Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 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:1516
    • 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⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsbB0D2.tmp\System.dll

    Filesize

    11KB

    MD5

    7399323923e3946fe9140132ac388132

    SHA1

    728257d06c452449b1241769b459f091aabcffc5

    SHA256

    5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3

    SHA512

    d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

  • memory/1516-18-0x00000000772F1000-0x0000000077411000-memory.dmp

    Filesize

    1.1MB

  • memory/1516-19-0x00000000772F1000-0x0000000077411000-memory.dmp

    Filesize

    1.1MB

  • memory/1516-20-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB

  • memory/3832-21-0x0000000077378000-0x0000000077379000-memory.dmp

    Filesize

    4KB

  • memory/3832-22-0x0000000077395000-0x0000000077396000-memory.dmp

    Filesize

    4KB

  • memory/3832-35-0x0000000000490000-0x00000000016E4000-memory.dmp

    Filesize

    18.3MB

  • memory/3832-37-0x00000000772F1000-0x0000000077411000-memory.dmp

    Filesize

    1.1MB

  • memory/3832-36-0x0000000000490000-0x00000000016E4000-memory.dmp

    Filesize

    18.3MB

  • memory/3832-38-0x00000000721EE000-0x00000000721EF000-memory.dmp

    Filesize

    4KB

  • memory/3832-39-0x0000000000490000-0x00000000004D8000-memory.dmp

    Filesize

    288KB

  • memory/3832-40-0x0000000037A60000-0x0000000038004000-memory.dmp

    Filesize

    5.6MB

  • memory/3832-41-0x0000000038010000-0x00000000380AC000-memory.dmp

    Filesize

    624KB

  • memory/3832-42-0x00000000721E0000-0x0000000072990000-memory.dmp

    Filesize

    7.7MB

  • memory/3832-44-0x00000000721EE000-0x00000000721EF000-memory.dmp

    Filesize

    4KB

  • memory/3832-45-0x00000000721E0000-0x0000000072990000-memory.dmp

    Filesize

    7.7MB

  • memory/3832-46-0x0000000038610000-0x00000000387D2000-memory.dmp

    Filesize

    1.8MB

  • memory/3832-47-0x00000000387F0000-0x0000000038840000-memory.dmp

    Filesize

    320KB

  • memory/3832-49-0x0000000035470000-0x0000000035502000-memory.dmp

    Filesize

    584KB

  • memory/3832-50-0x0000000035520000-0x000000003552A000-memory.dmp

    Filesize

    40KB