Analysis

  • max time kernel
    97s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    23-06-2022 14:35

General

  • Target

    948-60-0x00000000051D0000-0x000000000520C000-memory.exe

  • Size

    240KB

  • MD5

    ab2112c2bbf398efceae34d2731858f4

  • SHA1

    f9ed6b6ae619164ea3c83bc1ce97a49d9cc33515

  • SHA256

    18cabfab79744d74159ef9ef33818f5b4e7359285d5e150db4e1e09e2f70bfe3

  • SHA512

    37b128594cb820f7dfe3e2279507684b64640464fecc1124acd37451a6ffb30099eec155b77da8713c57ac006cc024fe6ec0037090d2e5d5b1f769831eec5420

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    qlRYaFn8

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\948-60-0x00000000051D0000-0x000000000520C000-memory.exe
    "C:\Users\Admin\AppData\Local\Temp\948-60-0x00000000051D0000-0x000000000520C000-memory.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:4280

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4280-130-0x0000000000AF0000-0x0000000000B2C000-memory.dmp
    Filesize

    240KB

  • memory/4280-131-0x0000000005A70000-0x0000000006014000-memory.dmp
    Filesize

    5.6MB

  • memory/4280-132-0x0000000005560000-0x00000000055F2000-memory.dmp
    Filesize

    584KB

  • memory/4280-133-0x00000000056F0000-0x000000000578C000-memory.dmp
    Filesize

    624KB

  • memory/4280-134-0x00000000063D0000-0x0000000006436000-memory.dmp
    Filesize

    408KB

  • memory/4280-135-0x0000000006640000-0x0000000006690000-memory.dmp
    Filesize

    320KB

  • memory/4280-136-0x0000000001290000-0x000000000129A000-memory.dmp
    Filesize

    40KB