Analysis

  • max time kernel
    111s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2022 13:52

General

  • Target

    f121e8ed0136b54dba3c4cf2dc2a92d82c189d72ae1da1ef8de80014d9bb9676.xls

  • Size

    1.4MB

  • MD5

    4cdfb8886da3e667d9e0bd903ad3ebf7

  • SHA1

    ddaa200c183abc418bfea5eecc0b20bcd7d15d56

  • SHA256

    f121e8ed0136b54dba3c4cf2dc2a92d82c189d72ae1da1ef8de80014d9bb9676

  • SHA512

    b3c2d3de21ea23cfd3b6a1332f23fcd77c089388e301c7d5e7b2e115bbccc45ed92589161da3ca29c419f8dc4cd3eb91e9ebbe6b86714a4e5d072f75afb8942e

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 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\f121e8ed0136b54dba3c4cf2dc2a92d82c189d72ae1da1ef8de80014d9bb9676.xls
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe
      C:\Users\Admin\AppData\Roaming\WindowsSecurity.exe
      2⤵
      • Executes dropped EXE
      PID:1436

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\Roaming\WindowsSecurity.exe
    Filesize

    659KB

    MD5

    04f7ee1aa5e29d2f2d4ea6b539d20709

    SHA1

    f72d2f06ee7aeaa9180e9ba3132192332dcc1bf8

    SHA256

    e9d550d9a18dd0efee23eb189ba79917d39e5c33fc1dfac662248868c260f073

    SHA512

    d317a7a15165ebb5f04d2a77cb26359afda8a53e3a998c79fc31984581d3fde676b8c017fe80d59a1592ede7e000a48b9733c193bd0d35546ac35cb5346c81c8

  • \Users\Admin\AppData\Roaming\WindowsSecurity.exe
    Filesize

    659KB

    MD5

    04f7ee1aa5e29d2f2d4ea6b539d20709

    SHA1

    f72d2f06ee7aeaa9180e9ba3132192332dcc1bf8

    SHA256

    e9d550d9a18dd0efee23eb189ba79917d39e5c33fc1dfac662248868c260f073

    SHA512

    d317a7a15165ebb5f04d2a77cb26359afda8a53e3a998c79fc31984581d3fde676b8c017fe80d59a1592ede7e000a48b9733c193bd0d35546ac35cb5346c81c8

  • memory/1436-61-0x0000000000000000-mapping.dmp
  • memory/1752-54-0x000000002F711000-0x000000002F714000-memory.dmp
    Filesize

    12KB

  • memory/1752-55-0x0000000071BE1000-0x0000000071BE3000-memory.dmp
    Filesize

    8KB

  • memory/1752-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1752-57-0x0000000072BCD000-0x0000000072BD8000-memory.dmp
    Filesize

    44KB

  • memory/1752-58-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
    Filesize

    8KB

  • memory/1752-59-0x0000000000730000-0x0000000000734000-memory.dmp
    Filesize

    16KB

  • memory/1752-63-0x0000000072BCD000-0x0000000072BD8000-memory.dmp
    Filesize

    44KB

  • memory/1752-64-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1752-65-0x0000000072BCD000-0x0000000072BD8000-memory.dmp
    Filesize

    44KB