Analysis

  • max time kernel
    176s
  • max time network
    187s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 02:53

General

  • Target

    5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe

  • Size

    2.4MB

  • MD5

    44e805e6a73cc9aa145a1880b5121ed5

  • SHA1

    9afdb57b73e8cbb5ff13f2352703481ef3f932de

  • SHA256

    5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d

  • SHA512

    7950893416e20832d41f6c866f3d02ea609b99701824398c1f965c4cd97c12b7421fba72c4f142c653e8df5ac4a6f8c0530ba9f83745cf1cf1333cd6cfdc87d4

  • SSDEEP

    49152:OrGz6Twh2vmbJg48S3pbOSrowX038gWskigEc+2Eq0TVB9Bqhjy/Qt6r7:f6TDvmbJX80rowX0Mfskif2oBBGhj7tm

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe
    "C:\Users\Admin\AppData\Local\Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Users\Admin\AppData\Local\Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe
      C:\Users\Admin\AppData\Local\Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.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=68.0.3618.173 --initial-client-data=0x178,0x17c,0x180,0x14c,0x184,0x74770558,0x74770568,0x74770574
      2⤵
      • Loads dropped DLL
      PID:964
    • C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe
      "C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1048

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe

    Filesize

    2.4MB

    MD5

    44e805e6a73cc9aa145a1880b5121ed5

    SHA1

    9afdb57b73e8cbb5ff13f2352703481ef3f932de

    SHA256

    5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d

    SHA512

    7950893416e20832d41f6c866f3d02ea609b99701824398c1f965c4cd97c12b7421fba72c4f142c653e8df5ac4a6f8c0530ba9f83745cf1cf1333cd6cfdc87d4

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

    Filesize

    40B

    MD5

    78206f2d84475139c8d65c49b1ccc6ea

    SHA1

    734034113ec16cbff96fc90c4fa21565df69beeb

    SHA256

    b5f689af4dc5272ea60f8d71ef98a70f98880571acb2abdbe86acf075889bc9f

    SHA512

    f12e9ee749fe331a7de0bc0d678d33fdfd00a8e1fde43ab28b7f07d44ea926e2a5440a2f7bdf25c6e0013ec21a22196269d0aa58f4196744a02fe7080dca9206

  • \Users\Admin\AppData\Local\Temp\Opera Installer Temp\5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d.exe

    Filesize

    2.4MB

    MD5

    44e805e6a73cc9aa145a1880b5121ed5

    SHA1

    9afdb57b73e8cbb5ff13f2352703481ef3f932de

    SHA256

    5e956e660a87294c678892b2907cc42cac5543fb71a3364e089fd75b823a076d

    SHA512

    7950893416e20832d41f6c866f3d02ea609b99701824398c1f965c4cd97c12b7421fba72c4f142c653e8df5ac4a6f8c0530ba9f83745cf1cf1333cd6cfdc87d4

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2212010354183771636.dll

    Filesize

    3.2MB

    MD5

    17177fbb166b60e925432e142a5e9bf2

    SHA1

    4829e9593599b640c78948090af6578339df47c0

    SHA256

    4d2b8f2b1ef5fe1072763f6f6b588bce88f63d601406b9f846aebb28b115c967

    SHA512

    1ecf90c74da61ed2261aa56ff09627e6f9c3d84024fef777bc456a1bf396ac35cef0cc1ebd67ae5ccfc3dc2e6d17688e5a0405bea81e57bf486eff226a92913a

  • \Users\Admin\AppData\Local\Temp\Opera_installer_221201035420733964.dll

    Filesize

    3.2MB

    MD5

    17177fbb166b60e925432e142a5e9bf2

    SHA1

    4829e9593599b640c78948090af6578339df47c0

    SHA256

    4d2b8f2b1ef5fe1072763f6f6b588bce88f63d601406b9f846aebb28b115c967

    SHA512

    1ecf90c74da61ed2261aa56ff09627e6f9c3d84024fef777bc456a1bf396ac35cef0cc1ebd67ae5ccfc3dc2e6d17688e5a0405bea81e57bf486eff226a92913a

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2212010354218721048.dll

    Filesize

    3.2MB

    MD5

    17177fbb166b60e925432e142a5e9bf2

    SHA1

    4829e9593599b640c78948090af6578339df47c0

    SHA256

    4d2b8f2b1ef5fe1072763f6f6b588bce88f63d601406b9f846aebb28b115c967

    SHA512

    1ecf90c74da61ed2261aa56ff09627e6f9c3d84024fef777bc456a1bf396ac35cef0cc1ebd67ae5ccfc3dc2e6d17688e5a0405bea81e57bf486eff226a92913a

  • memory/964-66-0x0000000000AF0000-0x0000000000F4A000-memory.dmp

    Filesize

    4.4MB

  • memory/1048-68-0x00000000002B0000-0x000000000070A000-memory.dmp

    Filesize

    4.4MB

  • memory/1048-69-0x00000000002B0000-0x000000000070A000-memory.dmp

    Filesize

    4.4MB

  • memory/1636-54-0x0000000000AF0000-0x0000000000F4A000-memory.dmp

    Filesize

    4.4MB

  • memory/1636-56-0x00000000757B1000-0x00000000757B3000-memory.dmp

    Filesize

    8KB

  • memory/1636-67-0x0000000003270000-0x00000000036CA000-memory.dmp

    Filesize

    4.4MB

  • memory/1636-70-0x0000000000AF0000-0x0000000000F4A000-memory.dmp

    Filesize

    4.4MB

  • memory/1636-71-0x0000000002A20000-0x0000000002E7A000-memory.dmp

    Filesize

    4.4MB

  • memory/1636-72-0x0000000003270000-0x00000000036CA000-memory.dmp

    Filesize

    4.4MB