Analysis

  • max time kernel
    144s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    27-09-2021 11:59

General

  • Target

    waff.xls

  • Size

    233KB

  • MD5

    15950554dbc4a843ef439b46d31fe341

  • SHA1

    e91c0e7f7cfe1034fe1a3d861334fdb34f2bb691

  • SHA256

    2915591ef479332f179e26a3f6e4a63c35049569f5ca42d067f64dbdae681df9

  • SHA512

    ac330f408ef28b27e7a8d17caa1cd9c21ecde824cf03bd75e767b8b206ced98b5522bea53042947336f15150d05b8408bc587c3b1929a71c610a05b64834512b

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://maxdigitizing.com/wAbCNMUm/pp.html

xlm40.dropper

https://turnipshop.com/ihiRzoi1/pp.html

xlm40.dropper

https://dynamiclifts.co.in/1PWQQcv0D/pp.html

Signatures

  • Process spawned unexpected child process 3 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 4 IoCs
  • Suspicious use of WriteProcessMemory 21 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\waff.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:1144
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
      2⤵
      • Process spawned unexpected child process
      PID:876
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
      2⤵
      • Process spawned unexpected child process
      PID:628
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
      2⤵
      • Process spawned unexpected child process
      PID:1364

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/628-58-0x0000000000000000-mapping.dmp
  • memory/628-65-0x00000000001E0000-0x00000000001E1000-memory.dmp
    Filesize

    4KB

  • memory/876-57-0x0000000000000000-mapping.dmp
  • memory/876-59-0x0000000076581000-0x0000000076583000-memory.dmp
    Filesize

    8KB

  • memory/876-64-0x0000000000280000-0x0000000000281000-memory.dmp
    Filesize

    4KB

  • memory/1144-54-0x000000002F9E1000-0x000000002F9E4000-memory.dmp
    Filesize

    12KB

  • memory/1144-55-0x0000000071481000-0x0000000071483000-memory.dmp
    Filesize

    8KB

  • memory/1144-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1364-61-0x0000000000000000-mapping.dmp
  • memory/1364-63-0x00000000001A0000-0x00000000001A1000-memory.dmp
    Filesize

    4KB