Analysis

  • max time kernel
    21s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    17/09/2020, 13:28

General

  • Target
    ffb4a81fc336b1d77c81eef96eab0a5249ebb053c8920dd0c02e1d9f3ac257b0.exe
  • Size 384KB
  • Sample200917-bnytrvfrcx
  • SHA256 ffb4a81fc336b1d77c81eef96eab0a5249ebb053c8920dd0c02e1d9f3ac257b0
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Chimera 23 IoCs

    Ransomware which infects local and network files, often distributed via Dropbox links.

  • Chimera Ransomware Loader DLL 2 IoCs

    Drops/unpacks executable file which resembles Chimera's Loader.dll.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 175 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ffb4a81fc336b1d77c81eef96eab0a5249ebb053c8920dd0c02e1d9f3ac257b0.exe
    "C:\Users\Admin\AppData\Local\Temp\ffb4a81fc336b1d77c81eef96eab0a5249ebb053c8920dd0c02e1d9f3ac257b0.exe"
    1⤵
    • Chimera
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    PID:112

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/112-0-0x0000000010000000-0x0000000010010000-memory.dmp

        memory/112-1-0x00000000003F3000-0x00000000003F4000-memory.dmp

        memory/2012-2-0x000007FEF7ED0000-0x000007FEF814A000-memory.dmp