Analysis

  • max time kernel
    96s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2024 15:29

General

  • Target

    TERMENII CONTRACTULUI-pdf.bat.exe

  • Size

    925KB

  • MD5

    45ade5a7d2ba48cc791547736965f440

  • SHA1

    37fb98d6b79231cdaf6b4b6f88f38e575a67742f

  • SHA256

    acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac

  • SHA512

    d89fec7cd5d4c0868daa57eaae1fb92b899ec2cf26ddefe0267da8f347b99aece88b8d7901af8dff6d815c3e69cff657573663cf8a07693fb64c1f3f6ad116e7

  • SSDEEP

    24576:wD2EKyq5H7X3y6MBGYrNizPkY6/mMScs2:wD2EKyGH7ny6MBBizPo/mMScs2

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TERMENII CONTRACTULUI-pdf.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\TERMENII CONTRACTULUI-pdf.bat.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4076
    • C:\Users\Admin\AppData\Local\Temp\TERMENII CONTRACTULUI-pdf.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\TERMENII CONTRACTULUI-pdf.bat.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsj9D0C.tmp\LangDLL.dll

    Filesize

    5KB

    MD5

    61f69388ae89d61a3d838cbcf81b4f82

    SHA1

    e595c0236a373a6ac79c334dc183ee03ca8f8ecd

    SHA256

    d65875bb4bc121f81384d55fde90dd9eb9ad1878cd8a02bcb5c8a933c3987a61

    SHA512

    21d34738cc21c1ef6b0ef1ac53659cdab224bbc20ea983f9a952a2cb4b5785a07bb18c0acf22a0d12a94795e1fc6d314f442c923bb1a93b675edac8c6aacf469

  • C:\Users\Admin\AppData\Local\Temp\nsj9D0C.tmp\System.dll

    Filesize

    11KB

    MD5

    4ca4fd3fbefa2f6e87e6e9ee87d1c0b3

    SHA1

    7cdbeb5ff2b14b86af04e075d0ca651183ea5df4

    SHA256

    d09a8b3ade4ba4b7292c0b3da1bcb4b6c6e2012e0ccfd5e029a54af73a9e1b57

    SHA512

    cf0f415a97fdc74568297fed4f1295d0d2aef487a308141144ef8d5f04c669ef4795c273e745b81065429adde113fcdedf4c22717a7aeef60fdcd8d4d46f97f8

  • memory/932-37-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/932-43-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/932-40-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/932-39-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/932-38-0x0000000001660000-0x0000000003E35000-memory.dmp

    Filesize

    39.8MB

  • memory/932-33-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/932-35-0x0000000001660000-0x0000000003E35000-memory.dmp

    Filesize

    39.8MB

  • memory/932-36-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/4076-30-0x0000000004A40000-0x0000000007215000-memory.dmp

    Filesize

    39.8MB

  • memory/4076-34-0x0000000004A40000-0x0000000007215000-memory.dmp

    Filesize

    39.8MB

  • memory/4076-32-0x0000000073F14000-0x0000000073F15000-memory.dmp

    Filesize

    4KB

  • memory/4076-31-0x00000000770B1000-0x00000000771D1000-memory.dmp

    Filesize

    1.1MB

  • memory/4076-29-0x0000000004A40000-0x0000000007215000-memory.dmp

    Filesize

    39.8MB