Analysis

  • max time kernel
    149s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:39

General

  • Target

    Proforma Invoice.exe

  • Size

    488KB

  • MD5

    5e60ef56b469a00033010400dfd0b8a8

  • SHA1

    32995e5ad69e62e01512bbc90c163f1c7f1a8805

  • SHA256

    7da5b2a2701aa912c1e3b5d76bc926d9a446e6fcbd965bf2781d4653cc453d47

  • SHA512

    de95f417bb3fca636c52f12740324d57e6831a3bb94672b0cfe508db85eff2f2be6564fbafd76aa91809dce612bbb78f110f394ac859f44228838fa208eeb6de

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.rajapindah.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #r4j#citeureup#13

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2580
    • 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:3576
      • 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:4624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 1532
        3⤵
        • Program crash
        PID:1732
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3576 -ip 3576
    1⤵
      PID:5112

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2580-130-0x00000000008E0000-0x0000000000960000-memory.dmp

      Filesize

      512KB

    • memory/2580-131-0x0000000005A00000-0x0000000005FA4000-memory.dmp

      Filesize

      5.6MB

    • memory/2580-132-0x0000000005320000-0x00000000053B2000-memory.dmp

      Filesize

      584KB

    • memory/2580-133-0x00000000052F0000-0x00000000052FA000-memory.dmp

      Filesize

      40KB

    • memory/2580-134-0x0000000008CC0000-0x0000000008D5C000-memory.dmp

      Filesize

      624KB

    • memory/3576-135-0x0000000000000000-mapping.dmp

    • memory/3576-136-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/3576-137-0x0000000006220000-0x0000000006286000-memory.dmp

      Filesize

      408KB

    • memory/3576-139-0x00000000068B0000-0x0000000006900000-memory.dmp

      Filesize

      320KB

    • memory/4624-138-0x0000000000000000-mapping.dmp