Analysis

  • max time kernel
    125s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2024 00:56

General

  • Target

    2d26eb98fcdf847c50109793703dcfcc7aa30373c37f959aee580540339dea31.exe

  • Size

    2.0MB

  • MD5

    d55b45b34c5d9e2b6ec4b3762a4b61d1

  • SHA1

    273fcec3b1318e46e4a6fb34ca936654cca619d1

  • SHA256

    2d26eb98fcdf847c50109793703dcfcc7aa30373c37f959aee580540339dea31

  • SHA512

    cb8dcda164939917f51637293dc805805bfca915cf58cbcb5e1267b8ff924c82b4f4f59095692ffd612ff8ba7a0dd2a7480d5d0d8a2ef8c950a6dd5a456e89fc

  • SSDEEP

    49152:1VAbwuGwKOco09gsJcxlV8fTguPOAItUIrhO5Ov:jApQx5+Mc27g9tfoMv

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.

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2d26eb98fcdf847c50109793703dcfcc7aa30373c37f959aee580540339dea31.exe
    "C:\Users\Admin\AppData\Local\Temp\2d26eb98fcdf847c50109793703dcfcc7aa30373c37f959aee580540339dea31.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Users\Admin\AppData\Local\Temp\7zSC4FA4877\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zSC4FA4877\setup.exe
      2⤵
      • Executes dropped EXE
      • 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:3236
      • C:\Users\Admin\AppData\Local\Temp\7zSC4FA4877\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zSC4FA4877\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=112.0.5197.53 --initial-client-data=0x324,0x328,0x32c,0x300,0x330,0x741fa174,0x741fa180,0x741fa18c
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1104
      • 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
        • System Location Discovery: System Language Discovery
        PID:4816
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408200056251\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408200056251\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4352
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408200056251\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408200056251\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408200056251\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408200056251\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,0x518f40,0x518f4c,0x518f58
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:1164

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_202408200056251\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_202408200056251\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_202408200056251\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_202408200056251\assistant\dbghelp.dll

    Filesize

    1.7MB

    MD5

    6e9976cc7b2def7a37106703e47626a5

    SHA1

    edcb4758f8ee56e9c6515f912d5024aeca9ead50

    SHA256

    fd8840fab4b61db4e9e09168e5b1b4f0e9bfea0a64482fd475ab63c712b92b9c

    SHA512

    27091e6ad001dac22897a295806925e02f693096d79667e587de74ca955ffb9b2773b22c83e306e7164862524e02ad028e68684c2ca7d9e4da1ff03787dd40ca

  • C:\Users\Admin\AppData\Local\Temp\7zSC4FA4877\setup.exe

    Filesize

    5.2MB

    MD5

    44908c157516d82119d84a3b1c4a31f7

    SHA1

    dea19891d14b4e3598844f624c919b0dc5ce236f

    SHA256

    be21539218a31ff278f218a172b9972f4d8978a281387acdadf9a25b86e30b1a

    SHA512

    5a83d45533202ba573941d041619bd7f17e997f352f73528029d1f07da9a26c4f50f1cf77c822f972b596fa75bd2eeb0bca8170d89343d8b590ba869be058106

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408200056248223236.dll

    Filesize

    4.7MB

    MD5

    d7b7e0f7865a3cc624e95cefe2bc205c

    SHA1

    1352733bfaa54292d1457d3f7a87069c00a1f56f

    SHA256

    94028494f0c28a14f21179ef4096e0c52f1d022a5ad65b070f0d8584b500b597

    SHA512

    e5bced68446f702de4236a6f11ec005bc5233915ff689693a1894afe7ea924ca6d6d8ae722b12daa0ee0b4e35223606a55f13b34db648bfb24e96a76e834ff08

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

    Filesize

    40B

    MD5

    15f832977c84b6414b1963447f21d292

    SHA1

    adf625eee2961c55c2f77d6240cc5dff782bce85

    SHA256

    ef4653e0d041e2bd23b20f0f11fe85bfd1e34daa6833201d670cfbdaeccffc3e

    SHA512

    1a8332fb11b8142f4a9850d3c4d1140aef4eac2ac271656e09bcc6cb3b21b07560aedb38cf96d928e21d7461b8a7ddf2108fb334265220e991d36de36a94df18