Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-20220223-en
  • submitted
    29-03-2022 21:57

General

  • Target

    b26329204d4a737b51b710c6fb4ca573291be87a1fb5606f0e0b75987c09908f.xls

  • Size

    106KB

  • MD5

    f560b93aa052b4eff9a8dab2b150fda2

  • SHA1

    386c9937d0819886e7bfed8af1c814bdc943fd7b

  • SHA256

    b26329204d4a737b51b710c6fb4ca573291be87a1fb5606f0e0b75987c09908f

  • SHA512

    f57488fba7dd54601a4930e4bf4a9158659d36d12d5dde2728b6e4c60a1cf422b9e03cb0b897dd5967cd8101c4ca0edffcdfc85946c9beefc8fdc2dc889d280b

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://dougveeder.com/cgi-bin/xJ91ZttGRioQ7IUL/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • 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 FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 3 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\b26329204d4a737b51b710c6fb4ca573291be87a1fb5606f0e0b75987c09908f.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3948
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\hdrh.dll
      2⤵
      • Process spawned unexpected child process
      PID:1892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\hdrh.dll

    Filesize

    75KB

    MD5

    6a107ab34afce193dbab2e31c1fb240f

    SHA1

    54611ca004d1d6718042e00dcc7091000ab51c55

    SHA256

    37a7c728562612eb174db2141710f432e4ccf28cb7e7a5fbbfc1723ea8ac7229

    SHA512

    22c305773ea5ed4e0a2ffade2cfa6886c9f0074df753d63f4e55dbead1d26e86744be4f7b8c4839ecc9b201009be5019d7b252241c7971db38efdc9e77cc6161

  • memory/3948-114-0x00007FFCB0D60000-0x00007FFCB0D70000-memory.dmp

    Filesize

    64KB

  • memory/3948-115-0x00007FFCB0D60000-0x00007FFCB0D70000-memory.dmp

    Filesize

    64KB

  • memory/3948-116-0x00007FFCB0D60000-0x00007FFCB0D70000-memory.dmp

    Filesize

    64KB

  • memory/3948-117-0x00007FFCB0D60000-0x00007FFCB0D70000-memory.dmp

    Filesize

    64KB