Resubmissions

29/11/2024, 17:23

241129-vyj5lsxpb110

17/03/2023, 23:30

230317-3g5c8aad766

Analysis

  • max time kernel
    142s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17/03/2023, 23:30

General

  • Target
    Documents-invoice-plan_032023.exe
  • Size 1.5MB
  • Sample230317-3g5c8aad76
  • SHA256 7572b5b6b1f0ea8e857de568898cf97139c4e5237b835c61fea7d91a6f1155fb
  • MD5 SHA1 SHA512 SSDEEP
Score
6/10

Malware Config

Signatures

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Documents-invoice-plan_032023.exe
    "C:\Users\Admin\AppData\Local\Temp\Documents-invoice-plan_032023.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\Documents-invoice-plan_032023.exe
      "C:\Users\Admin\AppData\Local\Temp\Documents-invoice-plan_032023.exe"
      2⤵
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c tzutil /g
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1512
        • C:\Windows\SysWOW64\tzutil.exe
          tzutil /g
          4⤵
            PID:1604

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
          • Size 61KB
          • SHA256 95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72
          • MD5 SHA1 SHA512 SSDEEP

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 342B
          • SHA256 6f4aad63b6f06357bd05a6c18b04d1175fd05393e6b26e503cc40283aec306f8
          • MD5 SHA1 SHA512

          Cab7755.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\Cab7755.tmp
          • Size 61KB
          • SHA256 10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b
          • MD5 SHA1 SHA512 SSDEEP

          Tar7884.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\Tar7884.tmp
          • Size 161KB
          • SHA256 1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd
          • MD5 SHA1 SHA512 SSDEEP

          memory/1972-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          memory/1972-56-0x0000000000400000-0x0000000000545000-memory.dmp

          memory/1972-59-0x0000000000400000-0x0000000000545000-memory.dmp

          memory/1972-60-0x0000000000400000-0x0000000000545000-memory.dmp

          memory/1972-146-0x0000000000400000-0x0000000000545000-memory.dmp

          memory/2016-58-0x00000000045B0000-0x00000000046ED000-memory.dmp