Analysis

  • max time kernel
    75s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    13/08/2020, 10:03

General

  • Target
    Proforma Inv.exe
  • Size 800KB
  • Sample200813-c6vx6qqmtj
  • SHA256 e6a9bbee2b3b1dec06bfcddd17711777d7d14171e9c180a7310f6bb9cabf6879
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.peregrrineeye.com

  • Port

    587

  • Password

    Tk5:nAjy*6*m

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Proforma Inv.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Inv.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Users\Admin\AppData\Local\Temp\Proforma Inv.exe
      "C:\Users\Admin\AppData\Local\Temp\Proforma Inv.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:428

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/428-0-0x0000000000400000-0x00000000004C1000-memory.dmp

        memory/428-2-0x0000000000400000-0x00000000004C1000-memory.dmp

        memory/428-3-0x0000000000400000-0x00000000004C1000-memory.dmp

        memory/428-4-0x0000000002200000-0x000000000225A000-memory.dmp

        memory/428-5-0x0000000002302000-0x0000000002303000-memory.dmp

        memory/428-6-0x0000000073AA0000-0x000000007418E000-memory.dmp

        memory/428-9-0x0000000004B20000-0x0000000004B21000-memory.dmp

        memory/428-10-0x0000000004900000-0x0000000004901000-memory.dmp

        memory/428-11-0x00000000022D0000-0x00000000022D1000-memory.dmp

        memory/428-12-0x0000000005510000-0x0000000005511000-memory.dmp

        memory/428-13-0x0000000005B60000-0x0000000005B61000-memory.dmp

        memory/428-14-0x0000000005D40000-0x0000000005D41000-memory.dmp