Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2023 17:31

General

  • Target

    ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7.exe

  • Size

    1007KB

  • MD5

    81e322ffa4f08ef1ce49fc1401f523d6

  • SHA1

    aff846fdab534596a2b79d7d4b37813e25b9055f

  • SHA256

    ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7

  • SHA512

    529f6be71dac266ad62149434591e58892df222c822151bd1afd99d4fd27cc7f51f7b71b340a2408ac63029accf63d4b550167bbbb4d941df267750aed792507

  • SSDEEP

    12288:Kr9NAc2ZJGgcAGBUS/3OCvY43AZ8LjY4D4DLi/aDgOdcGrZdD:K/MG+Y3ZvRAyLjY4D4DLcGrZdD

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mailbuilderbuilder.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Alluminio.1

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7.exe
    "C:\Users\Admin\AppData\Local\Temp\ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7.exe
      C:\Users\Admin\AppData\Local\Temp\ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ca340328a09ac92cb4560a3ae9b479d314c5aa1eb551e38bf138034cd41abce7.exe.log

    Filesize

    1KB

    MD5

    c3941d9fa38f1717d5cecd7a2ca71667

    SHA1

    33b5362675383b58b4166ed9f9a61e5aa6768d2e

    SHA256

    f1ed6ff1cd3df219061e32df1c75d6f48de6484cf50e5ea7d86cd8bcfcb93256

    SHA512

    98f103ef97d32bf8c0566a6f6da5cf8d58d18f698c1b3e5bd0be0ea8462f5fe54c2e5e6b5188f2b7d8f70082ffd6745b1f7f6cab95af474e2b7eaed50a9d9c45

  • memory/1556-19-0x00000000069E0000-0x0000000006A30000-memory.dmp

    Filesize

    320KB

  • memory/1556-18-0x0000000005380000-0x00000000053E6000-memory.dmp

    Filesize

    408KB

  • memory/1556-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1556-23-0x0000000074C30000-0x00000000753E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1556-22-0x0000000006BA0000-0x0000000006BAA000-memory.dmp

    Filesize

    40KB

  • memory/1556-21-0x0000000006C10000-0x0000000006CA2000-memory.dmp

    Filesize

    584KB

  • memory/1556-20-0x0000000006AD0000-0x0000000006B6C000-memory.dmp

    Filesize

    624KB

  • memory/1556-17-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/1556-15-0x0000000074C30000-0x00000000753E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1556-24-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2016-8-0x0000000005680000-0x00000000056CC000-memory.dmp

    Filesize

    304KB

  • memory/2016-1-0x0000000000060000-0x0000000000162000-memory.dmp

    Filesize

    1.0MB

  • memory/2016-10-0x0000000004B10000-0x0000000004B20000-memory.dmp

    Filesize

    64KB

  • memory/2016-9-0x0000000074C30000-0x00000000753E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2016-16-0x0000000074C30000-0x00000000753E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2016-3-0x0000000004AF0000-0x0000000004AFA000-memory.dmp

    Filesize

    40KB

  • memory/2016-2-0x0000000004B10000-0x0000000004B20000-memory.dmp

    Filesize

    64KB

  • memory/2016-6-0x00000000055D0000-0x0000000005610000-memory.dmp

    Filesize

    256KB

  • memory/2016-7-0x0000000005640000-0x0000000005680000-memory.dmp

    Filesize

    256KB

  • memory/2016-0-0x0000000074C30000-0x00000000753E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2016-5-0x0000000005560000-0x00000000055B8000-memory.dmp

    Filesize

    352KB

  • memory/2016-4-0x0000000004B50000-0x0000000004B5A000-memory.dmp

    Filesize

    40KB

  • memory/2016-11-0x0000000005CB0000-0x0000000006254000-memory.dmp

    Filesize

    5.6MB