Analysis

  • max time kernel
    69s
  • max time network
    118s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    24/06/2020, 13:13

General

  • Target
    regasm.exe
  • Size 494KB
  • Sample200624-m2cmj7desj
  • SHA256 d86d0905e0be4fe91c68a6a80e48d40fe3d73c7527ce6e090068d38b34e534fd
  • MD5 SHA1 SHA512
Score
7/10

Malware Config

Signatures

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 224 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.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\regasm.exe
    "C:\Users\Admin\AppData\Local\Temp\regasm.exe"
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3064

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3064-0-0x0000000000400000-0x0000000000450000-memory.dmp