Analysis

  • max time kernel
    70s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    01-04-2023 19:55

General

  • Target

    805172bc285c8abf34e38e9431a9410d3bbc12041ad7f66081027bfaa79f424e.xlsm

  • Size

    20KB

  • MD5

    6f700a6eda0cc8dfc73a536713fc367a

  • SHA1

    3b74c1cfb772067dcadb462062009440bc287bc8

  • SHA256

    805172bc285c8abf34e38e9431a9410d3bbc12041ad7f66081027bfaa79f424e

  • SHA512

    9aa807575c2a2ea81bc48eeb2ac7051043c62c1c7eb67d35eab57cdeb248558c8d365e22eec78fb141afe1d72cf92a10351255354621d2da45f5a7c76f38badb

  • SSDEEP

    384:u5PW4cGz9IpUCIyr8A1qInSBJkWzjZeJk+IOUlM9z4c:u5PRipUCxD1qzk+5Ox0c

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://yourdesicart.com/errors.php

xlm40.dropper

http://melis.com.ar/errors.php

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Deletes itself 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\805172bc285c8abf34e38e9431a9410d3bbc12041ad7f66081027bfaa79f424e.xlsm
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\qHvqH.txt,mvBqlyq
      2⤵
      • Process spawned unexpected child process
      PID:1084

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

  • C:\Users\Admin\AppData\Local\Temp\Tar5EDB.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • memory/1200-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB