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Analysis

  • max time kernel
    67s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2023, 19:45

General

  • Target

    db9a6fbe4b041c81827e173ccb56d3dd.exe

  • Size

    3.4MB

  • MD5

    db9a6fbe4b041c81827e173ccb56d3dd

  • SHA1

    3602aafd1c2d3915b69b0973c46697f77d55ca30

  • SHA256

    a78a93dadce78ea656d8ce617f606fc643d3c7c770dcae0a0e4f57b8e26d9e8d

  • SHA512

    d4c323496350633201e799c44dbe37a767dbfaefd15d9c743755f5df9f5fd739a5361c29b9ed4cdcb73417457740e4feafe99adbe448bd75700fb115645a108e

  • SSDEEP

    98304:xCQCHKWku5EgWanSVOiNa5isQaY4u5R7/tTixMgGBQOr3hbJoZm0oceqHFk8puAH:xCQCH9pC6p5isQp4Utzj3hbJo1o+HFk0

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 4 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 13 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe
    "C:\Users\Admin\AppData\Local\Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Users\Admin\AppData\Local\Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe
      C:\Users\Admin\AppData\Local\Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=94.0.4606.79 --initial-client-data=0x2f4,0x2f8,0x2fc,0x2d0,0x300,0x7567e660,0x7567e670,0x7567e67c
      2⤵
      • Loads dropped DLL
      PID:3144
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4944
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:1744
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2388
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=73.0.3856.382 --initial-client-data=0x270,0x274,0x278,0x24c,0x27c,0x894f48,0x894f58,0x894f64
        3⤵
        • Executes dropped EXE
        PID:2312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\db9a6fbe4b041c81827e173ccb56d3dd.exe

    Filesize

    3.4MB

    MD5

    db9a6fbe4b041c81827e173ccb56d3dd

    SHA1

    3602aafd1c2d3915b69b0973c46697f77d55ca30

    SHA256

    a78a93dadce78ea656d8ce617f606fc643d3c7c770dcae0a0e4f57b8e26d9e8d

    SHA512

    d4c323496350633201e799c44dbe37a767dbfaefd15d9c743755f5df9f5fd739a5361c29b9ed4cdcb73417457740e4feafe99adbe448bd75700fb115645a108e

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\_sfx.exe

    Filesize

    1.4MB

    MD5

    e9a2209b61f4be34f25069a6e54affea

    SHA1

    6368b0a81608c701b06b97aeff194ce88fd0e3c0

    SHA256

    e950f17f4181009eeafa9f5306e8a9dfd26d88ca63b1838f44ff0efc738e7d1f

    SHA512

    59e46277ca79a43ed8b0a25b24eff013e251a75f90587e013b9c12851e5dd7283b6172f7d48583982f6a32069457778ee440025c1c754bf7bb6ce8ae1d2c3fc5

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\_sfx.exe

    Filesize

    1.4MB

    MD5

    e9a2209b61f4be34f25069a6e54affea

    SHA1

    6368b0a81608c701b06b97aeff194ce88fd0e3c0

    SHA256

    e950f17f4181009eeafa9f5306e8a9dfd26d88ca63b1838f44ff0efc738e7d1f

    SHA512

    59e46277ca79a43ed8b0a25b24eff013e251a75f90587e013b9c12851e5dd7283b6172f7d48583982f6a32069457778ee440025c1c754bf7bb6ce8ae1d2c3fc5

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\assistant_installer.exe

    Filesize

    1.8MB

    MD5

    4c8fbed0044da34ad25f781c3d117a66

    SHA1

    8dd93340e3d09de993c3bc12db82680a8e69d653

    SHA256

    afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

    SHA512

    a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

  • C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202301302045591\assistant\assistant_installer.exe

    Filesize

    1.8MB

    MD5

    4c8fbed0044da34ad25f781c3d117a66

    SHA1

    8dd93340e3d09de993c3bc12db82680a8e69d653

    SHA256

    afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

    SHA512

    a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2301302045568491048.dll

    Filesize

    5.0MB

    MD5

    e92b0312740dae159b30fa3416fbbf8a

    SHA1

    12ee03f89a0311da3b236d34c8faa93c89b1fcfb

    SHA256

    d3887408ccdfb5a8d7c058d452e39a01d209edeffe93387381f75fe6c15ede79

    SHA512

    aa0397f648a985a1089a16fe978a873d5ef9550042c2d527871505311ece7e713d0e0b10fe08944017b1dd9c75414ce1bd4d10cb76ec2c4462a3275fffcfdc10

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2301302045584583144.dll

    Filesize

    5.0MB

    MD5

    e92b0312740dae159b30fa3416fbbf8a

    SHA1

    12ee03f89a0311da3b236d34c8faa93c89b1fcfb

    SHA256

    d3887408ccdfb5a8d7c058d452e39a01d209edeffe93387381f75fe6c15ede79

    SHA512

    aa0397f648a985a1089a16fe978a873d5ef9550042c2d527871505311ece7e713d0e0b10fe08944017b1dd9c75414ce1bd4d10cb76ec2c4462a3275fffcfdc10

  • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2301302045589734944.dll

    Filesize

    5.0MB

    MD5

    e92b0312740dae159b30fa3416fbbf8a

    SHA1

    12ee03f89a0311da3b236d34c8faa93c89b1fcfb

    SHA256

    d3887408ccdfb5a8d7c058d452e39a01d209edeffe93387381f75fe6c15ede79

    SHA512

    aa0397f648a985a1089a16fe978a873d5ef9550042c2d527871505311ece7e713d0e0b10fe08944017b1dd9c75414ce1bd4d10cb76ec2c4462a3275fffcfdc10

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

    Filesize

    40B

    MD5

    679fdc513210d833da626307e2715471

    SHA1

    a08131b0301525d504bb09569e6e72ca5f1b7aa2

    SHA256

    32e86e6f6a0e981795490bba3584b510fb9b0900c36ac1e153ba2b932cf983cf

    SHA512

    598f60b4dc9f2c8867d93266d6bd313003dfd81604be5e640e626002930b4572e481800e8d840dcee465202130376e6c4bf753af7b463e2e780528a7a0afbf13

  • memory/1048-141-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB

  • memory/1048-132-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB

  • memory/3144-140-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB

  • memory/4944-139-0x0000000000400000-0x00000000009A8000-memory.dmp

    Filesize

    5.7MB