Analysis

  • max time kernel
    62s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    28/10/2022, 02:15

General

  • Target

    f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe

  • Size

    2.1MB

  • MD5

    0714c6175587f4599ac58375115df70a

  • SHA1

    3fc4086f03d60e15b99a0b72624ecc8ccb84aaee

  • SHA256

    f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375

  • SHA512

    84763d69c8c911ec0e7043c9bc53881cb2b9e8a7bb08ec4af2df78670c957627753f959abf0a9c53ba5f0b2660a9634fd0629fc2f47139755da52da95f63c938

  • SSDEEP

    49152:a/rDYX+DKOQG914qExmAiF5FnhaU/WtN+sNLqH+z6s0NXO0HVXA:0DYXydQGdzSIWaKLqHQUXOWA

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Loads dropped DLL 4 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 1 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe
    "C:\Users\Admin\AppData\Local\Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Users\Admin\AppData\Local\Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe
      C:\Users\Admin\AppData\Local\Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe --type=crashpad-handler /prefetch:7 --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=58.0.3135.127 --initial-client-data=0x108,0x110,0x114,0x10c,0x118,0x74e3c900,0x74e3c910,0x74e3c91c
      2⤵
      • Loads dropped DLL
      PID:948
    • C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe
      "C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe

    Filesize

    2.1MB

    MD5

    0714c6175587f4599ac58375115df70a

    SHA1

    3fc4086f03d60e15b99a0b72624ecc8ccb84aaee

    SHA256

    f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375

    SHA512

    84763d69c8c911ec0e7043c9bc53881cb2b9e8a7bb08ec4af2df78670c957627753f959abf0a9c53ba5f0b2660a9634fd0629fc2f47139755da52da95f63c938

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

    Filesize

    40B

    MD5

    78b2db78e3f7121864d52b30d5b2bdf5

    SHA1

    6c5d98b73ebb70a0d6e4f74c1518d50f744c82c7

    SHA256

    ae49b12f595dba31c4c598cba0d8fb8a269df36173ed824e98f3dd44d6bd0551

    SHA512

    a62d1217f97cce0760b27e9a6905c6fd6dfccd1639633da21de63bdb3cffa903bb1b62c8d932e27ab56514bdf5c4724a044cada344e342d655a0108c23c80947

  • \Users\Admin\AppData\Local\Temp\Opera Installer Temp\f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375.exe

    Filesize

    2.1MB

    MD5

    0714c6175587f4599ac58375115df70a

    SHA1

    3fc4086f03d60e15b99a0b72624ecc8ccb84aaee

    SHA256

    f3ac2998aa3e9d24f44ec29b04fd224fae0acd92762bb31ad9c386b66b1ea375

    SHA512

    84763d69c8c911ec0e7043c9bc53881cb2b9e8a7bb08ec4af2df78670c957627753f959abf0a9c53ba5f0b2660a9634fd0629fc2f47139755da52da95f63c938

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2210280215298481048.dll

    Filesize

    2.9MB

    MD5

    d4b6dd869f83ff4f989a8a1b175a5c3a

    SHA1

    3eb0ac3870e1c86345f9599ccace775a0fa34291

    SHA256

    ad240011c044c55bd86b5dbaa16a06aedbef340f60669b763d48222b2c9e91e6

    SHA512

    28383cd64d61cf9749e86b1de37cdb8df317fa359e3b37ed739cbd29b7331eaaad202803d0002a3819feedf31ee81a42d99727cd42057f64b1b7a3c97c212a95

  • \Users\Admin\AppData\Local\Temp\Opera_installer_221028021530282948.dll

    Filesize

    2.9MB

    MD5

    d4b6dd869f83ff4f989a8a1b175a5c3a

    SHA1

    3eb0ac3870e1c86345f9599ccace775a0fa34291

    SHA256

    ad240011c044c55bd86b5dbaa16a06aedbef340f60669b763d48222b2c9e91e6

    SHA512

    28383cd64d61cf9749e86b1de37cdb8df317fa359e3b37ed739cbd29b7331eaaad202803d0002a3819feedf31ee81a42d99727cd42057f64b1b7a3c97c212a95

  • \Users\Admin\AppData\Local\Temp\Opera_installer_221028021530967296.dll

    Filesize

    2.9MB

    MD5

    d4b6dd869f83ff4f989a8a1b175a5c3a

    SHA1

    3eb0ac3870e1c86345f9599ccace775a0fa34291

    SHA256

    ad240011c044c55bd86b5dbaa16a06aedbef340f60669b763d48222b2c9e91e6

    SHA512

    28383cd64d61cf9749e86b1de37cdb8df317fa359e3b37ed739cbd29b7331eaaad202803d0002a3819feedf31ee81a42d99727cd42057f64b1b7a3c97c212a95

  • memory/296-66-0x0000000000940000-0x0000000000D09000-memory.dmp

    Filesize

    3.8MB

  • memory/296-69-0x0000000000940000-0x0000000000D09000-memory.dmp

    Filesize

    3.8MB

  • memory/948-65-0x0000000000960000-0x0000000000D29000-memory.dmp

    Filesize

    3.8MB

  • memory/1048-63-0x0000000000960000-0x0000000000D29000-memory.dmp

    Filesize

    3.8MB

  • memory/1048-64-0x0000000002AC0000-0x0000000002E89000-memory.dmp

    Filesize

    3.8MB

  • memory/1048-55-0x00000000759F1000-0x00000000759F3000-memory.dmp

    Filesize

    8KB