Analysis

  • max time kernel
    156s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    14-02-2022 07:46

General

  • Target

    4946fa210bc8de23bed3c8d647b49fb102d0bc0ce1a17c94ba5cdaa61e770a84.exe

  • Size

    9KB

  • MD5

    5519824937aeb5ab25440acf1686ec1c

  • SHA1

    22c6833edf5c94fbaf7a02ebebac0270396df02f

  • SHA256

    4946fa210bc8de23bed3c8d647b49fb102d0bc0ce1a17c94ba5cdaa61e770a84

  • SHA512

    81a19091087da4a919d8ed2725fadc101517a626bc70ff7125ac5c5ca28f92474986e4ad8db99361e0238bd88976d180dba0953390111e7d898075e2018c826b

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\4946fa210bc8de23bed3c8d647b49fb102d0bc0ce1a17c94ba5cdaa61e770a84.exe
    "C:\Users\Admin\AppData\Local\Temp\4946fa210bc8de23bed3c8d647b49fb102d0bc0ce1a17c94ba5cdaa61e770a84.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2588
    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe
      "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
      2⤵
      • Executes dropped EXE
      PID:3208
  • 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:2584
  • 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:3544

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2584-132-0x0000020142B70000-0x0000020142B80000-memory.dmp

    Filesize

    64KB

  • memory/2584-133-0x0000020143120000-0x0000020143130000-memory.dmp

    Filesize

    64KB

  • memory/2584-134-0x00000201457F0000-0x00000201457F4000-memory.dmp

    Filesize

    16KB