Analysis

  • max time kernel
    144s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:43

General

  • Target

    urRoho98uAFcMyA.exe

  • Size

    869KB

  • MD5

    7300bcb49317a89d673ad030f5b94a64

  • SHA1

    b508bd5821133a2d6e08ae55e4e6822e79746b27

  • SHA256

    ec766638dbd645faad5115dab7ff18b9e2afb5f4a0da724ac945ae3e50815b06

  • SHA512

    b2f2c51fdcaafb049c005b7fd5ed2bd0eb40564668933931eb64d603c92fc108441396790aa039a9cfca01114e3c1ea0374e417cdc23ebe4fcdcc6b1f132ba13

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.avastragroup.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    *vVABUb9

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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\urRoho98uAFcMyA.exe
    "C:\Users\Admin\AppData\Local\Temp\urRoho98uAFcMyA.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Users\Admin\AppData\Local\Temp\urRoho98uAFcMyA.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2020

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/1160-54-0x0000000000130000-0x0000000000210000-memory.dmp
    Filesize

    896KB

  • memory/1160-55-0x00000000004C0000-0x00000000004CA000-memory.dmp
    Filesize

    40KB

  • memory/1160-56-0x0000000004D40000-0x0000000004DA6000-memory.dmp
    Filesize

    408KB

  • memory/1160-57-0x0000000004DE0000-0x0000000004E2C000-memory.dmp
    Filesize

    304KB

  • memory/2020-58-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-59-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-63-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-64-0x000000000044723E-mapping.dmp
  • memory/2020-66-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-68-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2020-69-0x0000000075581000-0x0000000075583000-memory.dmp
    Filesize

    8KB