Analysis

  • max time kernel
    134s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:41

General

  • Target

    PO.exe

  • Size

    635KB

  • MD5

    55140ff87747a3ed721b053b3012c413

  • SHA1

    af976e3c1f3299f91fa210b663b3ab7cd3f2252f

  • SHA256

    7e6255b2167102b7df469de6cc873668440e156aba6fe6b3d00ab4e052ce1dce

  • SHA512

    04a3cd883e3bc1c032f3805612b67141e16614e4c2d3908cb01345ce049ac4dba4f0aedfabf2fa8afc997b06c2a1f7dff508a061743d0e8b8d3cdcef55ad4b46

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chinwendu123

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 WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\AppData\Local\Temp\PO.exe
      "C:\Users\Admin\AppData\Local\Temp\PO.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1328

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/1120-54-0x0000000000C10000-0x0000000000CB6000-memory.dmp
    Filesize

    664KB

  • memory/1120-55-0x00000000753B1000-0x00000000753B3000-memory.dmp
    Filesize

    8KB

  • memory/1120-56-0x0000000000520000-0x0000000000528000-memory.dmp
    Filesize

    32KB

  • memory/1120-57-0x0000000005030000-0x00000000050B6000-memory.dmp
    Filesize

    536KB

  • memory/1120-58-0x0000000005340000-0x000000000539C000-memory.dmp
    Filesize

    368KB

  • memory/1328-59-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1328-60-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1328-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1328-63-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1328-64-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1328-65-0x00000000004470BE-mapping.dmp
  • memory/1328-67-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1328-69-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB