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Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-20220223-en
  • submitted
    30/03/2022, 06:03

General

  • Target

    7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d.xls

  • Size

    106KB

  • MD5

    90511ce75929d342264cf901297e8a60

  • SHA1

    602852d435f55e932f147f765384510d4be9dec0

  • SHA256

    7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d

  • SHA512

    81011f61d80c5301bedcf5ab92da8730bcbe44cc7878ac18912c848a27553b2a9f5a2ea7567e7cd4b4bcda4b0c901d07a5ef8f84d1080da1e1aff70543a4d971

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 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\7597defb4baf2b0e2bac5b71f4f2cce4b215b9269a11b07be5dd44e5a750956d.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3760
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\hdrh.dll
      2⤵
      • Process spawned unexpected child process
      PID:1552

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/3760-114-0x00007FFAD8EF0000-0x00007FFAD8F00000-memory.dmp

    Filesize

    64KB

  • memory/3760-115-0x00007FFAD8EF0000-0x00007FFAD8F00000-memory.dmp

    Filesize

    64KB

  • memory/3760-116-0x00007FFAD8EF0000-0x00007FFAD8F00000-memory.dmp

    Filesize

    64KB

  • memory/3760-117-0x00007FFAD8EF0000-0x00007FFAD8F00000-memory.dmp

    Filesize

    64KB