farfli | ae0ab78f481b55274e9f65a5c2b9feb05993d0d414b88fcba7161149f3771ef6

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
09/07/2026, 07:59

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General

Target
2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe
Size 85KB
Sample260709-jvx2hsft5t
SHA256 ae0ab78f481b55274e9f65a5c2b9feb05993d0d414b88fcba7161149f3771ef6
MD5 c748887835072a8977f65c2d79f06e9c
SHA1 dc86e969ce5ec107fedd6f37384c4e238966e280
SHA512 0c3eddcda42d1b49c2f0af515b6f40dc59270dcdf038d96962d32806f5d1f074298f36065bb06d0699efc1e4eaf3388233ffba0cfbbb20c1b1d38a870405907e
SSDEEP 1536:m/14ZaKO/myxZmAijMcCwVVydoM1bKAQAH9M53e+iWtnSd:a14ZaKOTZSMcJVgDKxAH9MhtfSd
TLSH
T1D983CF232FBB0135DD549F711E6B2669E6F2BD36212082B28B5CDD8DA93CE44DB0171C
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 3 IoCs

resource	yara_rule
behavioral1/memory/4628-12-0x0000000010000000-0x0000000010021000-memory.dmp	family_farfli
behavioral1/memory/4628-15-0x0000000010000000-0x0000000010021000-memory.dmp	family_farfli
behavioral1/memory/4628-16-0x0000000010000000-0x0000000010021000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/4628-12-0x0000000010000000-0x0000000010021000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4628-15-0x0000000010000000-0x0000000010021000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4628-16-0x0000000010000000-0x0000000010021000-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
10	4628	rundll32.exe
20	4628	rundll32.exe
21	4628	rundll32.exe
36	4628	rundll32.exe
48	4628	rundll32.exe
61	4628	rundll32.exe
71	4628	rundll32.exe
83	4628	rundll32.exe

Deletes itself 1 IoCs

pid	Process
1900	ypajf.exe

Executes dropped EXE 1 IoCs

pid	Process
1900	ypajf.exe

Loads dropped DLL 1 IoCs

pid	Process
4628	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-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ycldq\\qlqbm.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)	\??\l:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	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)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	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

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	ypajf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-09_c748887835072a8977f65c2d79f06e9c_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
4416	cmd.exe
3964	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
3964	PING.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4628	rundll32.exe
4628	rundll32.exe
4628	rundll32.exe
4628	rundll32.exe
4628	rundll32.exe
4628	rundll32.exe
4628	rundll32.exe
4628	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
620	2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe
1900	ypajf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 620 wrote to memory of 4416	620	2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe	85
PID 4416 wrote to memory of 3964	4416	cmd.exe	87
PID 4416 wrote to memory of 1900	4416	cmd.exe	88
PID 1900 wrote to memory of 4628	1900	ypajf.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:620
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ypajf.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4416
- - 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:3964
- - \??\c:\ypajf.exe
    c:\ypajf.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-09_c748887835072a8977f65c2d79f06e9c_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1900
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ycldq\qlqbm.dll",GetWindowClass c:\ypajf.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:4628

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

ypajf.exe

Path C:\ypajf.exe
Size 85KB
SHA256 97470eed2f28d987332688e3e4d91d15d724788ad5d212ec50f6ca2981f2d0d3
MD5 21bcb0266ac10acaa9e7cbf126cabb2d
SHA1 7e878b03d36e87eff74171dc8878530a5c0a6f4d
SHA512 5304a9e9b02ab3f70b8a86995690feb118129242fba5e5e2b02b5634d0a0b061c38f1622f6bc87e321033d111bfdba1a08a24d61816c0af0433b5365d0112187
SSDEEP 1536:m/14ZaKO/myxZmAijMcCwVVydoM1bKAQAH9M53e+iWtnSdC:a14ZaKOTZSMcJVgDKxAH9MhtfSdC
TLSH
T10383CF232FBB4175DD44AF711E6B2669E6F2BD36212082768B5C9D8DAA3CE44DB0131C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qlqbm.dll

Path \??\c:\ycldq\qlqbm.dll
Size 43KB
SHA256 0b747c32730f2ad29b44299054bc22f8075702b081e91edaaead528abca227d2
MD5 0164aeb78f4d2181e817a9a6b0ad22f1
SHA1 c56c6a743e48e8652707a34e4cddc1f645f140ea
SHA512 e69ad90790d8062a903954f7ea85cacd241113afaf0eb16098f473835cffcda6e1f9fa9844a8618cc297fffa2e6ff7d458f9ebb2ce3febf7ffd683ffd6ad44f5
SSDEEP 768:2DdBa8mqIOiSUZrBGhvQLq6UYiaKRsRMwwY2BjkTrXW/VJZ581swUqHhiQREQoJs:kwqnPUb+v0q6UY+sRMwwY2Jkal+1ZUqJ
TLSH
T19613F133EACCDFDFF8A05271C576D0FCD337AC2849669A0395A0219D9D60948B878F66
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/620-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/620-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1900-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4628-10-0x0000000010000000-0x0000000010021000-memory.dmp

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memory/4628-11-0x0000000001010000-0x0000000001012000-memory.dmp

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memory/4628-13-0x0000000001010000-0x0000000001012000-memory.dmp

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memory/4628-12-0x0000000010000000-0x0000000010021000-memory.dmp

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memory/4628-15-0x0000000010000000-0x0000000010021000-memory.dmp

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memory/4628-16-0x0000000010000000-0x0000000010021000-memory.dmp

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