farfli | c63cd22b9408a5349a345cef714a203146d4c6127b9f88c587e89b2352bf1322

General

Target
2026-10-22_b25c29169f3b6e885a94e76e4d59e191_elex_wannacry.exe
Size 93KB
Sample261024-adc6caex6s
SHA256 c63cd22b9408a5349a345cef714a203146d4c6127b9f88c587e89b2352bf1322
MD5 b25c29169f3b6e885a94e76e4d59e191
SHA1 d5d7549c73d84290d66d2c548a34c6324daa40e3
SHA512 d3017aa095f0bbfebf275ac76067869d5028cd1944fc73065cf14fec4aff468c89bc0462c259cf6fa02771a4185470051300a04180ea674e9d7e47ca1b0739d7
SSDEEP 1536:vRiAXaKD5gxzmwYEM/D3ozc4I8JboecWtX4:piAXaKDeKNnD36cb8tI
TLSH
T1CD93BE46ABF08761E0618DB509735B629EB3BC2B1930865B7BD3BA1E9C34F40EE21315
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 1 IoCs

resource	yara_rule
behavioral2/memory/4392-10-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 1 IoCs

resource	yara_rule
behavioral2/memory/4392-10-0x0000000010000000-0x000000001002E000-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
7	4392	rundll32.exe
8	4392	rundll32.exe
9	4392	rundll32.exe
11	4392	rundll32.exe
12	4392	rundll32.exe
15	4392	rundll32.exe
16	4392	rundll32.exe
17	4392	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
1164	dqtbs.exe

Executes dropped EXE 1 IoCs

pid	Process
1164	dqtbs.exe

Loads dropped DLL 1 IoCs

pid	Process
4392	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-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\bhsaz\\lmiyggpf.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)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\s:	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
4676	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	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	2026-10-22_b25c29169f3b6e885a94e76e4d59e191_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	dqtbs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
4676	cmd.exe
4312	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
4312	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4392	rundll32.exe
4392	rundll32.exe
4392	rundll32.exe
4392	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5068	2026-10-22_b25c29169f3b6e885a94e76e4d59e191_elex_wannacry.exe
1164	dqtbs.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5068 wrote to memory of 4676	5068	2026-10-22_b25c29169f3b6e885a94e76e4d59e191_elex_wannacry.exe	90
PID 4676 wrote to memory of 4312	4676	cmd.exe	92
PID 4676 wrote to memory of 1164	4676	cmd.exe	93
PID 1164 wrote to memory of 4392	1164	dqtbs.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-10-22_b25c29169f3b6e885a94e76e4d59e191_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-22_b25c29169f3b6e885a94e76e4d59e191_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5068
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\dqtbs.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_b25c29169f3b6e885a94e76e4d59e191_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:4676
- - 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:4312
- - \??\c:\dqtbs.exe
    c:\dqtbs.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_b25c29169f3b6e885a94e76e4d59e191_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1164
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\bhsaz\lmiyggpf.dll",GetWindowClass c:\dqtbs.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)
      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:4392

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Pre-OS Boot

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

2

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

lmiyggpf.dll

Path \??\c:\bhsaz\lmiyggpf.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

dqtbs.exe

Path \??\c:\dqtbs.exe
Size 93KB
SHA256 d81d37e9256b69738e7ce2358410e8be46e56da66353352a8dc301e9b07834f4
MD5 36c7d60e69184b6cc1e6ee124a11ca49
SHA1 8c177774a49fc29e1702fb3a29391f2a13510009
SHA512 1bee2856813d0a6ce717043d8f50ed8d65deb122422cc4d3f5e3fd40245039233a51b63ac4faa47d296e2269440a754e996770795faff2da02c0ef375ed301e8
SSDEEP 1536:vRiAXaKD5gxzmwYEM/D3ozc4I8JboecWtX4Q:piAXaKDeKNnD36cb8tIQ
TLSH
T18993AE46ABF08761E0618DB509735B629EB3FC2B1934865B7BD3BA1E9C34F40EE21315
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1164-6-0x0000000000400000-0x000000000041A000-memory.dmp

Download

memory/4392-9-0x0000000010000000-0x000000001002E000-memory.dmp

Download

memory/4392-10-0x0000000010000000-0x000000001002E000-memory.dmp

Download

memory/5068-0-0x0000000000400000-0x000000000041A000-memory.dmp

Download

memory/5068-2-0x0000000000400000-0x000000000041A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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