Analysis

  • max time kernel
    88s
  • max time network
    167s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    31-07-2022 08:58

General

  • Target

    db92aa79b35ef1aeceb4982d900ffbc1ee756b5e403095e0f7b9cba93f258391.xls

  • Size

    282KB

  • MD5

    21f24bec513e1787ddfc009cc1a05bd6

  • SHA1

    780a483194d2224130e9a5f4c132c4443e2b32d5

  • SHA256

    db92aa79b35ef1aeceb4982d900ffbc1ee756b5e403095e0f7b9cba93f258391

  • SHA512

    23ab58256954c8a36f17e65d0b6703c82406e597b0dc5ddbd0080300efa86ba651af5279cc90aaeebce44c3378d237a705e70979add82d7a65505732fe5dbb32

Score
10/10

Malware Config

Signatures

  • TA505

    Cybercrime group active since 2015, responsible for families like Dridex and Locky.

  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\db92aa79b35ef1aeceb4982d900ffbc1ee756b5e403095e0f7b9cba93f258391.xls
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:1292

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\masterbox1.dll

    Filesize

    76KB

    MD5

    0e58f9f92aef2d6f4df498de3b23956f

    SHA1

    9e69323f6e7fba426eb3dbe8659ff2ff6e9e15a0

    SHA256

    1583a29fc11cebc372e851651663a7b1fcb129de4223ca907f5f260559fafbeb

    SHA512

    c5e0d695040549a2ded8155c67a9532539608eec600de54501564b41d19002da5ac48a1034f56ccc8c9994b40a18760218ec3462d025a1da03063570d9b62a00

  • memory/1292-61-0x00000000006BF000-0x00000000006C3000-memory.dmp

    Filesize

    16KB

  • memory/1292-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1292-57-0x0000000071E4D000-0x0000000071E58000-memory.dmp

    Filesize

    44KB

  • memory/1292-58-0x0000000074F01000-0x0000000074F03000-memory.dmp

    Filesize

    8KB

  • memory/1292-59-0x0000000071E4D000-0x0000000071E58000-memory.dmp

    Filesize

    44KB

  • memory/1292-54-0x000000002F641000-0x000000002F644000-memory.dmp

    Filesize

    12KB

  • memory/1292-60-0x00000000006BF000-0x00000000006C3000-memory.dmp

    Filesize

    16KB

  • memory/1292-62-0x00000000006BF000-0x00000000006C3000-memory.dmp

    Filesize

    16KB

  • memory/1292-63-0x00000000006BF000-0x00000000006C3000-memory.dmp

    Filesize

    16KB

  • memory/1292-55-0x0000000070E61000-0x0000000070E63000-memory.dmp

    Filesize

    8KB

  • memory/1292-65-0x0000000007510000-0x0000000007526000-memory.dmp

    Filesize

    88KB

  • memory/1292-66-0x0000000071E4D000-0x0000000071E58000-memory.dmp

    Filesize

    44KB