farfli | 4f165dd1d3557c47887aa054bcc2f1dec3e41be1e557cf24c4e96ba943bee181

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
15/04/2026, 23:19

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-04-15_102cf5d3022d7514825814af5be76c9c_coinminer_elex_wannacry.exe
Size 413KB
Sample260415-3a2nrad19w
SHA256 4f165dd1d3557c47887aa054bcc2f1dec3e41be1e557cf24c4e96ba943bee181
MD5 102cf5d3022d7514825814af5be76c9c
SHA1 ee4e8e735b31976ae55fa6b1afe2eae60cc2666f
SHA512 1373db1db5ff2131d30ae0670a13f57c225a9cbf3f5a06c49175193236e22b576e08b58017383bcf8fe8e234a79bd080abdc908841de475da5ef3f4088601213
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T12694D02272D0CBA3C0856432CE66E63CD3E5CC689D705E3773E9FA5DEA36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 2 IoCs

resource	yara_rule
behavioral2/memory/3504-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/3504-13-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/3504-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3504-13-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x002300000002b086-3.dat	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
1	3504	rundll32.exe
3	3504	rundll32.exe
4	3504	rundll32.exe
5	3504	rundll32.exe

Deletes itself 1 IoCs

pid	Process
132	awxhy.exe

Executes dropped EXE 1 IoCs

pid	Process
132	awxhy.exe

Loads dropped DLL 1 IoCs

pid	Process
3504	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-1-5-21-3119821332-640943685-2562343641-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\pqtlnxnuu\\jswzf.dll\",InitEngine"	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)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\p:	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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\pqtlnxnuu	awxhy.exe
File created	\??\c:\Program Files\pqtlnxnuu\jswzf.dll	awxhy.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	awxhy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-04-15_102cf5d3022d7514825814af5be76c9c_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

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
1300	cmd.exe
4648	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	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
4648	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3504	rundll32.exe
3504	rundll32.exe
3504	rundll32.exe
3504	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1176	2026-04-15_102cf5d3022d7514825814af5be76c9c_coinminer_elex_wannacry.exe
132	awxhy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 1300	1176	2026-04-15_102cf5d3022d7514825814af5be76c9c_coinminer_elex_wannacry.exe	79
PID 1300 wrote to memory of 4648	1300	cmd.exe	81
PID 1300 wrote to memory of 132	1300	cmd.exe	82
PID 132 wrote to memory of 3504	132	awxhy.exe	83

C:\Users\Admin\AppData\Local\Temp\2026-04-15_102cf5d3022d7514825814af5be76c9c_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-15_102cf5d3022d7514825814af5be76c9c_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\awxhy.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_102cf5d3022d7514825814af5be76c9c_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1300
- - 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:4648
- - C:\Users\Admin\AppData\Local\Temp\awxhy.exe
    C:\Users\Admin\AppData\Local\Temp\\awxhy.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_102cf5d3022d7514825814af5be76c9c_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:132
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\pqtlnxnuu\jswzf.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\awxhy.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:3504

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

awxhy.exe

Path C:\Users\Admin\AppData\Local\Temp\awxhy.exe
Size 413KB
SHA256 01cd989cec0463396c033846b29e7be898c69621104179e48b9082a9cef47833
MD5 86954c7fef6ea19b9a645921b8d1f62e
SHA1 e190fbb21a68c6c87dc015af3caf70c5a88c8ec2
SHA512 b28caafee1df70fc93b36b7b4da8c709010e9d86b6ab0a7da1751bc9acbc26fd91e63c2099a72d4d190b2b4aa15b916869a1f3fc8c24ca0207b27dc813460cab
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T17394D02272D0CBA3C0856432CE66E63CD3E5CC689D705E3773E9FA5DEA36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

jswzf.dll

Path \??\c:\Program Files\pqtlnxnuu\jswzf.dll
Size 176KB
SHA256 9b35033843fa62f8d718aea2b2adc05522c47eaee3c73313129646cb96bfb886
MD5 2746c66e6c161a8f8d75a247f112fb05
SHA1 d4bdf03a245574260064353d3b8cb78a7b5397e7
SHA512 1d8c60c0381da60ef41b419dcc2b987e5701369f10022591d17aa4b0d77524643b1a052572763e3ae784fd73acf34d29f1cb3478de7bdbd4930c268abef39f44
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocg:1Jv2tOItshGYdMnYYVjasKbOWSFofg
TLSH
T18D041261866D1C34C087B7717B05920DF6B453A49179CB93F7B8AF2B3C12AEA806E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/132-6-0x0000000002290000-0x000000000230A000-memory.dmp

Download

memory/1176-1-0x0000000002250000-0x00000000022CA000-memory.dmp

Download

memory/3504-9-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/3504-10-0x000000001005A000-0x000000001005B000-memory.dmp

Download

memory/3504-11-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/3504-13-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/3504-14-0x0000000002B70000-0x0000000002BEA000-memory.dmp

Download

memory/3504-16-0x0000000002B70000-0x0000000002BEA000-memory.dmp

Download