farfli | affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d

Analysis

max time kernel
150s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/08/2026, 06:32

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General

Target
affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.exe
Size 109KB
Sample260808-hat9fsvzat
SHA256 affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d
MD5 4d27dcc052b291dfc27767605ba02a5b
SHA1 3c8fd12b87a91af5703bf0f37040267f90e8d099
SHA512 90d78650489f60d58e16f9e3a96a36d74037665c47962d2cde4367360d71a5cbf404fa69bbb8dc7c70ce3a4af122af2b4e3d22e5d392b808bf78aec25063301f
SSDEEP 1536:vRiAXaKD5gxzmwYEM/D3ozc4I8JboecWtX4+:piAXaKDeKNnD36cb8tI+
TLSH
T12CB39E42ABF0C6A5E0665CB5067757619E72FC2A2924832777D6B70FEC30F04EE25354
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 4 IoCs

resource	yara_rule
behavioral2/memory/1128-9-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli
behavioral2/memory/1128-10-0x0000000010001000-0x000000001001E000-memory.dmp	family_farfli
behavioral2/memory/1128-11-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli
behavioral2/memory/1128-12-0x0000000010001000-0x000000001001E000-memory.dmp	family_farfli

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
1	1128	rundll32.exe
2	1128	rundll32.exe
3	1128	rundll32.exe
4	1128	rundll32.exe
5	1128	rundll32.exe
6	1128	rundll32.exe
7	1128	rundll32.exe
8	1128	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3544	tvpxkeie.exe

Executes dropped EXE 1 IoCs

pid	Process
3544	tvpxkeie.exe

Loads dropped DLL 1 IoCs

pid	Process
1128	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-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\pzaqw\\xcxie.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)	\??\a:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	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
6180	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	tvpxkeie.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.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
4740	PING.EXE
6180	cmd.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
4740	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1128	rundll32.exe
1128	rundll32.exe
1128	rundll32.exe
1128	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
6732	affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.exe
3544	tvpxkeie.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 6732 wrote to memory of 6180	6732	affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.exe	88
PID 6180 wrote to memory of 4740	6180	cmd.exe	90
PID 6180 wrote to memory of 3544	6180	cmd.exe	91
PID 3544 wrote to memory of 1128	3544	tvpxkeie.exe	92

C:\Users\Admin\AppData\Local\Temp\affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.exe
"C:\Users\Admin\AppData\Local\Temp\affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6732
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\tvpxkeie.exe "C:\Users\Admin\AppData\Local\Temp\affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.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:6180
- - 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:4740
- - \??\c:\tvpxkeie.exe
    c:\tvpxkeie.exe "C:\Users\Admin\AppData\Local\Temp\affd588a06e4ec7fb58c7954f6cd0175c32b9c938dc8866ee8db9b0960a75c8d.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3544
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\pzaqw\xcxie.dll",GetWindowClass c:\tvpxkeie.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:1128

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

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Downloads

xcxie.dll

Path \??\c:\pzaqw\xcxie.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

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tvpxkeie.exe

Path \??\c:\tvpxkeie.exe
Size 110KB
SHA256 743bef76bac9745534e935c984c27889e2d293f7545b196143acf25b599f0a3b
MD5 d3573ce834816289e78c83ed5d7a1ee8
SHA1 d024965a4407bf3925e949fd0f9a8fed4de009f8
SHA512 0504d93346c78e5af68698254498e8e04174f4d308444f0f081ed4486154b6e0926d5c84949a28d84d948a390adc21206ad52c370924edff654c647b296f7367
SSDEEP 1536:vRiAXaKD5gxzmwYEM/D3ozc4I8JboecWtX45:piAXaKDeKNnD36cb8tI5
TLSH
T10EB39E42ABF0C7A5E0665CB5067757619E72FC2A2924832777D6B70FEC30F04EA253A4
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1128-9-0x0000000010000000-0x000000001002E000-memory.dmp

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memory/1128-10-0x0000000010001000-0x000000001001E000-memory.dmp

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memory/1128-11-0x0000000010000000-0x000000001002E000-memory.dmp

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memory/1128-12-0x0000000010001000-0x000000001001E000-memory.dmp

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memory/3544-6-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/6732-0-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/6732-2-0x0000000000400000-0x000000000041A000-memory.dmp

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