farfli | e9c5270493799dab594ac9b7c2886c18c2590a244b18d903d43a83f61770ce9a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
16/05/2026, 02:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe
Size 171KB
Sample260516-da3tdadv8m
SHA256 e9c5270493799dab594ac9b7c2886c18c2590a244b18d903d43a83f61770ce9a
MD5 cec6e1f7cffd5a629830ce4f210504b8
SHA1 6fa984a69ebd1946a312dbde21468dfa7178268a
SHA512 813c52baf4770a56d9791e65025588380279bf1aa4cf736fa1610b8342f0a21606736240588ea6319a582b8787cd7a97c99d6c2dd960b8d215bf4a1e63b84c52
SSDEEP 3072:h1qLbqRhEAZqR29I5pmHr8/iOwkZ4YHvpzerWA0luLUqVE:h0AZ42S5pp/dWYHBAWd+m
TLSH
T18904E101A759925AD733083F0727527DA6B97D384F1C75D3A7CC6A2E9138EE0AA3121F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer upx

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/3508-8-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral1/memory/3508-10-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral1/memory/3508-11-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral1/memory/3508-13-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral1/memory/3508-8-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3508-10-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3508-11-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3508-13-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

Detects executables packed with VMProtect. 4 IoCs

resource	yara_rule
behavioral1/memory/3508-8-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/3508-10-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/3508-11-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/3508-13-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Custom signature

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral1/files/0x00150000000243e5-3.dat	UPX
behavioral1/memory/3508-7-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/files/0x000a0000000244cb-6.dat	UPX
behavioral1/memory/3508-8-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3508-10-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3508-11-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3508-13-0x0000000010000000-0x000000001003A000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
20	3508	rundll32.exe
38	3508	rundll32.exe
39	3508	rundll32.exe
56	3508	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3140	uegot.exe

Executes dropped EXE 1 IoCs

pid	Process
3140	uegot.exe

Loads dropped DLL 1 IoCs

pid	Process
3508	rundll32.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-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\slnvk\\tngbi.nbt\",Exit"	rundll32.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)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.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	rundll32.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00150000000243e5-3.dat	upx

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	2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_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	uegot.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
4420	PING.EXE
5080	cmd.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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4420	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe
3508	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1052	2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe
3140	uegot.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 5080	1052	2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe	88
PID 5080 wrote to memory of 4420	5080	cmd.exe	91
PID 5080 wrote to memory of 3140	5080	cmd.exe	92
PID 3140 wrote to memory of 3508	3140	uegot.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uegot.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5080
- - 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:4420
- - C:\Users\Admin\AppData\Local\Temp\uegot.exe
    C:\Users\Admin\AppData\Local\Temp\\uegot.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-16_cec6e1f7cffd5a629830ce4f210504b8_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3140
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\slnvk\tngbi.nbt",Exit C:\Users\Admin\AppData\Local\Temp\uegot.exe
      4⤵
      Badlisted process makes network request
      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:3508

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

uegot.exe

Path C:\Users\Admin\AppData\Local\Temp\uegot.exe
Size 171KB
SHA256 7cde67975eb53b7c9f0245f4a669d181882838f1fe04e219d9a6cf14d3aecf57
MD5 b72bd68fe4d4425581f2a1cb32c6cddd
SHA1 ca81590ef56024c193dcc92e3c31c06bc6c856ee
SHA512 9467abeb22feda50a88640723648dfc2b8f600fbca4a14e5c8124a7f37050e545f0fce6986b75fd059f562c44c206398587a443eb58b5d71d9659e4c15601ce8
SSDEEP 3072:h1qLbqRhEAZqR29I5pmHr8/iOwkZ4YHvpzerWA0luLUqVs:h0AZ42S5pp/dWYHBAWd+a
TLSH
T17D04E101A759925AD733083F0716527DA6B9BD384F1C75D3A7CC6A1E9138FE0AA3121F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

tngbi.nbt

Path C:\slnvk\tngbi.nbt
Size 116KB
SHA256 53a1a5f96fce740b377bb053a358c0a50c63dfafddb8925d9aca66c852420872
MD5 f05a84544193f908045a170532883815
SHA1 3ad06ef6cc572a5e363d7fe05dcde5e646445994
SHA512 eda15ad3d6656a0146fd9476b205d1aefb7f4f6ecd1ea73b46b39157bb62f99d531114fc5ea32de485382577a7cbff4ae0edd4efdab1706c9840a9d165bac2ff
SSDEEP 3072:fCp96vhbrOz3bCMqKZ0V4Slz+n14q1/Jo5z5i4:6p961rOrDrZddJoz5i4
TLSH
T170C302D9B720C9EDC7E2727884BF6271170B908E4879D22F6CEEF89294711D0F0425B6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3508-7-0x0000000010000000-0x000000001003A000-memory.dmp

Download

memory/3508-8-0x0000000010000000-0x000000001003A000-memory.dmp

Download

memory/3508-10-0x0000000010000000-0x000000001003A000-memory.dmp

Download

memory/3508-11-0x0000000010000000-0x000000001003A000-memory.dmp

Download

memory/3508-13-0x0000000010000000-0x000000001003A000-memory.dmp

Download