Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-11-2024 14:27

General

  • Target

    Factura Honorarios 2024-11-04.exe

  • Size

    829KB

  • MD5

    d9aeb1e99a348859d87a8fc58a3c6147

  • SHA1

    d568677a26342609a0ca75d9a03b4f5123c505a1

  • SHA256

    93cd630026182d693fec819abe05948efd94f9249ba58ed590055473e9e951ef

  • SHA512

    81218882e7a7fec98fbe99ba445ba15ba73f5320e9b5c0fcd3634af69a1d4e90df5ee1b72997ef93bc9c5adefc7113e2e6f5909c53363a7abf5b15b7d03389bd

  • SSDEEP

    24576:rbDc7+iLqgCBLqNATwJe9YESd4+/dD+lK:rbDceDLOSBdSd4XI

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7807279596:AAEZM1QwkCh738-y0Qmnc3ubaoLMl6bUCVw/sendMessage?chat_id=7267131103

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Factura Honorarios 2024-11-04.exe
    "C:\Users\Admin\AppData\Local\Temp\Factura Honorarios 2024-11-04.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Users\Admin\AppData\Local\Temp\Factura Honorarios 2024-11-04.exe
      "C:\Users\Admin\AppData\Local\Temp\Factura Honorarios 2024-11-04.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsj96E4.tmp\System.dll

    Filesize

    11KB

    MD5

    7399323923e3946fe9140132ac388132

    SHA1

    728257d06c452449b1241769b459f091aabcffc5

    SHA256

    5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3

    SHA512

    d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

  • memory/2332-18-0x0000000077351000-0x0000000077452000-memory.dmp

    Filesize

    1.0MB

  • memory/2332-19-0x0000000077350000-0x00000000774F9000-memory.dmp

    Filesize

    1.7MB

  • memory/2844-20-0x0000000077350000-0x00000000774F9000-memory.dmp

    Filesize

    1.7MB

  • memory/2844-21-0x0000000000490000-0x00000000014F2000-memory.dmp

    Filesize

    16.4MB

  • memory/2844-41-0x0000000000490000-0x00000000014F2000-memory.dmp

    Filesize

    16.4MB

  • memory/2844-42-0x0000000000490000-0x00000000004D8000-memory.dmp

    Filesize

    288KB