Analysis

  • max time kernel
    144s
  • max time network
    213s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:33

General

  • Target

    payment receipt.exe

  • Size

    900KB

  • MD5

    7fdd090c8b9fe2544b1fa4dc4c96bc11

  • SHA1

    3147873d755d9e30a5bd61ab132942a79558f43d

  • SHA256

    8e25b6df9458100758e0656d3529e0edf64e4bab339e7be71145304477ed9bbf

  • SHA512

    88d448db785836f88866de11101d6bbd568e73eb1befc85c7492340c81629b2eb00ee867d235c8f73568ee620a90376cb473be0d938bd72e31f625a0e81ce523

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.dianaglobalmandiri.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Batam2019

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
  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payment receipt.exe
    "C:\Users\Admin\AppData\Local\Temp\payment receipt.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1476
      • 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:4732
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 1572
          3⤵
          • Program crash
          PID:2884
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1476 -ip 1476
      1⤵
        PID:2152

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Modify Registry

      1
      T1112

      Collection

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1476-135-0x0000000000000000-mapping.dmp
      • memory/1476-136-0x0000000000400000-0x0000000000452000-memory.dmp
        Filesize

        328KB

      • memory/1476-137-0x0000000005740000-0x00000000057A6000-memory.dmp
        Filesize

        408KB

      • memory/1476-139-0x00000000066F0000-0x0000000006740000-memory.dmp
        Filesize

        320KB

      • memory/4400-130-0x0000000000550000-0x0000000000638000-memory.dmp
        Filesize

        928KB

      • memory/4400-131-0x0000000005490000-0x0000000005A34000-memory.dmp
        Filesize

        5.6MB

      • memory/4400-132-0x0000000004FE0000-0x0000000005072000-memory.dmp
        Filesize

        584KB

      • memory/4400-133-0x0000000005190000-0x000000000519A000-memory.dmp
        Filesize

        40KB

      • memory/4400-134-0x0000000008F00000-0x0000000008F9C000-memory.dmp
        Filesize

        624KB

      • memory/4436-140-0x0000000000000000-mapping.dmp
      • memory/4732-138-0x0000000000000000-mapping.dmp