Analysis

  • max time kernel
    15s
  • max time network
    18s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02-07-2024 19:48

General

  • Target

    SolaraBoostrap .exe

  • Size

    229KB

  • MD5

    b7741b6a5e172eff7edfdc9ab19a649f

  • SHA1

    9c80488d840a98dac3860e21f1fa6be89cc3e898

  • SHA256

    7f1e40b82781c6149dd6f963e81636d226fc993f11e0c842f0df1b3e7a10caf8

  • SHA512

    d1e8a4005dd8554a45434568025a19270c871e778fb640daf7eefcb9aaf11a487c5b6c68d88572727888adf7207b0cafc9f97021557ce4c8437afa6750714552

  • SSDEEP

    6144:tloZMNrIkd8g+EtXHkv/iD4gnEt5nsAvcOXZkQlTLb8e1msi:voZ2L+EP8gnEt5nsAvcOXZkQljW

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SolaraBoostrap .exe
    "C:\Users\Admin\AppData\Local\Temp\SolaraBoostrap .exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1004

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2796-0-0x00007FF884DD3000-0x00007FF884DD4000-memory.dmp

    Filesize

    4KB

  • memory/2796-1-0x00000270B2ED0000-0x00000270B2F10000-memory.dmp

    Filesize

    256KB

  • memory/2796-2-0x00007FF884DD0000-0x00007FF8857BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2796-4-0x00007FF884DD0000-0x00007FF8857BC000-memory.dmp

    Filesize

    9.9MB