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Analysis

  • max time kernel
    54s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    16/09/2022, 11:31

General

  • Target

    439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe

  • Size

    1.5MB

  • MD5

    e37902612fd150913972f68682866bb9

  • SHA1

    fa4321d279ea44b64bba9e8b5da0cd769c4d5280

  • SHA256

    439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df

  • SHA512

    4f1dad197611c57b7fdf6a0cf8c82418afc099d6862a7e04e5d16e35e6fb7b6a1296c32e6c65a348f448a5fb7047d9a59723c9eb859a9f2f5bc7e64081f8369b

  • SSDEEP

    24576:mF212SNdGm2VteVvE7lyuasxakyuBSHAEEt9X0MMxtJXXhvZ3o:Qk93HV84uasxByuuAEEzkDJXo

Score
8/10
upx

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 1 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe
    "C:\Users\Admin\AppData\Local\Temp\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe
      "C:\Users\Admin\AppData\Local\Temp\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe" --crash-reporter-parent-id=1100
      2⤵
      • Loads dropped DLL
      PID:1012
    • C:\Users\Admin\AppData\Local\Temp\Opera Installer\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe
      "C:\Users\Admin\AppData\Local\Temp\Opera Installer\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1272

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Opera Installer\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe

    Filesize

    1.5MB

    MD5

    e37902612fd150913972f68682866bb9

    SHA1

    fa4321d279ea44b64bba9e8b5da0cd769c4d5280

    SHA256

    439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df

    SHA512

    4f1dad197611c57b7fdf6a0cf8c82418afc099d6862a7e04e5d16e35e6fb7b6a1296c32e6c65a348f448a5fb7047d9a59723c9eb859a9f2f5bc7e64081f8369b

  • \Users\Admin\AppData\Local\Temp\Opera Installer\439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df.exe

    Filesize

    1.5MB

    MD5

    e37902612fd150913972f68682866bb9

    SHA1

    fa4321d279ea44b64bba9e8b5da0cd769c4d5280

    SHA256

    439a5c48c509a85939087ba2c5caf12fc7c333f12c47345340129bed3a17c3df

    SHA512

    4f1dad197611c57b7fdf6a0cf8c82418afc099d6862a7e04e5d16e35e6fb7b6a1296c32e6c65a348f448a5fb7047d9a59723c9eb859a9f2f5bc7e64081f8369b

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2209161331155101100.dll

    Filesize

    2.1MB

    MD5

    ffd04b791cb5f86c04890424cfd2ac60

    SHA1

    a75bda8612529d7942ba9151153044929adf1dd1

    SHA256

    fa4dc0c696aeb4bdefde30f357ee653b768116a4d02d88ba9833650f867389f0

    SHA512

    27a1d061588c17bb2ec0dd826f71a0ad22ffc989f76706b3432b2108fa093d7545937b41a85f6ef7376f3f05e2ab3a8f3d7073116340d1c1b6621d306d412728

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2209161331158321012.dll

    Filesize

    2.1MB

    MD5

    ffd04b791cb5f86c04890424cfd2ac60

    SHA1

    a75bda8612529d7942ba9151153044929adf1dd1

    SHA256

    fa4dc0c696aeb4bdefde30f357ee653b768116a4d02d88ba9833650f867389f0

    SHA512

    27a1d061588c17bb2ec0dd826f71a0ad22ffc989f76706b3432b2108fa093d7545937b41a85f6ef7376f3f05e2ab3a8f3d7073116340d1c1b6621d306d412728

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2209161331161071272.dll

    Filesize

    2.1MB

    MD5

    ffd04b791cb5f86c04890424cfd2ac60

    SHA1

    a75bda8612529d7942ba9151153044929adf1dd1

    SHA256

    fa4dc0c696aeb4bdefde30f357ee653b768116a4d02d88ba9833650f867389f0

    SHA512

    27a1d061588c17bb2ec0dd826f71a0ad22ffc989f76706b3432b2108fa093d7545937b41a85f6ef7376f3f05e2ab3a8f3d7073116340d1c1b6621d306d412728

  • memory/1012-67-0x0000000000DB0000-0x0000000001053000-memory.dmp

    Filesize

    2.6MB

  • memory/1100-65-0x0000000000DB0000-0x0000000001053000-memory.dmp

    Filesize

    2.6MB

  • memory/1100-66-0x0000000002460000-0x0000000002703000-memory.dmp

    Filesize

    2.6MB

  • memory/1100-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

    Filesize

    8KB

  • memory/1100-68-0x0000000003570000-0x0000000003813000-memory.dmp

    Filesize

    2.6MB

  • memory/1272-64-0x0000000001250000-0x00000000014F3000-memory.dmp

    Filesize

    2.6MB