjx.exe

Path C:\Users\Admin\AppData\Local\Temp\tgsiyvjx.exe
Size 398KB
SHA256 3dd67c41d6a16a7102ba14514bbaaa1a426cfa70f3d3fff76da64438efeccdd8
MD5 8d0fca03293bc98dbcb10ef68a79094a
SHA1 427a6ad058a155d74271018d9185ace0f914fac7
SHA512 6b926e40d698038e4396cf1cbd1be9a428c16c2ad01d298e26252504154e314a31947bc00cfe8346604e380ab1a574282a6bb8fd8054d1c96a7ac9e49b350799
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH5:zdE3sJd1fm/+yb3OYs84/JH65
TLSH
T19F94AF01E7C741D6DE82257081FA7377B3789A490F12CBE3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

vreqpz.dll

Path \??\c:\Program Files\iztllia\vreqpz.dll
Size 89KB
SHA256 48879df4ebd29992163c8ed26706561314ebf3947056fe16b1afa745d8c32dba
MD5 ce3a0c19fe87982c865f57a889656627
SHA1 9d4dea86a03068f0042fa648c72ab9d750cd916b
SHA512 629ca2d2b3f7cf1140bfb59fd57863d7305cc459348d169b238b75dbbba15ca75e0840497a1c33fd2653214f46d150d8c49ae4e7ab3ab654df692f1d1ca3e4ef
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlG5:M1uF6Feu2NlQOBcG5
TLSH
T1199302C45665CD8BCCD87072327FAA4EE631D48CB941ACB34A5E13A31A36AE3D41A745
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1656-14-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1656-15-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1656-17-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1656-20-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3264-10-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4804-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4804-2-0x0000000000400000-0x0000000000471000-memory.dmp

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