Analysis

  • max time kernel
    173s
  • max time network
    243s
  • platform
    windows10-1703_x64
  • resource
    win10-20240611-en
  • resource tags

    arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
  • submitted
    27-06-2024 23:25

General

  • Target

    dcab3200f7743e1ce88066d4fbbf9f00d59c35ab89880f75f54b791d3a511928.exe

  • Size

    2.0MB

  • MD5

    548bfd88fe3d6c84ce8a6f4357a072a2

  • SHA1

    bea04b795ea3b3829ec738957b35eba795df8cf7

  • SHA256

    dcab3200f7743e1ce88066d4fbbf9f00d59c35ab89880f75f54b791d3a511928

  • SHA512

    15b2b4b40e1013dec5d296acb0e7d9fb8dce676cec8ea04d887231585bb3adc8aef1bb5ad2ca7d1a7c8afa7d698220a25d58fb2926e91281757635f2976aa998

  • SSDEEP

    49152:oNEyY80FNFPy4tGmml/0947g+b9W7m6S/sbs0wQ22qPAoFmkn:WEhFvqXjbqoJQCd

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcab3200f7743e1ce88066d4fbbf9f00d59c35ab89880f75f54b791d3a511928.exe
    "C:\Users\Admin\AppData\Local\Temp\dcab3200f7743e1ce88066d4fbbf9f00d59c35ab89880f75f54b791d3a511928.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Users\Admin\AppData\Local\Temp\7zS46837928\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS46837928\setup.exe --server-tracking-blob=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
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Users\Admin\AppData\Local\Temp\7zS46837928\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS46837928\setup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=111.0.5168.25 --initial-client-data=0x308,0x30c,0x310,0x304,0x314,0x7314a128,0x7314a134,0x7314a140
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1404
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1948
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\Assistant_111.0.5168.25_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\Assistant_111.0.5168.25_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        PID:436
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2640
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=111.0.5168.25 --initial-client-data=0x230,0x234,0x238,0x20c,0x23c,0x1529f88,0x1529f94,0x1529fa0
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1472

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\additional_file0.tmp

    Filesize

    2.6MB

    MD5

    dfe86cd1ab9fe5055dba3ead830574f6

    SHA1

    800ba6757bf301a918a800ce15a3853e3941e019

    SHA256

    f9cdff6fea65207cde93c637cca4b92939359ede3ac7337c2048e076085e7e5f

    SHA512

    d3d363a221a3fa7a010194965cb8cc7210aa17d81be094a3e8ee89bb2de684c3b874ce1c6c55e8109091a849874d05c1bae132d450dabe2597167782d0063570

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\assistant_installer.exe

    Filesize

    1.9MB

    MD5

    a8c564c798ae8160230297d361952dd6

    SHA1

    34a45ee9eb7733ae9afbebb9f2951288a27f9df5

    SHA256

    3f48e5331890159921f7b65103c4b06bbf08552065718313761647d1648f8a64

    SHA512

    141ac3356a2fee32121231308cdd8afa5f76695185d66bba9fa977b66e5c6bad8bd4ea4656acdc743cd6b6f85c28a16626ab07f8b2c72652de82b4fb21c0bb54

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\dbghelp.dll

    Filesize

    1.7MB

    MD5

    eeb07dc97790e8b075d6938759fe6ee1

    SHA1

    afb099be8ee28fef6488b5d253ba910b081a3b1b

    SHA256

    2808772ce1653cdf659f4781c718a9dd6f3ac547d52a1080462487baccaeaf78

    SHA512

    e541d839562c5045b5af0cc7ad2129393383df3fc528193cdef1a31ded4e894ffb8a02d34a009b3d6543d4987616534caaefa130a2b55ea73baf37ee0a294980

  • C:\Users\Admin\AppData\Local\Temp\7zS46837928\setup.exe

    Filesize

    5.2MB

    MD5

    6a39877aba485cd09c090e4e24f53de6

    SHA1

    ada29b30d665203b7e6cda8f1b6114699ba472a7

    SHA256

    2daba944e443aea09f4d50a0ac5ea2a6bb85b6f861c83c1bbd284e6d81e8a7e3

    SHA512

    ecab25931ed2d985b396e62d5930dd5c7edc3c0835e3e3df3058197bb8800491a8ea13fc824935bcf187a848a29da176c7dd7dc8f43aaca108e17fed76dfb32c

  • C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports\settings.dat

    Filesize

    40B

    MD5

    b3d38e0b4731e28c01b261fbdedc47c2

    SHA1

    2ef7b63984c53486ef0479a903b057958b6810a0

    SHA256

    97c111ed893e80274a969f1d4c72963005b9691d0602c4a3b303f9e46be9165c

    SHA512

    ac0cbb584a0bbdd3fcff67e2440859cf2514916243b399f7036517224a449a9f9e4b53bec7e54195cf8a4fce4ecff0fe6b99ef8515bde567620eee337f18c16e

  • \Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406272325401\assistant\dbgcore.dll

    Filesize

    166KB

    MD5

    ff0364394f7bc74d0c68040a5fbcda6f

    SHA1

    d19ce25e7d0e3043c377c5770b0f20cb42bd0295

    SHA256

    3bd944ca30b77f9ce8a1f503a7ee0dbcb77b92ae9fcd68907abe0ef2e9275053

    SHA512

    0676de1a65cc9c209f544e921f45c5eb8c5d42fb391ae1f370b0a2bedd26740f75f32ea5f17497d86e03edd6cf281ca51a7a54380a82de152d0e25a28297ccfd

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2406272325386504896.dll

    Filesize

    4.7MB

    MD5

    b05a49fe0b700420401974a62cea7be6

    SHA1

    1dec7981c1d5eab1952c69c512dcc3877241c82e

    SHA256

    12f8a3f3569cecd209e1a6e229e7e6c3d130ab1694fdf71c10d5e3b5154ba703

    SHA512

    34fc1e8a9e046400107ea0e1be1aeb7d1d8a5e71380733bbce0ac5d15ee9b58762b63f7de4591762b6a7c32f5be83122bbf757d3a88a6f78e6d2c06ffd596833