Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    22-10-2021 03:17

General

  • Target

    PROFORMA COPY.exe

  • Size

    338KB

  • MD5

    5936715a6a40ec84592e71ccfdfc1daa

  • SHA1

    380440d5690a8ed799138022a7b7678c0323c2bb

  • SHA256

    3509582c5fa8e6a4cc257c72e67eec511a90790a60185bce44303fc2c39be80c

  • SHA512

    d6610529fd75087bee83fc33cbc57ba1ae1ce81ab4c8e98e57b1d0b7b489cc6116db3bc6c58bc5b9c8a906d41da05305a77d90db989f0e375006fb9c42de032b

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PROFORMA COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\PROFORMA COPY.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Users\Admin\AppData\Local\Temp\PROFORMA COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\PROFORMA COPY.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2424

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsbBA2A.tmp\kivlxw.dll

    MD5

    575dc70fae96e23a93aef3ebfdfb525b

    SHA1

    7589bbf471165323d4c0e92b8be101d95cbbeb2f

    SHA256

    bc3cc067575a5ec3bd8fb5d1329b6f32586fd09f038fc5fafac92c2da081711e

    SHA512

    e385b8286ffeab6252e6b99a1434b9c7526edf128e6558718add8edf0b60e24a9fc82aee34986fb517907ac966dbe7847d0115b53357f49d43c46acd1dc0a334

  • memory/2424-117-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2424-118-0x000000000040188B-mapping.dmp

  • memory/2424-120-0x00000000023E0000-0x00000000023E1000-memory.dmp

    Filesize

    4KB

  • memory/2424-119-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2424-122-0x00000000023E2000-0x00000000023E4000-memory.dmp

    Filesize

    8KB

  • memory/2424-121-0x00000000023E1000-0x00000000023E2000-memory.dmp

    Filesize

    4KB

  • memory/2424-123-0x00000000023E7000-0x00000000023E8000-memory.dmp

    Filesize

    4KB

  • memory/2424-124-0x00000000023E8000-0x00000000023E9000-memory.dmp

    Filesize

    4KB

  • memory/2424-125-0x00000000023ED000-0x00000000023EF000-memory.dmp

    Filesize

    8KB