Analysis

  • max time kernel
    162s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    14-02-2022 08:19

General

  • Target

    19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe

  • Size

    29KB

  • MD5

    1fa46b0e122c210a6dedfbd9e4b73f4c

  • SHA1

    9f9a8a087388416dbd84ab93371bcd38bd617d3d

  • SHA256

    19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176

  • SHA512

    7e1587148fb0b1435d87323baa476956decaf130d0689ea5bf9241571b99850f361ac67824ba213bd62b2ab98331f5e8ecba0947ea3ba0b5ea8befbe76c7f9bc

Score
10/10

Malware Config

Signatures

  • Upatre

    Upatre is a generic malware downloader.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe
    "C:\Users\Admin\AppData\Local\Temp\19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe
      "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
      2⤵
      • Executes dropped EXE
      PID:2524
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1756
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1756-133-0x000001FF8ED70000-0x000001FF8ED80000-memory.dmp

    Filesize

    64KB

  • memory/1756-134-0x000001FF8F420000-0x000001FF8F430000-memory.dmp

    Filesize

    64KB

  • memory/1756-135-0x000001FF91AF0000-0x000001FF91AF4000-memory.dmp

    Filesize

    16KB

  • memory/5052-130-0x0000000002490000-0x0000000002491000-memory.dmp

    Filesize

    4KB