Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-04-2024 23:25

General

  • Target

    91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe

  • Size

    184KB

  • MD5

    dbc767e687183f87b77c8e6c30374117

  • SHA1

    bd1402933c18ff4c3e1ad023ff022c6a896c137b

  • SHA256

    91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f

  • SHA512

    e1f0dd5fef925f6c755d2ee36810601ebe76788e280ebbc3c3308d15f50cc793d7967c62de90382a4a5ec49b40be61fd01463ff980940af58d491d4d535341f2

  • SSDEEP

    3072:bjbLl/gvQoutgbqKo4L1Tj4mYWR/R4nkPR/1fplCbcqiDqmgeCGrHgPQ6YFjvBKG:bjluQoSsqaxIo5R4nM/sbx+qmgeCWgPc

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 1 IoCs
  • UPX dump on OEP (original entry point) 6 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 6 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 10 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe
    "C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe
      "C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2088
      • C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe
        "C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2408
    • C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe
      "C:\Users\Admin\AppData\Local\Temp\91a5dcbe155ba98a4921d00b5011ef53a303fde1a4d4033deef897788596074f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\brasilian porn bukkake lesbian feet .mpg.exe

    Filesize

    1.4MB

    MD5

    78ce9c7e427268067f0a45554adf8f52

    SHA1

    b3a75275135af03b91ba3e4d892c4eead5f480aa

    SHA256

    33ad8cf3cfce46ebaf8f218bf21ea78eccd583075213915feffd3ecb92c162d7

    SHA512

    62ec4ca9b9b076e9792ea611d42cf501ca726291187acc694a3d157deccd72b263be1cb0e9fde01c9deac2bb1f0248bda2196197416d6631b7adcceadf761358

  • C:\debug.txt

    Filesize

    183B

    MD5

    d9994679c2b9e032eceb8c952e58b17d

    SHA1

    df10091aa11c890e3f88523bdf4d6d61ebbc405c

    SHA256

    78e86c1ab043beb4567db219583cfb6067910ad6a0deb572c10a49445619a882

    SHA512

    5759207bde8e95658f399df2581853d3a676933b70c735212212cfe239bf415707d407744fe11c42b137e2e9a1342d3f9c9fd0d918c7971a4d5a32252448c398

  • memory/2088-13-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/2088-61-0x00000000047D0000-0x00000000047F9000-memory.dmp

    Filesize

    164KB

  • memory/2408-63-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/2420-64-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/3052-0-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/3052-12-0x0000000004AF0000-0x0000000004B19000-memory.dmp

    Filesize

    164KB

  • memory/3052-62-0x0000000005660000-0x0000000005689000-memory.dmp

    Filesize

    164KB