farfli | 7ec90088fcd42e6c4a19a18be594d27631a3db6b51d3b71f41f12606f04fbf71

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
04/08/2026, 03:05

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-08-03_3339f2e60dae88cb441120d88e84646a_elex_wannacry.exe
Size 103KB
Sample260804-dldnma1cjd
SHA256 7ec90088fcd42e6c4a19a18be594d27631a3db6b51d3b71f41f12606f04fbf71
MD5 3339f2e60dae88cb441120d88e84646a
SHA1 36262970c39a3c0c35fe1facaafa36b3cf3ad7bb
SHA512 ce4d43af41772c7fd332f8fada2a09f6993b3e1fc451061353550de0862f61130b53918edc43a984068ff172d034c58cc87c2b51d317005624a38ddc10c7cb98
SSDEEP 1536:8gDktLw4rO10tMrlk3SJDlf98jqP+8il3CxOeZIckWlmy3:uLRrO10TiJD9yjqrilyxOuP3
TLSH
T169A37C1D6962C59EE4015F74430B922097A2AC59FA304F335384BB4EFF36E1BEDA91D8
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 3 IoCs

resource	yara_rule
behavioral1/memory/1732-12-0x0000000010000000-0x0000000010023000-memory.dmp	family_farfli
behavioral1/memory/1732-15-0x0000000010000000-0x0000000010023000-memory.dmp	family_farfli
behavioral1/memory/1732-16-0x0000000010000000-0x0000000010023000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/1732-12-0x0000000010000000-0x0000000010023000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1732-15-0x0000000010000000-0x0000000010023000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1732-16-0x0000000010000000-0x0000000010023000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
8	1732	rundll32.exe
9	1732	rundll32.exe
10	1732	rundll32.exe
17	1732	rundll32.exe
23	1732	rundll32.exe
35	1732	rundll32.exe
44	1732	rundll32.exe
50	1732	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4488	lgxnj.exe

Executes dropped EXE 1 IoCs

pid	Process
4488	lgxnj.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	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-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\crfpwjuqp\\pqjqj.dll\",QueryPluginInterface"	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)	\??\k:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\l:	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)	\??\v:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	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

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
764	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-03_3339f2e60dae88cb441120d88e84646a_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	lgxnj.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
764	cmd.exe
4272	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
4272	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1732	rundll32.exe
1732	rundll32.exe
1732	rundll32.exe
1732	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1584	2026-08-03_3339f2e60dae88cb441120d88e84646a_elex_wannacry.exe
4488	lgxnj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 764	1584	2026-08-03_3339f2e60dae88cb441120d88e84646a_elex_wannacry.exe	87
PID 764 wrote to memory of 4272	764	cmd.exe	89
PID 764 wrote to memory of 4488	764	cmd.exe	90
PID 4488 wrote to memory of 1732	4488	lgxnj.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-03_3339f2e60dae88cb441120d88e84646a_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-03_3339f2e60dae88cb441120d88e84646a_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\lgxnj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_3339f2e60dae88cb441120d88e84646a_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:764
- - 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:4272
- - C:\Users\Admin\AppData\Local\Temp\lgxnj.exe
    C:\Users\Admin\AppData\Local\Temp\\lgxnj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_3339f2e60dae88cb441120d88e84646a_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4488
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\crfpwjuqp\pqjqj.dll",QueryPluginInterface C:\Users\Admin\AppData\Local\Temp\lgxnj.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:1732

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

Replay Monitor

Loading Replay Monitor...

Downloads

lgxnj.exe

Path C:\Users\Admin\AppData\Local\Temp\lgxnj.exe
Size 103KB
SHA256 fe2e08a2bb6d9c798174b018df41321cc34d2e00f5c55252949fa845f6f13094
MD5 1b47d579f159fa7466a0fd3e8bd24039
SHA1 70854612293d4998d6bc9d4c5c8e1eb57610fe9d
SHA512 9c73bdff411ef8896130721532d0bcebbbc8eb6ec65c2061b4b4c72e9a77dc04b261d1436303a74c926954a9dae15fc26d253ec0c6caa2084e5b5acfcdeb655a
SSDEEP 1536:8gDktLw4rO10tMrlk3SJDlf98jqP+8il3CxOeZIckWlmyd:uLRrO10TiJD9yjqrilyxOuPd
TLSH
T14AA37C1D6962C59EE4015F74430B922097A2AC59FA304F335384BB4EFF36E1BDDA91E8
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

pqjqj.dll

Path \??\c:\crfpwjuqp\pqjqj.dll
Size 44KB
SHA256 9111c1eb1f0b59dcd49cfd5a0abc0ba100ac59a3bcae8623ff091dfdc46fed3c
MD5 0f12a7d509b2c9bb9b4cd6d8a0325e86
SHA1 f5fb59ad4f0633d115b06f35a2dc161dc4367157
SHA512 e3c84a643ff0a2627daba8a056221985a472aaf07bade61b3e9459db4bfc8792c1347606911e3fcc01581508004b18b5435bcccd5e7617cc6d091f37a5f42e7f
SSDEEP 768:DICzePjle2367kjhrXLdCuYMW8QVnwrLDGe/brbtJyOTuXfADVjeJ2i/MVJWAE:DDePjA23Ukjh37YMonwrvGybrbbRCf4E
TLSH
T1FD23F1A7B94E8D4FC0AE41F7078FC8D422B5589A97A7CB4626008F216CC4FB07E52376
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1584-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1584-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1732-10-0x0000000010000000-0x0000000010023000-memory.dmp

Download

memory/1732-11-0x00000000025F0000-0x00000000025F2000-memory.dmp

Download

memory/1732-13-0x00000000025F0000-0x00000000025F2000-memory.dmp

Download

memory/1732-12-0x0000000010000000-0x0000000010023000-memory.dmp

Download

memory/1732-15-0x0000000010000000-0x0000000010023000-memory.dmp

Download

memory/1732-16-0x0000000010000000-0x0000000010023000-memory.dmp

Download

memory/4488-7-0x0000000000400000-0x0000000000417000-memory.dmp

Download