Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:00

General

  • Target

    PURCHASE LIST.exe

  • Size

    509KB

  • MD5

    84bd92a1862e1c85ce69e671f74fa6e1

  • SHA1

    7fa8144f716efef6b201b12672aa21882f6e1428

  • SHA256

    07d6953a68436385a5c78086ae9cf68fb5f5e44adeb6333f84aaa0ffd94a0ed5

  • SHA512

    ae488f9a861febe9fd96b9b44e8faf91cf8dc2c2a49f32e400a7b6e58a68a46a75a640a64985ba47818af21e7687be43676616ca7d788a71bb4f80cd5c33da04

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mentorpublishing.co.ke
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Sam072493

Signatures

  • AgentTesla

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

  • SnakeBOT

    SnakeBOT is a heavily obfuscated .NET downloader.

  • AgentTesla Payload 1 IoCs
  • Contains SnakeBOT related strings 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4756
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4168
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        3⤵
        • Modifies registry key
        PID:4888
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4168 -s 1496
        3⤵
        • Program crash
        PID:5012
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4168 -ip 4168
    1⤵
      PID:3648

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4168-135-0x0000000000000000-mapping.dmp

    • memory/4168-136-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB

    • memory/4168-137-0x00000000061B0000-0x0000000006216000-memory.dmp

      Filesize

      408KB

    • memory/4168-139-0x0000000006720000-0x0000000006770000-memory.dmp

      Filesize

      320KB

    • memory/4756-130-0x00000000007E0000-0x0000000000868000-memory.dmp

      Filesize

      544KB

    • memory/4756-131-0x0000000007BF0000-0x0000000008194000-memory.dmp

      Filesize

      5.6MB

    • memory/4756-132-0x00000000076E0000-0x0000000007772000-memory.dmp

      Filesize

      584KB

    • memory/4756-133-0x0000000007890000-0x000000000789A000-memory.dmp

      Filesize

      40KB

    • memory/4756-134-0x000000000B410000-0x000000000B4AC000-memory.dmp

      Filesize

      624KB

    • memory/4888-138-0x0000000000000000-mapping.dmp