Analysis

  • max time kernel
    101s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-06-2022 10:00

General

  • Target

    032a39900761efd9adff97b6aef768d65152328c9e6fb7b6794b8aa047049201.xls

  • Size

    282KB

  • MD5

    7d753d90d322ad0765eccf1a5d3e1474

  • SHA1

    3853242b62e76f74c3187132411b2af4964aaa87

  • SHA256

    032a39900761efd9adff97b6aef768d65152328c9e6fb7b6794b8aa047049201

  • SHA512

    b4c0df830de06c3f7d47212adccf7188fa77f87fda84ea0d786d9e2299922af96fc3f8ebe353a67b6c515e361f4ba026e8a191eb00e0c6508673063d8dbca9b7

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\032a39900761efd9adff97b6aef768d65152328c9e6fb7b6794b8aa047049201.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:1144

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/1144-54-0x000000002FDB1000-0x000000002FDB4000-memory.dmp

    Filesize

    12KB

  • memory/1144-55-0x0000000071D11000-0x0000000071D13000-memory.dmp

    Filesize

    8KB

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

    Filesize

    64KB

  • memory/1144-57-0x0000000072CFD000-0x0000000072D08000-memory.dmp

    Filesize

    44KB

  • memory/1144-58-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

    Filesize

    8KB

  • memory/1144-59-0x0000000072CFD000-0x0000000072D08000-memory.dmp

    Filesize

    44KB

  • memory/1144-60-0x00000000005C6000-0x00000000005CA000-memory.dmp

    Filesize

    16KB

  • memory/1144-61-0x00000000005C6000-0x00000000005CA000-memory.dmp

    Filesize

    16KB

  • memory/1144-63-0x0000000007430000-0x0000000007446000-memory.dmp

    Filesize

    88KB

  • memory/1144-64-0x0000000072CFD000-0x0000000072D08000-memory.dmp

    Filesize

    44KB