Analysis

  • max time kernel
    106s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:48

General

  • Target

    GlobalOrder_T0028342005500.exe

  • Size

    500KB

  • MD5

    444061aa3f4503ed0e8f1ab80cc6ec92

  • SHA1

    3e7d516589952ccdbd265e434aa54a6025430628

  • SHA256

    d60f774507ea86cf6fb6caec5bb930bc86ad5a38c9d9f72d568230580f02c92a

  • SHA512

    5e1cae6bd190022cf2698064fd896299f86616976f96b93647423831bb6c8b3aa56e923c91d93d185a2169d350a0b87bb4de333b9959a9632a74d633d0ec47c4

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sesan.com.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    123456

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sesan.com.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    123456

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GlobalOrder_T0028342005500.exe
    "C:\Users\Admin\AppData\Local\Temp\GlobalOrder_T0028342005500.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\frhrzHe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4A19.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2316
    • C:\Users\Admin\AppData\Local\Temp\GlobalOrder_T0028342005500.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1884
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1472

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp4A19.tmp
      Filesize

      1KB

      MD5

      c6305e028c2d5b700f5b7380c261a516

      SHA1

      dbb5119d8d76a789385ce71486c6a6fe42633dd2

      SHA256

      acd8b715f8fc37aad07cbf8c2fe22599fdb50562fd789b7746f313665b17c9f4

      SHA512

      e77462dead1bcb8b5cdfce9932b8f0929fd6df8e58978fc2dbedd3851c7d6d73ef7c0abfc3bd42fe7de979ddbb97936a5341f4e858c6d504c51242badd8d8855

    • memory/1472-139-0x0000000000000000-mapping.dmp
    • memory/1496-130-0x0000000000E70000-0x0000000000EF6000-memory.dmp
      Filesize

      536KB

    • memory/1496-131-0x0000000006DF0000-0x0000000006E82000-memory.dmp
      Filesize

      584KB

    • memory/1496-132-0x0000000007310000-0x00000000073AC000-memory.dmp
      Filesize

      624KB

    • memory/1496-133-0x0000000008100000-0x00000000086A4000-memory.dmp
      Filesize

      5.6MB

    • memory/1496-134-0x0000000007420000-0x0000000007486000-memory.dmp
      Filesize

      408KB

    • memory/1884-137-0x0000000000000000-mapping.dmp
    • memory/1884-138-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/1884-140-0x00000000070A0000-0x00000000070F0000-memory.dmp
      Filesize

      320KB

    • memory/1884-141-0x0000000006CC0000-0x0000000006CCA000-memory.dmp
      Filesize

      40KB

    • memory/2316-135-0x0000000000000000-mapping.dmp