Analysis

  • max time kernel
    296s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-07-2024 17:19

General

  • Target

    02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO/OperaSetup.exe

  • Size

    2.6MB

  • MD5

    71b3c6bb3ca386072e173a17cf720cf3

  • SHA1

    586a107da171e32770164b4f9c627a04665df140

  • SHA256

    8f4605e8841a45137cfebc68b149ed7bef4fb6cc0ca53e6ecdf7a5eb56d04b4b

  • SHA512

    f927d19593680519347d74958dfb6d798fd1c25c215236840b823e4a68a1a63102771b3290d73fb6264a7893590b60220644ca2e90b76afad700b169057bef75

  • SSDEEP

    49152:iJ33Y9YCBrwHs92lWrB1/8dVxLorTMQh4V+bntpC4qh11pmoV8h3k1S1IMhbhgJJ:e0YuMM4oFeorZ4KM4I1pmw8h3kcyEbhC

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 8 IoCs

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

  • Enumerates connected drives 3 TTPs 4 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.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=106.0.4998.52 --initial-client-data=0x2f0,0x2f4,0x2f8,0x2cc,0x2fc,0x74ad9530,0x74ad953c,0x74ad9548
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3116
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\OperaSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\OperaSetup.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:684
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1640
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3940
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\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=112.0.5197.30 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x228f40,0x228f4c,0x228f58
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2860
    • C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.exe" --backend --install --import-browser-data=0 --enable-stats=1 --enable-installer-stats=1 --consent-given=1 --general-interests=1 --general-location=1 --personalized-content=1 --personalized-ads=1 --launchopera=1 --installfolder="C:\Users\Admin\AppData\Local\Programs\Opera" --profile-folder --language=en --singleprofile=0 --copyonly=0 --allusers=0 --setdefaultbrowser=1 --pintotaskbar=1 --pintostartmenu=1 --run-at-startup=1 --show-intro-overlay --server-tracking-data=server_tracking_data --initial-pid=4584 --package-dir-prefix="C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_20240723172030" --session-guid=5adc6dda-0dfd-42c3-bc08-3586b230ed82 --server-tracking-blob=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 --desktopshortcut=1 --wait-for-package --initial-proc-handle=580A000000000000
      2⤵
      • Loads dropped DLL
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:412
      • C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.exe
        "C:\Users\Admin\AppData\Local\Temp\02-CITACION DEMANADA-JUZGADO 01 PROMISCUO DEL CIRCUITO\OperaSetup.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=106.0.4998.52 --initial-client-data=0x2e4,0x2e8,0x2ec,0x2bc,0x2fc,0x71e79530,0x71e7953c,0x71e79548
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2.6MB

    MD5

    71b3c6bb3ca386072e173a17cf720cf3

    SHA1

    586a107da171e32770164b4f9c627a04665df140

    SHA256

    8f4605e8841a45137cfebc68b149ed7bef4fb6cc0ca53e6ecdf7a5eb56d04b4b

    SHA512

    f927d19593680519347d74958dfb6d798fd1c25c215236840b823e4a68a1a63102771b3290d73fb6264a7893590b60220644ca2e90b76afad700b169057bef75

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\additional_file0.tmp

    Filesize

    2.6MB

    MD5

    1bf64fd766bd850bcf8e0ffa9093484b

    SHA1

    01524bb2c88b7066391da291ee474004a4904891

    SHA256

    58794b1bf4d84bd7566ee89fd8a8a4157dc70c598d229ec5101959f30b6f3491

    SHA512

    cdf2830edc5d4f30beae41591f3a1bcff820f75444d70338a4c6d36e10df43475f383a9f291b619a008452c53e0dddf65547f217386389000535d6d264854e7f

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\assistant_installer.exe

    Filesize

    1.9MB

    MD5

    9afe96db501220cf42b262fdac954dc8

    SHA1

    d3471998f674b267256e72a30977a79abcd8fca9

    SHA256

    fc5608bf95bb02e889aa9be15abc5c066acd62ba07f886b323383e75909a2566

    SHA512

    ecff52ca7467e3948faa244c1fc7c3d4d1f1dbe74077d071b78147729a078cc6a676212e0606111edcf542d554045c4f5a4d502545b2f0a285cda6c5d0b69b27

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\dbgcore.dll

    Filesize

    166KB

    MD5

    e0274730d20eb9571d59f2da20d165a2

    SHA1

    b746aeca5f7cbee0de163309c9d207c94f9b8d64

    SHA256

    c5c4c6430bcfe6118a4f499c94afa460401e369dc548a24688532c95fd202ec5

    SHA512

    d95998b69e6c3d25037e12e038f2773960de2d18df1af0342fd805c7c349bd630a21d0e0fe7490baaf274e90781ebf6a2667e64593f9d91174d040bfe640bddf

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202407231720301\assistant\dbghelp.dll

    Filesize

    1.7MB

    MD5

    6e9976cc7b2def7a37106703e47626a5

    SHA1

    edcb4758f8ee56e9c6515f912d5024aeca9ead50

    SHA256

    fd8840fab4b61db4e9e09168e5b1b4f0e9bfea0a64482fd475ab63c712b92b9c

    SHA512

    27091e6ad001dac22897a295806925e02f693096d79667e587de74ca955ffb9b2773b22c83e306e7164862524e02ad028e68684c2ca7d9e4da1ff03787dd40ca

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2407231720296784584.dll

    Filesize

    4.3MB

    MD5

    b1085cdb5d65bcd0cf3377fbfe105ae2

    SHA1

    b3bff4b822b465b7e85f0b045c7868e782918c24

    SHA256

    d0757ec9c955d9682d5c5cb35e1b8e2f467b82c74f373961c40e46a25f65e356

    SHA512

    cab32e94a250ef457829c7b1ebe1fdc895c9f58afca458af5972e86ef8c5ed13f73c14261b49ed6600105eafa27a2c49b595a2f4230944a328ea880e7aea36af

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

    Filesize

    40B

    MD5

    13aa0cc21a2733c4663984303d9f0124

    SHA1

    739d184c211d6c198841a8d01c62499be7451809

    SHA256

    7612f39dad065c40d62bfefe535df997389bdf3498dcdaf368570e4ed46adc46

    SHA512

    dec987bfd0da47acc76f325f463bea1841e8cee9fd27947afa560bc93719ca2fa47498863102da9069c3732e9e30138d6029be1bb2e6f3d7e8604651dc883f1f

  • memory/412-120-0x0000000000E40000-0x0000000001328000-memory.dmp

    Filesize

    4.9MB

  • memory/684-12-0x0000000000FE0000-0x00000000014C8000-memory.dmp

    Filesize

    4.9MB

  • memory/684-18-0x0000000000FE0000-0x00000000014C8000-memory.dmp

    Filesize

    4.9MB

  • memory/2496-121-0x0000000000E40000-0x0000000001328000-memory.dmp

    Filesize

    4.9MB

  • memory/3116-37-0x0000000000E40000-0x0000000001328000-memory.dmp

    Filesize

    4.9MB

  • memory/4584-36-0x0000000000E40000-0x0000000001328000-memory.dmp

    Filesize

    4.9MB

  • memory/4584-0-0x0000000000E40000-0x0000000001328000-memory.dmp

    Filesize

    4.9MB