Analysis

  • max time kernel
    48s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 17:52

General

  • Target

    b87d037030f0c70f74411c56163e9342748b76cd4d8ee2727ed672b8311efac3.exe

  • Size

    99KB

  • MD5

    51b747992c160ffff02c9e577b8577c5

  • SHA1

    6f661daab8849978d531451747228ec530bd2d96

  • SHA256

    b87d037030f0c70f74411c56163e9342748b76cd4d8ee2727ed672b8311efac3

  • SHA512

    28c7e34cbf906cd55af64e6226aa48b17b57984f1fc95d9c2c52a4cdb52ab90025e7f7fb2960456c93d6798a49a9882992bf3e2253929bef3b3cb72b9a268122

  • SSDEEP

    1536:Wdb/vBxIdFlU0AfLhANuIj7Aw6RuNSHSNyszvlk1jEqoSWJY66dlaU26kxnDtoIJ:WnilMfONuXw6RuNDAsjlkDQC66DZGvJ

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b87d037030f0c70f74411c56163e9342748b76cd4d8ee2727ed672b8311efac3.exe
    "C:\Users\Admin\AppData\Local\Temp\b87d037030f0c70f74411c56163e9342748b76cd4d8ee2727ed672b8311efac3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Local\Temp\GammaXvid.exe
      C:\Users\Admin\AppData\Local\Temp\GammaXvid.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:820
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 820 -s 396
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1220

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • \Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • \Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • \Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • \Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • \Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • \Users\Admin\AppData\Local\Temp\GammaXvid.exe

    Filesize

    45KB

    MD5

    95973a2b3f841b676126b406b704913d

    SHA1

    5a82d6292dfcff060b0ce46cfa66ed00f6071c1a

    SHA256

    e72ba5c311ceb6bd2d89352ff2b1af45aaaaaf87ee1b192cd094e66774af914d

    SHA512

    8794f222ab4d0438d487307ff042a92b2bd7820de664354a0158984f9baee93b035984f051a7f809dfaf84ceb160527f6b23a9d16372ed173e1bbd3a25cd947d

  • memory/820-65-0x0000000000160000-0x0000000000167000-memory.dmp

    Filesize

    28KB

  • memory/820-66-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1364-54-0x0000000075091000-0x0000000075093000-memory.dmp

    Filesize

    8KB