Analysis

  • max time kernel
    129s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    18-10-2021 07:54

General

  • Target

    SWIFT MT103.exe

  • Size

    1.1MB

  • MD5

    7864fb0b03ee179f129ac268e9c1e6c5

  • SHA1

    b2c5fe1cdd6b50563d88d74ba4c2a5070401110f

  • SHA256

    4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01

  • SHA512

    63d48a3ca4a586a1c6d66eaa4b76b2648dc5a5d885175b7ed54d6aaf0137c81a63d4f3ccf059637c3d118f518d182747cf6dbd7f02489efb5c510555e9e45096

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.adityagroup.co
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Aditya!@#$%^

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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SWIFT MT103.exe
    "C:\Users\Admin\AppData\Local\Temp\SWIFT MT103.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bWreqUBBeQL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA5C1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1324
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      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:908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA5C1.tmp

    MD5

    3a79662bfc32761537de0b1a7b0727c0

    SHA1

    1be505ee7bcf6c12ef24dc9474d1c031e5be5cbe

    SHA256

    d6955b450a0d816644cfda2c6ebfc6273a2ca19f0eff382034f7d5a8677615d5

    SHA512

    158adb4bb03b8a210192069083215921fa2e39032c1c0fee629f1cadcc25e93030604802db9b9ed9b56330816bc64622399f5273edabb41140be392dc5e9d221

  • memory/908-66-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/908-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/908-71-0x0000000004C31000-0x0000000004C32000-memory.dmp

    Filesize

    4KB

  • memory/908-70-0x0000000004C30000-0x0000000004C31000-memory.dmp

    Filesize

    4KB

  • memory/908-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/908-68-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/908-67-0x00000000004376CE-mapping.dmp

  • memory/908-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/908-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1324-60-0x0000000000000000-mapping.dmp

  • memory/2032-59-0x00000000005B0000-0x00000000005E8000-memory.dmp

    Filesize

    224KB

  • memory/2032-55-0x0000000075871000-0x0000000075873000-memory.dmp

    Filesize

    8KB

  • memory/2032-53-0x0000000001310000-0x0000000001311000-memory.dmp

    Filesize

    4KB

  • memory/2032-56-0x0000000004D10000-0x0000000004D11000-memory.dmp

    Filesize

    4KB

  • memory/2032-58-0x0000000005F40000-0x0000000005FBF000-memory.dmp

    Filesize

    508KB

  • memory/2032-57-0x00000000002E0000-0x00000000002EE000-memory.dmp

    Filesize

    56KB