Analysis

  • max time kernel
    140s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    20-10-2021 14:05

General

  • Target

    g9XCQOMvwhPEV6L.exe

  • Size

    436KB

  • MD5

    272949acab6b71a4819f040bc4f0c5c4

  • SHA1

    ba714a50c8b67e5b951ab74ef5c201884ef223f0

  • SHA256

    2d7c5f6f54961f7bad156c7fd858c1718218fccc731ccd45f75f7180d03d921c

  • SHA512

    aca3035eb6a102beeb9497783a0828f4acfc1defefafc702b0b50bb2a7f74f89066b7f6847f4a0df8e41a24715e52955327ded4fd97d82aa45e0b2d581768cb5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.goldentravel.ec
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chinadusco@5555343

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Drops file in Drivers directory 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
  • 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\g9XCQOMvwhPEV6L.exe
    "C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe
      "C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:572

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/572-64-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/572-63-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/572-69-0x0000000004B71000-0x0000000004B72000-memory.dmp
    Filesize

    4KB

  • memory/572-68-0x0000000004B70000-0x0000000004B71000-memory.dmp
    Filesize

    4KB

  • memory/572-66-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/572-60-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/572-62-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/572-61-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/572-65-0x000000000043772E-mapping.dmp
  • memory/1304-54-0x00000000001F0000-0x00000000001F1000-memory.dmp
    Filesize

    4KB

  • memory/1304-56-0x0000000075321000-0x0000000075323000-memory.dmp
    Filesize

    8KB

  • memory/1304-59-0x00000000042A0000-0x00000000042F8000-memory.dmp
    Filesize

    352KB

  • memory/1304-58-0x00000000004D0000-0x00000000004D7000-memory.dmp
    Filesize

    28KB

  • memory/1304-57-0x0000000004D10000-0x0000000004D11000-memory.dmp
    Filesize

    4KB