Analysis

  • max time kernel
    55s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2023 16:36

General

  • Target

    7z2201-x64.exe

  • Size

    1.5MB

  • MD5

    a6a0f7c173094f8dafef996157751ecf

  • SHA1

    c0dcae7c4c80be25661d22400466b4ea074fc580

  • SHA256

    b055fee85472921575071464a97a79540e489c1c3a14b9bdfbdbab60e17f36e4

  • SHA512

    965d43f06d104bf6707513c459f18aaf8b049f4a043643d720b184ed9f1bb6c929309c51c3991d5aaff7b9d87031a7248ee3274896521abe955d0e49f901ac94

  • SSDEEP

    24576:mGIyixBMj+/A2d+UKnvT+LwZWj7iDDVVYrz0rbzGTw3DoA/sk6smE:mGbj+/BpKnvyIxVV/XDoAfmE

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7z2201-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\7z2201-x64.exe"
    1⤵
    • Loads dropped DLL
    • Registers COM server for autorun
    • Drops file in Program Files directory
    • Modifies registry class
    PID:1204
  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Desktop\ExpandReset.rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

    Filesize

    20KB

    MD5

    bdce4ce9eeb76dd10353de731133e39f

    SHA1

    9b377c42e0a860adc3d4a9943162a4109d445283

    SHA256

    156c65f79d0a3f6901a0a7f7d34f757678e3dab539b7b12d852fa8da6926c6bc

    SHA512

    034f16a38baba56ed79139625e5ad4f430963164731ca5b438f2ceff9792637b92d201024b54b22d1dbcd8748610583fda0923c6f36ae50dd718bbe1e0c5f01c

  • \Program Files\7-Zip\7zFM.exe

    Filesize

    935KB

    MD5

    d36deceeb4c9645aab2ded86608d090b

    SHA1

    912f4658c4b046fbadd084912f9126cb1ae3737b

    SHA256

    018d74ff917692124dee0a8a7e6302aecd219d79b049ad95f2f4eedea41b4a45

    SHA512

    9752a9e57dd2e6cd454ba6c2d041d884369734c2b62c53d3ec4854731c398cd6e25ac75f7a55cda9d4b4c2efb074cb2e6efcbf3080cd8cc7d9bc8c9a25f62ff2

  • memory/636-274-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/636-305-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB