Analysis

  • max time kernel
    151s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-04-2021 13:14

General

  • Target

    catalog-138717734.xlsm

  • Size

    120KB

  • MD5

    23723cbba5a0c4a19cd6bbf91f884f7c

  • SHA1

    8ac83c33d6696122abfdaca85b16cbc2a44b06e3

  • SHA256

    8393a4adfc52b82181fc5008601df84de01dd48cbb539d06a006eb93d271eb3d

  • SHA512

    7821fdb964dad65b10920d987f03b6c7bfb7e1415c617c5d5586ef852ac24c0966f84276c5d95194adbd926bcead6843c9df6cce55ea90f871f73237ec5301f9

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://boehm-kavon15lc.ru.com/body.html

xlm40.dropper

http://rosenbaum-milan15y.ru.com/body.html

xlm40.dropper

https://glsiba.org/drms/body.html

xlm40.dropper

https://jahthroneafricancrafts.com/drms/body.html

Signatures

  • Process spawned unexpected child process 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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\catalog-138717734.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\ghnrope.rue1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1512
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\ghnrope.rue2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1924
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\ghnrope.rue3,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:832
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\ghnrope.rue4,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1012

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/832-67-0x0000000000000000-mapping.dmp

  • memory/1012-69-0x0000000000000000-mapping.dmp

  • memory/1512-63-0x0000000000000000-mapping.dmp

  • memory/1512-64-0x00000000757C1000-0x00000000757C3000-memory.dmp

    Filesize

    8KB

  • memory/1848-60-0x000000002FA51000-0x000000002FA54000-memory.dmp

    Filesize

    12KB

  • memory/1848-61-0x00000000717B1000-0x00000000717B3000-memory.dmp

    Filesize

    8KB

  • memory/1848-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1924-65-0x0000000000000000-mapping.dmp