Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    01/01/2022, 23:01

General

  • Target
    ff65678185a258e7673550fb7e84260f.exe
  • Size 713KB
  • Sample220101-2zjc2agdgp
  • SHA256 8531f21496d70ac1be7776820ceaae3dd210d71b8a91d61c2e8b37f7daadcc48
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff65678185a258e7673550fb7e84260f.exe
    "C:\Users\Admin\AppData\Local\Temp\ff65678185a258e7673550fb7e84260f.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Roaming\Green\neofim.exe
      neofim.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:788

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/788-62-0x0000000000548000-0x0000000000574000-memory.dmp

        memory/788-67-0x0000000002032000-0x0000000002033000-memory.dmp

        memory/788-70-0x0000000002034000-0x0000000002036000-memory.dmp

        memory/788-69-0x0000000004770000-0x00000000047A2000-memory.dmp

        memory/788-68-0x0000000002033000-0x0000000002034000-memory.dmp

        memory/788-63-0x0000000002070000-0x00000000020A4000-memory.dmp

        memory/788-65-0x0000000000400000-0x0000000000485000-memory.dmp

        memory/788-64-0x00000000002D0000-0x0000000000309000-memory.dmp

        memory/788-66-0x0000000002031000-0x0000000002032000-memory.dmp

        memory/1884-56-0x00000000004E0000-0x00000000005AE000-memory.dmp

        memory/1884-54-0x0000000000628000-0x0000000000694000-memory.dmp

        memory/1884-55-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

        memory/1884-57-0x0000000000400000-0x00000000004D4000-memory.dmp