Analysis

  • max time kernel
    171s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 06:40

General

  • Target

    19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe

  • Size

    2.3MB

  • MD5

    11a48fed13ca5b3319984561442755f0

  • SHA1

    ff4c531d00d354b2259187127a6cf5052623721c

  • SHA256

    19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba

  • SHA512

    c70986ae988d542c7b9b4bd02113a44580cbd165f429f4cb4e09823c61eae880cabbac603c5ea42dfb38e6632a92b704bb2245c9e26806b6f1f392089a17e7de

  • SSDEEP

    49152:voyj9KS3BbGW6dhqnMk67CzHb9oGCQW3p/CM6695PvygQ:wyjkSxGhxaWpQWwoTQ

Score
8/10

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 3 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 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe
    "C:\Users\Admin\AppData\Local\Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Users\Admin\AppData\Local\Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe
      C:\Users\Admin\AppData\Local\Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.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=62.0.3331.116 --initial-client-data=0x270,0x284,0x288,0x280,0x28c,0x75454570,0x75454580,0x7545458c
      2⤵
      • Loads dropped DLL
      PID:3280
    • C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe
      "C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4172

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Opera Installer Temp\19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba.exe

    Filesize

    2.3MB

    MD5

    11a48fed13ca5b3319984561442755f0

    SHA1

    ff4c531d00d354b2259187127a6cf5052623721c

    SHA256

    19b0128a7fcf03a40c311927cb9257b110675463949963981e44fd6844f12aba

    SHA512

    c70986ae988d542c7b9b4bd02113a44580cbd165f429f4cb4e09823c61eae880cabbac603c5ea42dfb38e6632a92b704bb2245c9e26806b6f1f392089a17e7de

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2212060741158552404.dll

    Filesize

    3.2MB

    MD5

    66f79a35f77858eea45013baa3046882

    SHA1

    fa9056c9c2f3690424c500286f3f8c13e44c6494

    SHA256

    95006bb00e9b25b119f06d003a92558545024ad8eb8db0f94f86689d48097f75

    SHA512

    d661cd68862b6ebcdf25bd9e9bfcb192e5e714f21993721c976752b6d4409b140862af6d5518f7c56ae9bc9a88db87d617f969326fba5c3e285bcd9b2893e687

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2212060741164643280.dll

    Filesize

    3.2MB

    MD5

    66f79a35f77858eea45013baa3046882

    SHA1

    fa9056c9c2f3690424c500286f3f8c13e44c6494

    SHA256

    95006bb00e9b25b119f06d003a92558545024ad8eb8db0f94f86689d48097f75

    SHA512

    d661cd68862b6ebcdf25bd9e9bfcb192e5e714f21993721c976752b6d4409b140862af6d5518f7c56ae9bc9a88db87d617f969326fba5c3e285bcd9b2893e687

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2212060741398084172.dll

    Filesize

    3.2MB

    MD5

    66f79a35f77858eea45013baa3046882

    SHA1

    fa9056c9c2f3690424c500286f3f8c13e44c6494

    SHA256

    95006bb00e9b25b119f06d003a92558545024ad8eb8db0f94f86689d48097f75

    SHA512

    d661cd68862b6ebcdf25bd9e9bfcb192e5e714f21993721c976752b6d4409b140862af6d5518f7c56ae9bc9a88db87d617f969326fba5c3e285bcd9b2893e687

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

    Filesize

    40B

    MD5

    a1f47d8bd9ab804e45007e882c278525

    SHA1

    f7cd915fe38f94185331629dafb6557df37515a6

    SHA256

    a0ed495c7ef5d35c62572332369d4baae2c69d4081a9c2bfedc1c6cddb8458a2

    SHA512

    047b3c7856ab7fc48eb4ce233afb36a0efcdbc734324131abb5d48780328ffbe1b59157a7ae8b5a2f30c4d3ed380ca775c58d1c0a6f5c9a06eaba8a9cbbf08c5

  • memory/2404-132-0x00000000003D0000-0x000000000081F000-memory.dmp

    Filesize

    4.3MB

  • memory/2404-136-0x00000000003D0000-0x000000000081F000-memory.dmp

    Filesize

    4.3MB

  • memory/3280-135-0x00000000003D0000-0x000000000081F000-memory.dmp

    Filesize

    4.3MB

  • memory/4172-142-0x0000000000D90000-0x00000000011DF000-memory.dmp

    Filesize

    4.3MB