Analysis

  • max time kernel
    109s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 06:34

General

  • Target

    d1b96cd803dc7ac7daeb7554dadf69542979c3d7a65cfa07fb5fec8dafb5623e.xls

  • Size

    86KB

  • MD5

    352b509a254d2e67c14117a3d8eecd3c

  • SHA1

    ca607e6504eefbe03e85d5fb727f328568b8ac77

  • SHA256

    d1b96cd803dc7ac7daeb7554dadf69542979c3d7a65cfa07fb5fec8dafb5623e

  • SHA512

    a9c9cb8f2746fcd144090f5fa15f752030983203ada3619f20e5ff8b21d6388a4e3df6c1c7261052de1149305546cccaf2d0c2af17a1f6e9a27dadc22e013679

  • SSDEEP

    1536:8fcKoSsxz1PDZLDZjlbR868O8Kfc03V7uDphYHceXVhca+fMHLtyeGx2zZ8dIOii:8fcKoSsxzNDZLDZjlbR868O8Kfc03V74

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://qab26utxb02pquc.com/fera/frid.gif

Signatures

  • Process spawned unexpected child process 1 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 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\d1b96cd803dc7ac7daeb7554dadf69542979c3d7a65cfa07fb5fec8dafb5623e.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\nxckew.wle,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1068

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/1068-60-0x0000000000000000-mapping.dmp
  • memory/1476-54-0x000000002FE71000-0x000000002FE74000-memory.dmp
    Filesize

    12KB

  • memory/1476-55-0x0000000071B01000-0x0000000071B03000-memory.dmp
    Filesize

    8KB

  • memory/1476-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1476-57-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1476-58-0x0000000075E51000-0x0000000075E53000-memory.dmp
    Filesize

    8KB

  • memory/1476-59-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB