Analysis

  • max time kernel
    139s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    25-11-2021 16:40

General

  • Target

    Euro invoice.exe

  • Size

    496KB

  • MD5

    15f79ec8cfa1ad6c24767d4ca45aa4cd

  • SHA1

    3b48453cc5680c048880bb0c4f0f19f34fdf1da7

  • SHA256

    49d22404c910a5bd1b6e13d92bb411b826edfc42fd680cfaa90ffb23ecc3a195

  • SHA512

    47a0d71ee92b6b34c98a7ce908de5495e83eec21d08994beb267bea12e754235bbd666b5b96e074b1f8fa1457ed23bb02b97ee8c195225825d4a3aa83b129da8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vrlogistic.net
  • Port:
    587
  • Username:
    support25@vrlogistic.net
  • Password:
    support25!@#$

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\Euro invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Euro invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1140
    • 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:816

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/816-65-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/816-64-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/816-70-0x0000000004BA1000-0x0000000004BA2000-memory.dmp
    Filesize

    4KB

  • memory/816-69-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
    Filesize

    4KB

  • memory/816-67-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/816-61-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/816-63-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/816-62-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/816-66-0x00000000004375FE-mapping.dmp
  • memory/1140-55-0x0000000001080000-0x0000000001081000-memory.dmp
    Filesize

    4KB

  • memory/1140-57-0x0000000004E80000-0x0000000004E81000-memory.dmp
    Filesize

    4KB

  • memory/1140-60-0x0000000005100000-0x000000000516C000-memory.dmp
    Filesize

    432KB

  • memory/1140-59-0x0000000000A50000-0x0000000000A58000-memory.dmp
    Filesize

    32KB

  • memory/1140-58-0x0000000004E85000-0x0000000004E96000-memory.dmp
    Filesize

    68KB