Resubmissions

07/02/2023, 07:12

230207-h1ypkaaa39 6

07/02/2023, 06:47

230207-hkmx5ada5t 3

Analysis

  • max time kernel
    143s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/02/2023, 07:12

General

  • Target

    Fwd- [Nexdigm] Payment - Invoice #IM33-1753-S3-1 Pay Remittance for 2023-02-01, 04-53.eml

  • Size

    506KB

  • MD5

    79d1f34e89466ea020de7701038b1235

  • SHA1

    37442643cb290c354fda0c7abb4edbbeb68ea844

  • SHA256

    38848e4c271c75bcdea254774e94a5e0806104235fe85920c4b160c510780ce6

  • SHA512

    8de63fc5b68163159638add687698b239054477e4bf39d94566f26edcaf5bef21415c6b52a15ed75a6b7c183530df0b6a94840617d00f4eba3ea85e6adb7be7c

  • SSDEEP

    6144:kyFP2/eReiIvwyJQusiqJ2OJVEy6fMRiVHXKvk2yKoS3CmlPT5j2Td7a45:+e1IvW2JMGXQIKosCqATx5

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 26 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\Fwd- [Nexdigm] Payment - Invoice #IM33-1753-S3-1 Pay Remittance for 2023-02-01, 04-53.eml"
    1⤵
    • Modifies registry class
    • NTFS ADS
    PID:4260
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Program Files\Windows NT\Accessories\WORDPAD.EXE
      "C:\Program Files\Windows NT\Accessories\WORDPAD.EXE" "C:\Users\Admin\AppData\Local\Temp\Fwd- [Nexdigm] Payment - Invoice #IM33-1753-S3-1 Pay Remittance for 2023-02-01, 04-53.eml"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1296
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:632

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Fwd- [Nexdigm] Payment - Invoice #IM33-1753-S3-1 Pay Remittance for 2023-02-01, 04-53.eml

      Filesize

      506KB

      MD5

      79d1f34e89466ea020de7701038b1235

      SHA1

      37442643cb290c354fda0c7abb4edbbeb68ea844

      SHA256

      38848e4c271c75bcdea254774e94a5e0806104235fe85920c4b160c510780ce6

      SHA512

      8de63fc5b68163159638add687698b239054477e4bf39d94566f26edcaf5bef21415c6b52a15ed75a6b7c183530df0b6a94840617d00f4eba3ea85e6adb7be7c