farfli | 17f75545a5c95c87fcf820453555276be4528701e0dfb5b5c84e5f5e60ab5c48

Analysis

max time kernel
148s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/10/2026, 01:53

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General

Target
2026-10-28_74e93941bcf7e3b8317e38567162fb1c_elex_wannacry.exe
Size 404KB
Sample261030-ca22eagw3t
SHA256 17f75545a5c95c87fcf820453555276be4528701e0dfb5b5c84e5f5e60ab5c48
MD5 74e93941bcf7e3b8317e38567162fb1c
SHA1 037873879516db4adff4618b3883f8eb460d0fa7
SHA512 ad32df74b1cfb73c67d1cc9684a342dcf2aa937f63a489b97e13b1982915d0486477c67d6939836d2056412d499a53af1e6fe3e5dfa08f8b0534ad4fa59c06fd
SSDEEP 6144:JtecHBTSpjVfs3mCL17O/cvARZZWcStoWwABr8iXpXxr2kDQH/9Mp:nHBTwjBqbYkvqZMcV7i32ieA
TLSH
T10494DF2332C1C8B7C1D17373FEE2AA72E3F5C2A85D356A7753EA014D1E2744C92562A9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer upx

Malware Config

Signatures

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

Detects Farfli Backdoor 5 IoCs

resource	yara_rule
behavioral2/memory/3020-13-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/3020-11-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/3020-16-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/3020-18-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/3020-21-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 5 IoCs

resource	yara_rule
behavioral2/memory/3020-13-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3020-11-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3020-16-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3020-18-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3020-21-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3236	wsdsdam.exe

Executes dropped EXE 2 IoCs

pid	Process
3236	wsdsdam.exe
3020	ixx.exe

Loads dropped DLL 1 IoCs

pid	Process
3020	ixx.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-1-5-21-4057491610-3392471755-192832105-1000\Software\Microsoft\Windows\CurrentVersion\Run\DESIME = "c:\\Program Files\\mtary\\ixx.exe \"c:\\Program Files\\mtary\\ixxms.dll\",DoPrivacy"	ixx.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)	\??\x:	ixx.exe
File opened (read-only)	\??\d:	ixx.exe
File opened (read-only)	\??\j:	ixx.exe
File opened (read-only)	\??\m:	ixx.exe
File opened (read-only)	\??\q:	ixx.exe
File opened (read-only)	\??\y:	ixx.exe
File opened (read-only)	\??\g:	ixx.exe
File opened (read-only)	\??\k:	ixx.exe
File opened (read-only)	\??\n:	ixx.exe
File opened (read-only)	\??\p:	ixx.exe
File opened (read-only)	\??\v:	ixx.exe
File opened (read-only)	\??\z:	ixx.exe
File opened (read-only)	\??\h:	ixx.exe
File opened (read-only)	\??\i:	ixx.exe
File opened (read-only)	\??\l:	ixx.exe
File opened (read-only)	\??\o:	ixx.exe
File opened (read-only)	\??\u:	ixx.exe
File opened (read-only)	\??\a:	ixx.exe
File opened (read-only)	\??\b:	ixx.exe
File opened (read-only)	\??\r:	ixx.exe
File opened (read-only)	\??\s:	ixx.exe
File opened (read-only)	\??\t:	ixx.exe
File opened (read-only)	\??\w:	ixx.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	ixx.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5944-0-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/5944-2-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/files/0x00160000000115b3-3.dat	upx
behavioral2/memory/3236-7-0x0000000000400000-0x0000000000499000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\mtary\ixxms.dll	wsdsdam.exe
File created	\??\c:\Program Files\mtary\ixx.exe	wsdsdam.exe
File opened for modification	\??\c:\Program Files\mtary	wsdsdam.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
5096	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ixx.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	ixx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-28_74e93941bcf7e3b8317e38567162fb1c_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	wsdsdam.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
5096	cmd.exe
928	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	ixx.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ixx.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
928	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3020	ixx.exe
3020	ixx.exe
3020	ixx.exe
3020	ixx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	ixx.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5944	2026-10-28_74e93941bcf7e3b8317e38567162fb1c_elex_wannacry.exe
3236	wsdsdam.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5944 wrote to memory of 5096	5944	2026-10-28_74e93941bcf7e3b8317e38567162fb1c_elex_wannacry.exe	90
PID 5096 wrote to memory of 928	5096	cmd.exe	92
PID 5096 wrote to memory of 3236	5096	cmd.exe	93
PID 3236 wrote to memory of 3020	3236	wsdsdam.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-10-28_74e93941bcf7e3b8317e38567162fb1c_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-28_74e93941bcf7e3b8317e38567162fb1c_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5944
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wsdsdam.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-28_74e93941bcf7e3b8317e38567162fb1c_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:5096
- - 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:928
- - C:\Users\Admin\AppData\Local\Temp\wsdsdam.exe
    C:\Users\Admin\AppData\Local\Temp\\wsdsdam.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-28_74e93941bcf7e3b8317e38567162fb1c_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:3236
  - - \??\c:\Program Files\mtary\ixx.exe
      "c:\Program Files\mtary\ixx.exe" "c:\Program Files\mtary\ixxms.dll",DoPrivacy C:\Users\Admin\AppData\Local\Temp\wsdsdam.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3020

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

Indicator Removal

T1070

File Deletion

T1070.004

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

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Downloads

ixx.exe

Path C:\Program Files\mtary\ixx.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

wsdsdam.exe

Path C:\Users\Admin\AppData\Local\Temp\wsdsdam.exe
Size 404KB
SHA256 16fe7563be9d3a5aedef375015a1cfcd76df1082bf63eabe2473bd2631fcf23b
MD5 67cc38fbf0b1b7421a98f551a293741b
SHA1 ad85ce0f983e0c226d7a6f1629aa38eb63cd41a6
SHA512 119261f5d525a9069545337c07ac023ca1f805af0728ae9d88bcd9238bb988f063e7cd5a650c70664e24b32f499cb00aeb8bfd23aacd4237bb57a6499bc940ba
SSDEEP 6144:JtecHBTSpjVfs3mCL17O/cvARZZWcStoWwABr8iXpXxr2kDQH/9MT:nHBTwjBqbYkvqZMcV7i32ie0
TLSH
T10D94DF2332C1C8B7C1D17373FEE2AA72E3F5C2A85D356A7753EA014D1E2744C92562A9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ixxms.dll

Path \??\c:\Program Files\mtary\ixxms.dll
Size 219KB
SHA256 8a0c190bdcd37638d3bcecd30e7e1b9c9c48492fc4e8ff79bf2d49f95416ac77
MD5 bded762bbe3795870e1387cc150f21c3
SHA1 d5b43050af44a5a7e79728583e9a2add8338f1a3
SHA512 0dfd76fe1b28fb3dad524931f7098ca2f11e7e103878441a91e75729d2621738c3e7df99fddbf84fbedfc88682b7d3c25e5e243adc9967c6cf1a213e99eebfee
SSDEEP 6144:XxDink0qeQKc/A8MNfnX2p2KL5aI3iMKB:XAk9uNfnX2p2Q5aIxW
TLSH
T12C2413D0FF52EECEE8610AF03B4FA2A9DF715C6BC48202C114EA58535A65EA3F655B01
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3020-10-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/3020-15-0x0000000000C20000-0x0000000000C21000-memory.dmp

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memory/3020-13-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/3020-11-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/3020-16-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/3020-18-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/3020-21-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/3236-7-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/5944-2-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/5944-0-0x0000000000400000-0x0000000000499000-memory.dmp

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