Analysis

  • max time kernel
    151s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:28

General

  • Target

    hgytgfv.exe

  • Size

    604KB

  • MD5

    d7cc88b0629075b10a0eb128920c1404

  • SHA1

    321692b3944b4659b599beffe7a38c0e12d75023

  • SHA256

    d8803b93c59638ead5ee87768a63e35a81beed58f48b39d2d928cbc36621be1a

  • SHA512

    5ae6da98f8d9b1b80034954df0abfda6024e203f6f8bedfa0c8913a84c2e42c86cd31cae0eb2953c49adac247b79206fa98baef3acdbf685391c48b1a90e2b52

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mankind123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hgytgfv.exe
    "C:\Users\Admin\AppData\Local\Temp\hgytgfv.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Local\Temp\hgytgfv.exe
      "C:\Users\Admin\AppData\Local\Temp\hgytgfv.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1540

Network

MITRE ATT&CK Matrix ATT&CK v6

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/1268-54-0x0000000000EC0000-0x0000000000F5E000-memory.dmp
    Filesize

    632KB

  • memory/1268-55-0x0000000075B71000-0x0000000075B73000-memory.dmp
    Filesize

    8KB

  • memory/1268-56-0x0000000000370000-0x0000000000382000-memory.dmp
    Filesize

    72KB

  • memory/1268-57-0x0000000004800000-0x0000000004874000-memory.dmp
    Filesize

    464KB

  • memory/1268-58-0x0000000000BB0000-0x0000000000C0A000-memory.dmp
    Filesize

    360KB

  • memory/1540-59-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1540-60-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1540-62-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1540-63-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1540-64-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1540-65-0x000000000045465E-mapping.dmp
  • memory/1540-67-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1540-69-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB