Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2022 22:30

General

  • Target

    082468775e71a0573a6d1b7b9707b223.exe

  • Size

    186KB

  • MD5

    082468775e71a0573a6d1b7b9707b223

  • SHA1

    f505f7bf8fd71f4fd520734e97b2dcd0a0363ed0

  • SHA256

    1931ee3bb9562721ab65d6643d51c2b37879ed3347c1e96a3d27865c8e3d355a

  • SHA512

    f73109d944266e4be46a6829e3eb07fa7210b6a0f310e2a5d2a45955b780a223a5fc9b9a11cfe56eddc6b775dff9f181c6e3be8929c74475ec3e933039373079

  • SSDEEP

    3072:PAUr6milNYXJb3r7lkKgy6bgXBA8Ug6JPaJHiTsPrcqZH2FZxzqY6FKVwgeYENV:4h7iXJb3f8RgbUJCAuH2FZRqY6FKVwgq

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\082468775e71a0573a6d1b7b9707b223.exe
    "C:\Users\Admin\AppData\Local\Temp\082468775e71a0573a6d1b7b9707b223.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:740
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1672
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM AvastUI.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    186KB

    MD5

    082468775e71a0573a6d1b7b9707b223

    SHA1

    f505f7bf8fd71f4fd520734e97b2dcd0a0363ed0

    SHA256

    1931ee3bb9562721ab65d6643d51c2b37879ed3347c1e96a3d27865c8e3d355a

    SHA512

    f73109d944266e4be46a6829e3eb07fa7210b6a0f310e2a5d2a45955b780a223a5fc9b9a11cfe56eddc6b775dff9f181c6e3be8929c74475ec3e933039373079

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

    Filesize

    186KB

    MD5

    082468775e71a0573a6d1b7b9707b223

    SHA1

    f505f7bf8fd71f4fd520734e97b2dcd0a0363ed0

    SHA256

    1931ee3bb9562721ab65d6643d51c2b37879ed3347c1e96a3d27865c8e3d355a

    SHA512

    f73109d944266e4be46a6829e3eb07fa7210b6a0f310e2a5d2a45955b780a223a5fc9b9a11cfe56eddc6b775dff9f181c6e3be8929c74475ec3e933039373079

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

    Filesize

    186KB

    MD5

    082468775e71a0573a6d1b7b9707b223

    SHA1

    f505f7bf8fd71f4fd520734e97b2dcd0a0363ed0

    SHA256

    1931ee3bb9562721ab65d6643d51c2b37879ed3347c1e96a3d27865c8e3d355a

    SHA512

    f73109d944266e4be46a6829e3eb07fa7210b6a0f310e2a5d2a45955b780a223a5fc9b9a11cfe56eddc6b775dff9f181c6e3be8929c74475ec3e933039373079

  • memory/740-57-0x0000000000000000-mapping.dmp

  • memory/740-62-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB

  • memory/740-66-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB

  • memory/928-64-0x0000000000000000-mapping.dmp

  • memory/1672-63-0x0000000000000000-mapping.dmp

  • memory/2020-54-0x0000000075451000-0x0000000075453000-memory.dmp

    Filesize

    8KB

  • memory/2020-55-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB

  • memory/2020-61-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB