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Analysis

  • max time kernel
    132s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    14/02/2023, 09:15

General

  • Target

    533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe

  • Size

    1.2MB

  • MD5

    e3366275f904494b726e0943898edabc

  • SHA1

    c34489b5fe7cb2571fe8c79d1bbfb3ab11502e08

  • SHA256

    533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6

  • SHA512

    9c66eae2f04e737691a154aa1996c3fc0e8794092bf33fc371e51c3ed16807bddea508a2f7aa45fc3a8c8b986e268e90f77793ca0b0f431c3b68aa34ddbf3550

  • SSDEEP

    24576:NBQxcQn6hID28oRFWAxEc+/yhuN2gnxlBo2qPF52ZHz3m8u7j5ZjP14E0ZZj2tHc:NB+cg6h3RtElzZnxlBo2qPF52Jzebz1g

Score
8/10
upx

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 5 IoCs

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

  • 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 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe
    "C:\Users\Admin\AppData\Local\Temp\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe
      "C:\Users\Admin\AppData\Local\Temp\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe" --crash-reporter-parent-id=2028
      2⤵
      • Loads dropped DLL
      PID:1984
    • C:\Users\Admin\AppData\Local\Temp\Opera Installer\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe
      "C:\Users\Admin\AppData\Local\Temp\Opera Installer\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:876

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Opera Installer\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe

    Filesize

    1.2MB

    MD5

    e3366275f904494b726e0943898edabc

    SHA1

    c34489b5fe7cb2571fe8c79d1bbfb3ab11502e08

    SHA256

    533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6

    SHA512

    9c66eae2f04e737691a154aa1996c3fc0e8794092bf33fc371e51c3ed16807bddea508a2f7aa45fc3a8c8b986e268e90f77793ca0b0f431c3b68aa34ddbf3550

  • \Users\Admin\AppData\Local\Temp\Opera Installer\533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6.exe

    Filesize

    1.2MB

    MD5

    e3366275f904494b726e0943898edabc

    SHA1

    c34489b5fe7cb2571fe8c79d1bbfb3ab11502e08

    SHA256

    533f039d0cba948f51fec1f02fc11a9c3a2f60603eef933a7fa447ee2d4313a6

    SHA512

    9c66eae2f04e737691a154aa1996c3fc0e8794092bf33fc371e51c3ed16807bddea508a2f7aa45fc3a8c8b986e268e90f77793ca0b0f431c3b68aa34ddbf3550

  • \Users\Admin\AppData\Local\Temp\Opera_installer_20232141535487.dll

    Filesize

    1.6MB

    MD5

    4d127a7dd991fbaa855dddcc494a8625

    SHA1

    fb8bcdde44113073a186595cd03ddff72ab8c3d2

    SHA256

    c1114384729a626c3731c7e13f05c5e13802323b13f41f0ae890c17b6a4e58d2

    SHA512

    cc6c80cbf6f6218c20ea5380494349305a1f344520c498b4ab366095b72fc531d20881504aab9590875cc17ef01bb52063d1b0a8d9005523146aabeb1869b3e9

  • \Users\Admin\AppData\Local\Temp\Opera_installer_20232141535778.dll

    Filesize

    1.6MB

    MD5

    4d127a7dd991fbaa855dddcc494a8625

    SHA1

    fb8bcdde44113073a186595cd03ddff72ab8c3d2

    SHA256

    c1114384729a626c3731c7e13f05c5e13802323b13f41f0ae890c17b6a4e58d2

    SHA512

    cc6c80cbf6f6218c20ea5380494349305a1f344520c498b4ab366095b72fc531d20881504aab9590875cc17ef01bb52063d1b0a8d9005523146aabeb1869b3e9

  • \Users\Admin\AppData\Local\Temp\Opera_installer_20232141536271.dll

    Filesize

    1.6MB

    MD5

    4d127a7dd991fbaa855dddcc494a8625

    SHA1

    fb8bcdde44113073a186595cd03ddff72ab8c3d2

    SHA256

    c1114384729a626c3731c7e13f05c5e13802323b13f41f0ae890c17b6a4e58d2

    SHA512

    cc6c80cbf6f6218c20ea5380494349305a1f344520c498b4ab366095b72fc531d20881504aab9590875cc17ef01bb52063d1b0a8d9005523146aabeb1869b3e9

  • memory/876-64-0x0000000000030000-0x0000000000259000-memory.dmp

    Filesize

    2.2MB

  • memory/1984-67-0x00000000008F0000-0x0000000000B19000-memory.dmp

    Filesize

    2.2MB

  • memory/2028-55-0x0000000075441000-0x0000000075443000-memory.dmp

    Filesize

    8KB

  • memory/2028-65-0x00000000008F0000-0x0000000000B19000-memory.dmp

    Filesize

    2.2MB

  • memory/2028-66-0x0000000002290000-0x00000000024B9000-memory.dmp

    Filesize

    2.2MB

  • memory/2028-68-0x0000000002290000-0x00000000024B9000-memory.dmp

    Filesize

    2.2MB

  • memory/2028-69-0x00000000029F0000-0x0000000002C19000-memory.dmp

    Filesize

    2.2MB