Analysis

  • max time kernel
    115s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2024 08:18

General

  • Target

    2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe

  • Size

    70KB

  • MD5

    0f42ebc2d3d4ffb179abb3101cb8b8c0

  • SHA1

    a8893cde6977ffce74282bfcb76e8a666d54c8a9

  • SHA256

    2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89

  • SHA512

    e4264bf273dbed238000ef446aaf3d40ba9348d2f23fc0b8783821bf0bbfa099ccf34173433b0f46823cd01952e697148a0fe52aa989e9cf10020f63ebdd3c4e

  • SSDEEP

    768:urItKyw5WHXfQmjIiIk9ecAaHSHMb96FyXRDLdXDffff3lkkkmp:ur3Z5IfQmv81ayo2yXpZXX

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe
    "C:\Users\Admin\AppData\Local\Temp\2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\mewhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2E08FE~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3832
  • C:\Windows\Debug\mewhost.exe
    C:\Windows\Debug\mewhost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3664
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3840,i,11391966286255097843,10588851088187498028,262144 --variations-seed-version --mojo-platform-channel-handle=4352 /prefetch:8
    1⤵
      PID:2076

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\debug\mewhost.exe

      Filesize

      70KB

      MD5

      03b802db4b9e4519df06524683f3a381

      SHA1

      628c16ea48d01c1763a4fe555eb3df110bf8a5ec

      SHA256

      39bcd206f99cb8b7b1cb6ffe66cedabb8a78de03626062008409a20c6ad24773

      SHA512

      18b32ec114df316bbb8652eb0442b09372b5ace36fffd72069858954242ab450bbfc1fac780a04a5298720ffef7d22c160afba2de2c65aa076c3105b738381da