Analysis

  • max time kernel
    137s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    21-10-2021 13:52

General

  • Target

    PAYMENT INSTRUCTIONS COPY.exe

  • Size

    508KB

  • MD5

    0b5beef801a105065d60c914ddfe9d35

  • SHA1

    65b5d01bd6a75c690ef1b3912dfd964e7d220474

  • SHA256

    1496e0af114dcc7b8a582a6640cd662e03682597021c5443b713d238093e8097

  • SHA512

    3f4b8718bddba82e2d2c0791d63980e54b348af1e0e7eedea1fde66308db093c24c56445586789b195ce2691152969403242b5b26badec300fa27c358d6c2a7e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    sg2plcpnl0023.prod.sin2.secureserver.net
  • Port:
    587
  • Username:
    nbsupports@seshsupports.com
  • Password:
    User@40378

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT INSTRUCTIONS COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT INSTRUCTIONS COPY.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1728
    • 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
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1408

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1408-65-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1408-64-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1408-70-0x00000000048A1000-0x00000000048A2000-memory.dmp
    Filesize

    4KB

  • memory/1408-69-0x00000000048A0000-0x00000000048A1000-memory.dmp
    Filesize

    4KB

  • memory/1408-67-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1408-61-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1408-63-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1408-62-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1408-66-0x000000000043760E-mapping.dmp
  • memory/1728-55-0x0000000000F40000-0x0000000000F41000-memory.dmp
    Filesize

    4KB

  • memory/1728-57-0x0000000075F41000-0x0000000075F43000-memory.dmp
    Filesize

    8KB

  • memory/1728-60-0x0000000004B60000-0x0000000004BB8000-memory.dmp
    Filesize

    352KB

  • memory/1728-59-0x00000000006B0000-0x00000000006B7000-memory.dmp
    Filesize

    28KB

  • memory/1728-58-0x0000000000F00000-0x0000000000F01000-memory.dmp
    Filesize

    4KB