Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    05-03-2021 08:15

General

  • Target

    Overdue-Debt-2011551101-03042021.xls

  • Size

    76KB

  • MD5

    7a47928a225ce7f7ed46588ce33461d8

  • SHA1

    2ac088f42877472f9577f1d4b5ec7d103dcbb9db

  • SHA256

    7c5747c236ee6957a2cc3c33dba9d2888d8c1276430d3fc06f5c4b8552d55b3d

  • SHA512

    cf88be8d972a344da19b50a77c76102855f8f5167c00b63b798a4b0878d1d3c62dce5ab421a6d91e3b2b5f25c5a2c5605c0a1e3fdf21fd62b499e9468bbfbb60

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://giftcard16.com/ozdomsmm/44260.3414311343.jpg

xlm40.dropper

http://www.ausfencing.org/pafmwptlztwo/44260.3414311343.jpg

xlm40.dropper

http://mubasharhussain.ml/lwjiel/44260.3414311343.jpg

xlm40.dropper

http://artisthub.farahasmar.com/bzdydzj/44260.3414311343.jpg

xlm40.dropper

http://rrmmarketing.com/qqduill/44260.3414311343.jpg

Signatures

  • Process spawned unexpected child process 5 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 35 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\Overdue-Debt-2011551101-03042021.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Vijaser.lasjr,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:672
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Vijaser.lasjr1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1764
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Vijaser.lasjr2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1812
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Vijaser.lasjr3,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Vijaser.lasjr4,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:976

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

  • memory/672-6-0x0000000000000000-mapping.dmp
  • memory/672-7-0x00000000760C1000-0x00000000760C3000-memory.dmp
    Filesize

    8KB

  • memory/976-14-0x0000000000000000-mapping.dmp
  • memory/1016-12-0x0000000000000000-mapping.dmp
  • memory/1152-2-0x000000002FCE1000-0x000000002FCE4000-memory.dmp
    Filesize

    12KB

  • memory/1152-3-0x0000000071191000-0x0000000071193000-memory.dmp
    Filesize

    8KB

  • memory/1152-4-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1632-5-0x000007FEF72E0000-0x000007FEF755A000-memory.dmp
    Filesize

    2.5MB

  • memory/1764-8-0x0000000000000000-mapping.dmp
  • memory/1812-10-0x0000000000000000-mapping.dmp