Analysis

  • max time kernel
    115s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2023 15:21

General

  • Target

    bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1.exe

  • Size

    548KB

  • MD5

    19e21764ec17f691bb10fd9f52ff8279

  • SHA1

    19309de824ebaa6cb73e6baf8ede91f092bb87e6

  • SHA256

    bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1

  • SHA512

    4a13c8de0f0f05ce0962b1704357d8042eb204e5b1401c8549149807aca8c905435c44b01a29815a9df55e374a4a7b935037abfd89e14b3b14408519ddfb94da

  • SSDEEP

    6144:H7qW7+p/0TjfVo4Gd6MgZtpy9Jbv3JQDfJXnIZR:HuW7+pcTJZGdvUgbhQDiv

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1.exe
    "C:\Users\Admin\AppData\Local\Temp\bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\SHRpJJP.exe
      "C:\Windows\system32\SHRpJJP.exe" -auto
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\BC10D0~1.EXE > nul
      2⤵
        PID:1496
    • C:\Windows\SysWOW64\SHRpJJP.exe
      C:\Windows\SysWOW64\SHRpJJP.exe Service 1
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\SysWOW64\SHRpJJP.exe
        -ojbk
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1468

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\SHRpJJP.exe

      Filesize

      548KB

      MD5

      19e21764ec17f691bb10fd9f52ff8279

      SHA1

      19309de824ebaa6cb73e6baf8ede91f092bb87e6

      SHA256

      bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1

      SHA512

      4a13c8de0f0f05ce0962b1704357d8042eb204e5b1401c8549149807aca8c905435c44b01a29815a9df55e374a4a7b935037abfd89e14b3b14408519ddfb94da

    • C:\Windows\SysWOW64\SHRpJJP.exe

      Filesize

      548KB

      MD5

      19e21764ec17f691bb10fd9f52ff8279

      SHA1

      19309de824ebaa6cb73e6baf8ede91f092bb87e6

      SHA256

      bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1

      SHA512

      4a13c8de0f0f05ce0962b1704357d8042eb204e5b1401c8549149807aca8c905435c44b01a29815a9df55e374a4a7b935037abfd89e14b3b14408519ddfb94da

    • C:\Windows\SysWOW64\SHRpJJP.exe

      Filesize

      548KB

      MD5

      19e21764ec17f691bb10fd9f52ff8279

      SHA1

      19309de824ebaa6cb73e6baf8ede91f092bb87e6

      SHA256

      bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1

      SHA512

      4a13c8de0f0f05ce0962b1704357d8042eb204e5b1401c8549149807aca8c905435c44b01a29815a9df55e374a4a7b935037abfd89e14b3b14408519ddfb94da

    • C:\Windows\SysWOW64\SHRpJJP.exe

      Filesize

      548KB

      MD5

      19e21764ec17f691bb10fd9f52ff8279

      SHA1

      19309de824ebaa6cb73e6baf8ede91f092bb87e6

      SHA256

      bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1

      SHA512

      4a13c8de0f0f05ce0962b1704357d8042eb204e5b1401c8549149807aca8c905435c44b01a29815a9df55e374a4a7b935037abfd89e14b3b14408519ddfb94da

    • C:\Windows\SysWOW64\SHRpJJP.exe

      Filesize

      548KB

      MD5

      19e21764ec17f691bb10fd9f52ff8279

      SHA1

      19309de824ebaa6cb73e6baf8ede91f092bb87e6

      SHA256

      bc10d00fc534b932fd0b55738b7321afedae953b05e736f1313f3580d40c95e1

      SHA512

      4a13c8de0f0f05ce0962b1704357d8042eb204e5b1401c8549149807aca8c905435c44b01a29815a9df55e374a4a7b935037abfd89e14b3b14408519ddfb94da

    • memory/1468-147-0x0000000002020000-0x000000000202B000-memory.dmp

      Filesize

      44KB

    • memory/1468-146-0x0000000002020000-0x000000000202B000-memory.dmp

      Filesize

      44KB

    • memory/1468-148-0x0000000011020000-0x000000001102B000-memory.dmp

      Filesize

      44KB

    • memory/1468-149-0x0000000002170000-0x0000000002171000-memory.dmp

      Filesize

      4KB

    • memory/1468-172-0x0000000011020000-0x000000001102B000-memory.dmp

      Filesize

      44KB

    • memory/1468-171-0x0000000002010000-0x0000000002011000-memory.dmp

      Filesize

      4KB

    • memory/1468-173-0x0000000011000000-0x0000000011001000-memory.dmp

      Filesize

      4KB

    • memory/1468-175-0x0000000002180000-0x0000000002181000-memory.dmp

      Filesize

      4KB

    • memory/1468-174-0x0000000002190000-0x0000000002191000-memory.dmp

      Filesize

      4KB