Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-11-2024 01:30

General

  • Target

    da5245e6b1101afa56e4fbb87ca74065f0f991a85201d2074e253d29988a873b.exe

  • Size

    409KB

  • MD5

    c0970389d32b8d142f42c2dab1a70e4b

  • SHA1

    2f68ffb7b7e68f93b4a8d27e7bb32d6a708287c4

  • SHA256

    da5245e6b1101afa56e4fbb87ca74065f0f991a85201d2074e253d29988a873b

  • SHA512

    754afdfd5ff0dd40442d08989721f85a027214f560b5efb41e7f9adbcc8e32fa676e994d06966f5f2e908b940bbb3f8e50afb9faf7ee58ab4ad4c6028a60fe39

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4m:gtRfJcNYFNm8UhlZGsem

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da5245e6b1101afa56e4fbb87ca74065f0f991a85201d2074e253d29988a873b.exe
    "C:\Users\Admin\AppData\Local\Temp\da5245e6b1101afa56e4fbb87ca74065f0f991a85201d2074e253d29988a873b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\bqinuckn.exe "C:\Users\Admin\AppData\Local\Temp\da5245e6b1101afa56e4fbb87ca74065f0f991a85201d2074e253d29988a873b.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4908
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2596
      • C:\Users\Admin\AppData\Local\Temp\bqinuckn.exe
        C:\Users\Admin\AppData\Local\Temp\\bqinuckn.exe "C:\Users\Admin\AppData\Local\Temp\da5245e6b1101afa56e4fbb87ca74065f0f991a85201d2074e253d29988a873b.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2828
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\urrbg\tblodfvcj.dll",Verify C:\Users\Admin\AppData\Local\Temp\bqinuckn.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\bqinuckn.exe

    Filesize

    410KB

    MD5

    b0d50f7cbe28e903ca19ffed003b13e0

    SHA1

    3f389ce5b806c75787f5b68cee044948b8faf44f

    SHA256

    dbb7513572442e0a47ecbcf671c4eeac83bc6e871d4c64c9242c2922e582b053

    SHA512

    4acf203bed6eeb88b554bdd89bdd05ff19e6a902260ff0576c832c052a6329dced51645d7ef94ec0490fcc8a5f240962e6cb91142c48ae2b78caa9095eeea20e

  • \??\c:\Program Files\urrbg\tblodfvcj.dll

    Filesize

    228KB

    MD5

    5474f63f5d61a61137812c12f081bd0c

    SHA1

    c9469ec64b7e71bb238454abadc7d81a722ac989

    SHA256

    eeb24639b5d558f23518c465ec88073d442c97f7ac4f83b9931e692fa5f02fe2

    SHA512

    8ea2e1c9ee482142ff258a091daaa516276490d9e7f4748903372f5977914b92c4e977d23f48618fc3f499cd38ba0ecae609959fb18acfb794872465ac2f4242

  • memory/860-10-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/860-12-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/860-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/1876-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1876-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2828-7-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB