Analysis

  • max time kernel
    145s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    20-04-2021 05:46

General

  • Target

    PO-no 74GW0942.exe

  • Size

    837KB

  • MD5

    4cde3609b918d4ef83a1f50dd0e6bc8e

  • SHA1

    69878bfdfe1b730f802bfa6ad515efdef96aa43f

  • SHA256

    5c4676ef5bd6f6d10826944d9e51efadb58fbbb936ff5f10d7aa91235c35946d

  • SHA512

    7def65260ab6f04c0b4e3af4754e54d28bd6a289152692f047915b2cc9fb5f799ae47a605efe401f1e606b0c7f787be13b68ac1ec67ba88539a12d041c6d8f5f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    project2021blessinggoodgood2+me

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-no 74GW0942.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-no 74GW0942.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:484
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1048
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Drops file in Drivers directory
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:752

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/484-60-0x0000000001390000-0x0000000001391000-memory.dmp
      Filesize

      4KB

    • memory/484-62-0x00000000003F0000-0x00000000003F1000-memory.dmp
      Filesize

      4KB

    • memory/484-63-0x0000000000BC0000-0x0000000000BC9000-memory.dmp
      Filesize

      36KB

    • memory/484-64-0x000000007EF40000-0x000000007EF41000-memory.dmp
      Filesize

      4KB

    • memory/484-65-0x0000000005280000-0x00000000052FE000-memory.dmp
      Filesize

      504KB

    • memory/484-66-0x0000000001200000-0x0000000001249000-memory.dmp
      Filesize

      292KB

    • memory/752-67-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/752-68-0x000000000043763E-mapping.dmp
    • memory/752-69-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/752-71-0x0000000004A20000-0x0000000004A21000-memory.dmp
      Filesize

      4KB