farfli | 7de344f4f157df7db540e577c3bd899e11f35d3d82b2fda7cc0fc2a15c24ab49

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
19/04/2026, 23:49

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General

Target
2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe
Size 115KB
Sample260419-3t7dcads2n
SHA256 7de344f4f157df7db540e577c3bd899e11f35d3d82b2fda7cc0fc2a15c24ab49
MD5 22a7e357694cbdb9244ba7fc5f8d8884
SHA1 bba23940703c9604ce5e3e394b58e8f3a0f85fba
SHA512 66d070fa3a33ae97c086cb192aa898891ac1179f61b870c922f5b3f62b777f85f75fc7b478d21dbc9a6077e7612574f559da79937514087374ad1b440c7d25d6
SSDEEP 1536:vRiAXaKD5gxzmwYEM/D3ozc4I8JboecWtX4:piAXaKDeKNnD36cb8tI
TLSH
T1AFC3AE029BF0C6A5E0625CB5467757219EB2FC6A2924832777D6B70FEC30F04EE253A4
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 4 IoCs

resource	yara_rule
behavioral1/memory/5000-12-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli
behavioral1/memory/5000-13-0x0000000010001000-0x000000001001E000-memory.dmp	family_farfli
behavioral1/memory/5000-14-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli
behavioral1/memory/5000-16-0x0000000010001000-0x000000001001E000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/5000-12-0x0000000010000000-0x000000001002E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/5000-14-0x0000000010000000-0x000000001002E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 15 IoCs

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

flow	pid	Process
7	5000	rundll32.exe
8	5000	rundll32.exe
9	5000	rundll32.exe
10	5000	rundll32.exe
11	5000	rundll32.exe
20	5000	rundll32.exe
31	5000	rundll32.exe
35	5000	rundll32.exe
38	5000	rundll32.exe
41	5000	rundll32.exe
45	5000	rundll32.exe
46	5000	rundll32.exe
53	5000	rundll32.exe
54	5000	rundll32.exe
57	5000	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4240	eogqz.exe

Executes dropped EXE 1 IoCs

pid	Process
4240	eogqz.exe

Loads dropped DLL 1 IoCs

pid	Process
5000	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-1-5-21-745935970-1373868228-562466063-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\iwgmg\\lnonl.dll\",GetWindowClass"	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)	\??\w:	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)	\??\n:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	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)	\??\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

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	eogqz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_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
2660	cmd.exe
2032	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
2032	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5000	rundll32.exe
5000	rundll32.exe
5000	rundll32.exe
5000	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5000	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4216	2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe
4240	eogqz.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 2660	4216	2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe	85
PID 2660 wrote to memory of 2032	2660	cmd.exe	87
PID 2660 wrote to memory of 4240	2660	cmd.exe	88
PID 4240 wrote to memory of 5000	4240	eogqz.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4216
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\eogqz.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2660
- - 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:2032
- - \??\c:\eogqz.exe
    c:\eogqz.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-19_22a7e357694cbdb9244ba7fc5f8d8884_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4240
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\iwgmg\lnonl.dll",GetWindowClass c:\eogqz.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:5000

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

eogqz.exe

Path C:\eogqz.exe
Size 115KB
SHA256 d5329d99ce64e882d50c3606833b15eae1b1bdfbb2c83e2724e2b6c7a662b2b4
MD5 51b2bbf730d2f457961f2f38a4ed7a21
SHA1 a3f610b2ca7dbcbc053bb65e9ddfe5bd979b77f5
SHA512 7671ef3ca62c3b5e0bfdb5d3513afb9386559ce248d744a1ac420294ec1608ab1e260d0f3a3a58764e27032546a16ee32d6dac8680d4653408898e9b57aed70a
SSDEEP 1536:vRiAXaKD5gxzmwYEM/D3ozc4I8JboecWtX4Y:piAXaKDeKNnD36cb8tIY
TLSH
T123C3AE02ABF0C6A5E0625CB5467757219EB2FC5A2924832777D6B70FEC30F04EE253A5
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

lnonl.dll

Path \??\c:\iwgmg\lnonl.dll
Size 46KB
SHA256 f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9
MD5 a3fd41430ddcaa55fde840788925406a
SHA1 dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2
SHA512 23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9
SSDEEP 768:2sUfnvxs6iLlhpfFPtnQf7kifD/v7yb9Bh7Cb0VQJojZC/xjTk:2sJT1qf4W/vub9nnV1jZC/xE
TLSH
T19D2302C8A6F08EF3D2F90B7980E046DCDCFDB939877381150566008E7C71057FA446AA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4216-2-0x0000000000880000-0x0000000000B01000-memory.dmp

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memory/4216-3-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/4216-0-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/4240-9-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/4240-8-0x0000000000950000-0x0000000000BD1000-memory.dmp

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memory/5000-12-0x0000000010000000-0x000000001002E000-memory.dmp

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memory/5000-13-0x0000000010001000-0x000000001001E000-memory.dmp

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memory/5000-14-0x0000000010000000-0x000000001002E000-memory.dmp

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memory/5000-16-0x0000000010001000-0x000000001001E000-memory.dmp

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memory/5000-15-0x0000000001340000-0x00000000015C1000-memory.dmp

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memory/5000-23-0x0000000001340000-0x00000000015C1000-memory.dmp

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memory/5000-29-0x0000000001340000-0x00000000015C1000-memory.dmp

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