farfli | 9d342c13657a0fea39066033d54c7902d1b363027f904e132df9a1ef4b74d506

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
23/04/2026, 19:02

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General

Target
2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_elex_wannacry.exe
Size 210KB
Sample260423-xpq8nsfy21
SHA256 9d342c13657a0fea39066033d54c7902d1b363027f904e132df9a1ef4b74d506
MD5 1e4e9cd941c4ad65a1f5f4e4c9c3f11a
SHA1 ca8b1a302365b5e37169337d9145109b87139874
SHA512 f7759fb55b1326da6256374e172a5fbe0a43c033387c9d7e36b29780e5f2c07a867a6e940f8c6dab9c07f06fe9bd743d50d8deaff1ea8fe94c5d93541522c2d0
SSDEEP 3072:TfwwHEzrV5x5tMBql0RZ4FjCDnO8XjDDQuMHNbwDXkLh16oVHe:zwgErtcql+ZHn1PDQfwDXkN1Z
TLSH
T1B124F11B3A8189AFF00BFB7A9646F4C79BD160683F40762F034C65EE5B213CAC59516E
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/3696-12-0x0000000010000000-0x000000001006A000-memory.dmp	family_farfli
behavioral2/memory/3696-14-0x0000000010000000-0x000000001006A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/3696-12-0x0000000010000000-0x000000001006A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3696-14-0x0000000010000000-0x000000001006A000-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
1	3696	rundll32.exe
2	3696	rundll32.exe
3	3696	rundll32.exe
4	3696	rundll32.exe
6	3696	rundll32.exe
7	3696	rundll32.exe
8	3696	rundll32.exe
11	3696	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3348	qiqcvfjos.exe

Executes dropped EXE 1 IoCs

pid	Process
3348	qiqcvfjos.exe

Loads dropped DLL 1 IoCs

pid	Process
3696	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-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\fshxb\\pahip.dll\",encore"	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\n:	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)	\??\b:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3696	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\fshxb	qiqcvfjos.exe
File created	\??\c:\Program Files\fshxb\pahip.dll	qiqcvfjos.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	qiqcvfjos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_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
1820	cmd.exe
4472	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
4472	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe
3696	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3696	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2776	2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_elex_wannacry.exe
3348	qiqcvfjos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 1820	2776	2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_elex_wannacry.exe	80
PID 1820 wrote to memory of 4472	1820	cmd.exe	82
PID 1820 wrote to memory of 3348	1820	cmd.exe	83
PID 3348 wrote to memory of 3696	3348	qiqcvfjos.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qiqcvfjos.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1820
- - 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:4472
- - C:\Users\Admin\AppData\Local\Temp\qiqcvfjos.exe
    C:\Users\Admin\AppData\Local\Temp\\qiqcvfjos.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-23_1e4e9cd941c4ad65a1f5f4e4c9c3f11a_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:3348
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\fshxb\pahip.dll",encore C:\Users\Admin\AppData\Local\Temp\qiqcvfjos.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)
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3696

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

qiqcvfjos.exe

Path C:\Users\Admin\AppData\Local\Temp\qiqcvfjos.exe
Size 211KB
SHA256 ab70116639bc8905eeda059841f8384196a9294f809b156dd0a5f5f5e1fc7bfd
MD5 6f3f33236dd7242c35fb83e61a2b3040
SHA1 e16e2520d68a2beb0ce35443253aa512861b72f6
SHA512 dc05cbbeda882ba694abe3fd9c082c4817eb800a7233c146d23f7acfea1b75ed8dab8abdbcfba18cf2bed7688d65dd0b9eaeaee6a801c0e420ef6e2b5af59478
SSDEEP 3072:TfwwHEzrV5x5tMBql0RZ4FjCDnO8XjDDQuMHNbwDXkLh16oVHeL:zwgErtcql+ZHn1PDQfwDXkN1Zi
TLSH
T13B24F11B3A8189AFF00BFB7A9646F4C79BD160683F40762F034C65AE5F213CAC59516E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

pahip.dll

Path \??\c:\Program Files\fshxb\pahip.dll
Size 168KB
SHA256 8027ee862eb27029f74aa3cbc0a62320349a2f6163830c52b7eb591141e53f00
MD5 2debe522b1b129fa814d74e4ac3be646
SHA1 6747c7733d4efd73c65af1292ddb1a8a05057d92
SHA512 1e80f162a19a17c30e46efe3db100691cdaac69e140bc10b26bdc802d1d4b584744c09002b5fd921ac94178afad4c33c0e3254611ca35d78113934c23b3842c8
SSDEEP 3072:pH7O5yt++RbfRugmVWo4GYessewQpCpxGWUJtff+gVBLpBuyCjAyFzuz:pbay5fR5eOrixfYtff+g7LpBVCjAz
TLSH
T143F3E033F78247BAE0890375151BEC7FBC20A690837E8E2792CF519A2F156E56D5C3A1
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2776-0-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/2776-2-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3348-7-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3696-11-0x0000000010052000-0x0000000010053000-memory.dmp

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memory/3696-10-0x0000000010000000-0x000000001006A000-memory.dmp

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memory/3696-12-0x0000000010000000-0x000000001006A000-memory.dmp

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memory/3696-14-0x0000000010000000-0x000000001006A000-memory.dmp

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