Analysis

  • max time kernel
    125s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2022 12:32

General

  • Target

    83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256.exe

  • Size

    333KB

  • MD5

    48444f60f67180d443f9d9b42f6ffc30

  • SHA1

    26aee138c7ea5fc431fef8c481186f125a1550be

  • SHA256

    83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256

  • SHA512

    44b48d52b150f650bc927341dc8190affb4c73284710a399c4a29a18e6ef4798ca3031faf7f4223cbaa560aa7f84a8d48a9ce1846805e6a8b6a59b148d2bccf3

  • SSDEEP

    6144:S5SVBnXauL0gv6TZ9sVDk2Qy8wZ0VR3rRtUYqoCvBy8IO:SoyuT6TZ9w8wQR3LUfNBbI

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 3 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Control Panel 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256.exe
    "C:\Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Checks processor information in registry
    • Modifies Control Panel
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256Srv.exe
      C:\Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256Srv.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2020
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2020 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • C:\Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256Srv.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • C:\Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256Srv.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\O1BOVW0M.txt

    Filesize

    608B

    MD5

    423d3dcb59810ca56e1167e3a3b3065b

    SHA1

    6030c27c1917cf9cb938ce119b2af448817fc9b0

    SHA256

    26f97912ade5dabd9862aa6b193329b9e491ce914e7a274ecfe316db1dfc2808

    SHA512

    29c6c01401dc7bd16bbe263c5f1d7b8d90553fe25a5a91ecdad148bd8edfdc83c31b61670869a5c59d49e6325855670a632ee79f9fea045198067595cc2b07c6

  • \Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • \Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • \Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256Srv.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • \Users\Admin\AppData\Local\Temp\83c96cc290bde2258d4a9901cb55ab694d9f45d46bb4628c3d958dce856de256Srv.exe

    Filesize

    52KB

    MD5

    17efb7e40d4cadaf3a4369435a8772ec

    SHA1

    eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

    SHA256

    f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

    SHA512

    522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

  • memory/1676-57-0x0000000000000000-mapping.dmp

  • memory/1676-59-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1676-64-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1756-63-0x0000000000000000-mapping.dmp

  • memory/1756-69-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1944-66-0x00000000003A0000-0x00000000003FD000-memory.dmp

    Filesize

    372KB

  • memory/1944-54-0x00000000753C1000-0x00000000753C3000-memory.dmp

    Filesize

    8KB