Analysis

  • max time kernel
    93s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/09/2024, 13:35

General

  • Target

    micstream-setup-x64.exe

  • Size

    1.1MB

  • MD5

    a4f86bee27071fba654ca442d52c6a5a

  • SHA1

    90f947ecafb26683842765a446e184a84869d36f

  • SHA256

    16c665c37bbaf5563de58cb57b97b75bdd5b319db112633728ba41744fa48932

  • SHA512

    70d3113d5783b014fdbb66c132c1d7305c616104d7850d8635c1d94f30fd3c8ccb1b6a66e08701713ae6f478a13c83b75f433bbc6cc8add2021e2244a0b85669

  • SSDEEP

    24576:Hdppd60FSCOxtwYXIopInNPQTnxx6dIV81tPK:HdppPFSCEt/IopiY5V8zi

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\micstream-setup-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\micstream-setup-x64.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\system32\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /package "C:\Users\Admin\AppData\Local\Temp\micstream-setup.msi"
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4860
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 8BFE3874424ED95D527A53D5C372D5D9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSI6DFC.tmp

    Filesize

    285KB

    MD5

    b77a2a2768b9cc78a71bbffb9812b978

    SHA1

    b70e27eb446fe1c3bc8ea03dabbee2739a782e04

    SHA256

    f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0

    SHA512

    a8b16bc60f8559c78c64ca9e85cd7fd704bba1f55b362465b7accef1bb853d1c9616995a35f972256c57fbe877ce880398ba1fbceaa658604883aa12dcbc4f57

  • C:\Users\Admin\AppData\Local\Temp\micstream-setup.msi

    Filesize

    1.1MB

    MD5

    6d88aee5f872c03a654690c5e56bab10

    SHA1

    20542f43c2478e4bca0d41fa1475c1d8e1d2d0b9

    SHA256

    dfe45d904ab74bde2331849eb886010cd920c899cbd68c34bf2ea2f18e4245cf

    SHA512

    5a85a30bed7c89a4c068404c4777ebeb57b58e3bc01c904230ec57eb875df03f1848440ba6486f1fb4d0fd27aefd18cddb2c3426bc645841f1b9bfdddf7eeed7

  • memory/2600-0-0x00007FFAAB233000-0x00007FFAAB235000-memory.dmp

    Filesize

    8KB

  • memory/2600-1-0x0000019A5DE00000-0x0000019A5DF22000-memory.dmp

    Filesize

    1.1MB