farfli | 695ad45ddf43219bbb0aeadbd0d9ec63e0df1b58ccefb02495f0014f3278c98c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
15/04/2026, 04:48

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General

Target
2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.exe
Size 169KB
Sample260415-fe4mksez7m
SHA256 695ad45ddf43219bbb0aeadbd0d9ec63e0df1b58ccefb02495f0014f3278c98c
MD5 a6f43f292286fd251dd13e4cc8118f76
SHA1 ce2e99db11f3b8efff95de55ccac497518919f0e
SHA512 bb9f79612d38104f7b3e0705b194c2eb52497e853392b10387eb8c7afbf962665bf8049f0721fd9afa548654bb9de531d9f7d05e56ec2d4f234f9453df238c6b
SSDEEP 3072:h1qLbqRhEAZqR29I5pmHr8/iOwkZ4YHvpzerWA0luLUqr:h0AZ42S5pp/dWYHBAWd+r
TLSH
T16904F101A759965AD333083F0B23527DA6BE7D344F1C75D3A7C96A2E5138EE0AA3121F
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/3488-10-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral1/memory/3488-14-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral1/memory/3488-16-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral1/memory/3488-18-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral1/memory/3488-10-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3488-14-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3488-16-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3488-18-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Detects executables packed with VMProtect. 4 IoCs

resource	yara_rule
behavioral1/memory/3488-10-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/3488-14-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/3488-16-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/3488-18-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral1/files/0x000900000002166e-2.dat	UPX
behavioral1/files/0x0008000000024529-5.dat	UPX
behavioral1/memory/3488-7-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3488-10-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3488-14-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3488-16-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral1/memory/3488-18-0x0000000010000000-0x000000001003A000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
5	3488	rundll32.exe
11	3488	rundll32.exe
12	3488	rundll32.exe
25	3488	rundll32.exe

Deletes itself 1 IoCs

pid	Process
5776	qmcno.exe

Executes dropped EXE 1 IoCs

pid	Process
5776	qmcno.exe

Loads dropped DLL 1 IoCs

pid	Process
3488	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-1-5-21-914486190-3969805341-592249730-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\xyxnvmppz\\uoftnfy.otu\",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)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	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/0x000900000002166e-2.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qmcno.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.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
2824	PING.EXE
6100	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2824	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe
3488	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3488	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5744	2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.exe
5776	qmcno.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5744 wrote to memory of 6100	5744	2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.exe	85
PID 6100 wrote to memory of 2824	6100	cmd.exe	87
PID 6100 wrote to memory of 5776	6100	cmd.exe	88
PID 5776 wrote to memory of 3488	5776	qmcno.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5744
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qmcno.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_a6f43f292286fd251dd13e4cc8118f76_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:6100
- - 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:2824
- - C:\Users\Admin\AppData\Local\Temp\qmcno.exe
    C:\Users\Admin\AppData\Local\Temp\\qmcno.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_a6f43f292286fd251dd13e4cc8118f76_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:5776
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\xyxnvmppz\uoftnfy.otu",Exit C:\Users\Admin\AppData\Local\Temp\qmcno.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:3488

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

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Downloads

qmcno.exe

Path C:\Users\Admin\AppData\Local\Temp\qmcno.exe
Size 170KB
SHA256 28224a02b285262235022383ee2a22789a486a64faf935568a93467dfeec57a2
MD5 118ac08499d8a4896b99856b1a835de5
SHA1 0fad683d01d902f4b856dea7e14c00e776f5f805
SHA512 fcf5881ad777046c2c5de7397b7bd3e9a23138adb94617e60e44f9e44b9def61ba099932d8d91ecea7f849066d7521a6ec62dc9864b88504650c957bbc07d450
SSDEEP 3072:h1qLbqRhEAZqR29I5pmHr8/iOwkZ4YHvpzerWA0luLUqj:h0AZ42S5pp/dWYHBAWd+j
TLSH
T11804F101A759961AD333083F0B23527DA6BE7D344F1C75D3A7C86A2E5138EE0EA2121F
MD5 SHA1 SHA512 SSDEEP TLSH

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uoftnfy.otu

Path \??\c:\xyxnvmppz\uoftnfy.otu
Size 116KB
SHA256 53a1a5f96fce740b377bb053a358c0a50c63dfafddb8925d9aca66c852420872
MD5 f05a84544193f908045a170532883815
SHA1 3ad06ef6cc572a5e363d7fe05dcde5e646445994
SHA512 eda15ad3d6656a0146fd9476b205d1aefb7f4f6ecd1ea73b46b39157bb62f99d531114fc5ea32de485382577a7cbff4ae0edd4efdab1706c9840a9d165bac2ff
SSDEEP 3072:fCp96vhbrOz3bCMqKZ0V4Slz+n14q1/Jo5z5i4:6p961rOrDrZddJoz5i4
TLSH
T170C302D9B720C9EDC7E2727884BF6271170B908E4879D22F6CEEF89294711D0F0425B6
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3488-7-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/3488-8-0x0000000001350000-0x000000000140F000-memory.dmp

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memory/3488-10-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/3488-14-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/3488-13-0x0000000001350000-0x000000000140F000-memory.dmp

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memory/3488-16-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/3488-18-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/3488-19-0x0000000001350000-0x000000000140F000-memory.dmp

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memory/3488-36-0x0000000001350000-0x000000000140F000-memory.dmp

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