Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    08/08/2024, 00:53

General

  • Target

    939e2a50370e4f7e641f7db0415925294b4d9e6704c56abda3d7c3d000650ffd.exe

  • Size

    388KB

  • MD5

    437061eecf8e0d4a5882238aa581b9e9

  • SHA1

    441f22d0835170fcffa8da65e7a035c229b6e315

  • SHA256

    939e2a50370e4f7e641f7db0415925294b4d9e6704c56abda3d7c3d000650ffd

  • SHA512

    4e52228ac20d3d685de0bf6bf439d4ef8996bb36d1adc9820de11ecb3200fb5119dd018f7456cf80575d1e4992219343f7d7084c905f73c2ae27efd5f5670b02

  • SSDEEP

    12288:R2iNY2iNY2iNY2iNY2iNY2iNY2iNY2iNF+pABsJ:R1a1a1a1a1a1a1a1O

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 56 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\939e2a50370e4f7e641f7db0415925294b4d9e6704c56abda3d7c3d000650ffd.exe
    "C:\Users\Admin\AppData\Local\Temp\939e2a50370e4f7e641f7db0415925294b4d9e6704c56abda3d7c3d000650ffd.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\AppData\Local\Temp\AarSvc.dll.exe
      "C:\Users\Admin\AppData\Local\Temp\AarSvc.dll.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Windows\system32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\AarSvc.dll.exe" "AarSvc.dll.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AarSvc.dll.exe

    Filesize

    388KB

    MD5

    437061eecf8e0d4a5882238aa581b9e9

    SHA1

    441f22d0835170fcffa8da65e7a035c229b6e315

    SHA256

    939e2a50370e4f7e641f7db0415925294b4d9e6704c56abda3d7c3d000650ffd

    SHA512

    4e52228ac20d3d685de0bf6bf439d4ef8996bb36d1adc9820de11ecb3200fb5119dd018f7456cf80575d1e4992219343f7d7084c905f73c2ae27efd5f5670b02

  • memory/2756-10-0x000007FEF5060000-0x000007FEF59FD000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-11-0x000007FEF5060000-0x000007FEF59FD000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-16-0x000007FEF5060000-0x000007FEF59FD000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-0-0x000007FEF531E000-0x000007FEF531F000-memory.dmp

    Filesize

    4KB

  • memory/3056-1-0x0000000000350000-0x000000000035E000-memory.dmp

    Filesize

    56KB

  • memory/3056-2-0x000007FEF5060000-0x000007FEF59FD000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-3-0x000007FEF5060000-0x000007FEF59FD000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-9-0x000007FEF5060000-0x000007FEF59FD000-memory.dmp

    Filesize

    9.6MB