Analysis

  • max time kernel
    36s
  • max time network
    37s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-01-2023 06:42

General

  • Target

    DnsJumper.exe

  • Size

    884KB

  • MD5

    aea6dfbb052b8613b2df44fd2d008d09

  • SHA1

    17434441b4d61320edf8ae506923403c36088d51

  • SHA256

    7e221e7967570b0deca8e1c4f23ed9e39423dcc0733337bcb6e2c08b3b7b9ba1

  • SHA512

    d4ad11a094ea9aa8e47bde543f917ffccb157a8633ab7cb7e0790f3c571cc067c3d62965bf499e630ebd8d0cd8af5e0f31ab9e40ae54ad306fa16aa94f9296d7

  • SSDEEP

    12288:aaWzgMg7v3qnCi5ErQohh0F4qCJ8lnynQS53ENqPXJbRchK:VaHMv6CFrjenynQmU0PXJbRd

Score
7/10

Malware Config

Signatures

  • Unexpected DNS network traffic destination 2 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Enumerates physical storage devices 1 TTPs

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

  • Gathers network information 2 TTPs 5 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 55 IoCs
  • Suspicious use of SendNotifyMessage 55 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DnsJumper.exe
    "C:\Users\Admin\AppData\Local\Temp\DnsJumper.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Windows\SysWOW64\ipconfig.exe
      ipconfig.exe /flushdns
      2⤵
      • Gathers network information
      PID:3856
    • C:\Windows\SysWOW64\ipconfig.exe
      ipconfig.exe /flushdns
      2⤵
      • Gathers network information
      PID:3888
    • C:\Windows\SysWOW64\ipconfig.exe
      ipconfig.exe /flushdns
      2⤵
      • Gathers network information
      PID:1120
    • C:\Windows\SysWOW64\ipconfig.exe
      ipconfig.exe /flushdns
      2⤵
      • Gathers network information
      PID:3644
    • C:\Windows\SysWOW64\ipconfig.exe
      ipconfig.exe /flushdns
      2⤵
      • Gathers network information
      PID:4160
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x42c 0x2f4
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4604

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1120-134-0x0000000000000000-mapping.dmp

  • memory/3644-135-0x0000000000000000-mapping.dmp

  • memory/3856-132-0x0000000000000000-mapping.dmp

  • memory/3888-133-0x0000000000000000-mapping.dmp

  • memory/4160-136-0x0000000000000000-mapping.dmp