Analysis

  • max time kernel
    140s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    19/01/2022, 11:34

General

  • Target

    2a44ed0a9fda586147fb82a9927090f745e68887712a29d34e4bb1c52a83fba3.xll

  • Size

    1.7MB

  • MD5

    3bd7357d0ba62270d8c3bcff6e335820

  • SHA1

    1619e10be5789fab0f69e26353ee0e9669b4c7ad

  • SHA256

    2a44ed0a9fda586147fb82a9927090f745e68887712a29d34e4bb1c52a83fba3

  • SHA512

    cf35c7a66feb38a01ab082d44d2153ad6f97349d210a07966f9b5154e94f121bbf2cf31dd7e499e54188f2a0857a1c92837e2de69b640e3e1adf0b04ee89e746

Malware Config

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Bazar/Team9 Loader payload 1 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2a44ed0a9fda586147fb82a9927090f745e68887712a29d34e4bb1c52a83fba3.xll"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3776
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 C:\Users\Admin\JavaObjectReflectR.dll , dopt
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:2948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2948-259-0x0000000180000000-0x000000018003C000-memory.dmp

    Filesize

    240KB

  • memory/3776-121-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-129-0x00007FFD43CA0000-0x00007FFD43CB0000-memory.dmp

    Filesize

    64KB

  • memory/3776-128-0x00007FFD43CA0000-0x00007FFD43CB0000-memory.dmp

    Filesize

    64KB

  • memory/3776-115-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-118-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-117-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-116-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-277-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-278-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-279-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB

  • memory/3776-280-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

    Filesize

    64KB