Analysis

  • max time kernel
    21s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    30-07-2024 17:34

General

  • Target

    y.exe

  • Size

    224KB

  • MD5

    4c335d3e3958413df7b9c81b7ac29100

  • SHA1

    a43f7ae504164fd29a9bb7f88430efeb396ed69f

  • SHA256

    7ba28499d2c1399eba708b00fdc97095f938d5755d148fbe5626ffa68b8e5385

  • SHA512

    28008caa99955df01abf2d9756c204b0b4105659ea1150c32a54044f60b3ac7a1c0631530e6b6e3bdd377ecaa6aac4c7845691262d18979cc1f74709a13bfce2

  • SSDEEP

    6144:floZM+rIkd8g+EtXHkv/iD4SQzYkK8eucHi:doZtL+EP8RR

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • 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 AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\y.exe
    "C:\Users\Admin\AppData\Local\Temp\y.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2072

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2184-0-0x000007FEF5693000-0x000007FEF5694000-memory.dmp

    Filesize

    4KB

  • memory/2184-1-0x00000000002D0000-0x000000000030E000-memory.dmp

    Filesize

    248KB

  • memory/2184-2-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

    Filesize

    9.9MB

  • memory/2184-3-0x000007FEF5693000-0x000007FEF5694000-memory.dmp

    Filesize

    4KB