Analysis

  • max time kernel
    150s
  • max time network
    279s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 16:13

General

  • Target

    RF_DHL KULI500796821.PDF.exe

  • Size

    747KB

  • MD5

    27950496141d3583eafb12c7b42ac9a5

  • SHA1

    708989cb471cf641b34587ac22c110585aeaae76

  • SHA256

    a4f9afdb0335a81fbca040cbebd5a514e1e11d668022048823e465b4c752793d

  • SHA512

    dbfd85fe83a6cb45823305d63286fd15f6b9dce76d4705bfcd30c73510a683b7f414882c147e4f9928bd52398de5a47010f9a09a02a90931aa8f8ec91a7a3f4e

  • SSDEEP

    12288:MMykhMOoltiJVv+64qYAJS6FQHRJqc2pis3+m9QXM88Ut7hSLTZ87kR:nykh5oDiJkQZG8piqmXM8bhSR5

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

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

  • 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
  • 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 SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RF_DHL KULI500796821.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\RF_DHL KULI500796821.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\RF_DHL KULI500796821.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\RF_DHL KULI500796821.PDF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RF_DHL KULI500796821.PDF.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3368-4-0x0000000005A80000-0x0000000005A8A000-memory.dmp

    Filesize

    40KB

  • memory/3368-3-0x00000000058B0000-0x0000000005942000-memory.dmp

    Filesize

    584KB

  • memory/3368-10-0x0000000009310000-0x000000000939C000-memory.dmp

    Filesize

    560KB

  • memory/3368-9-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/3368-5-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/3368-6-0x0000000005BC0000-0x0000000005C5C000-memory.dmp

    Filesize

    624KB

  • memory/3368-7-0x0000000005D80000-0x0000000005D9C000-memory.dmp

    Filesize

    112KB

  • memory/3368-8-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

    Filesize

    4KB

  • memory/3368-15-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/3368-2-0x0000000005F20000-0x00000000064C4000-memory.dmp

    Filesize

    5.6MB

  • memory/3368-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

    Filesize

    4KB

  • memory/3368-1-0x0000000000E20000-0x0000000000EDE000-memory.dmp

    Filesize

    760KB

  • memory/4912-14-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-19-0x0000000006C90000-0x0000000006CE0000-memory.dmp

    Filesize

    320KB

  • memory/4912-16-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-17-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-18-0x0000000006DF0000-0x0000000006FB2000-memory.dmp

    Filesize

    1.8MB

  • memory/4912-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB