Analysis

  • max time kernel
    75s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:21

General

  • Target

    Order.exe

  • Size

    733KB

  • MD5

    f98e4ca30b7509d7e58dc1f1c892bca3

  • SHA1

    ead5e654675beecf472895aaf781bea0337689ff

  • SHA256

    c1a5a50629d48e6259bd63ebc5e9d31d6b076b30edc1b3bd138e10fcc03a29c8

  • SHA512

    7a5312aa43dea2b5b167080d73c98a029a90677bce4289ea8c88d12523e113388596c7eeebde13b7d36b486997110eddeb7e7d30a2a974f8296da52b8e376742

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chosen@@@123

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chosen@@@123

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 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Order.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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4452
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QPcnNesmP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB2BB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4420
    • C:\Users\Admin\AppData\Local\Temp\Order.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1080

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Order.exe.log

    Filesize

    588B

    MD5

    fa63f48f58ed4dfb0c496c113f0926c7

    SHA1

    9d79155de350d586d815e7abf1c00696f4b22d3e

    SHA256

    9d670c5385c7a9ab57bf6790af6e13ce25637f05c96765b847b64f7a68a3c8db

    SHA512

    55a43eefd1592a4d821f539075b5db719c9ab86f360e357caf1a57a23971ce4c94a7afc61bdb35830df0fd474de340aa03e6396b5da8ec0a19d8a062ea07a66d

  • C:\Users\Admin\AppData\Local\Temp\tmpB2BB.tmp

    Filesize

    1KB

    MD5

    da35df82786d298a891eebb4f2d99db8

    SHA1

    9fd6198904a15f41d93445c5722296a5eddf08b2

    SHA256

    655b63a1abbee4821274adb760a4390909115c20fdd05e56d699469f96ea5daf

    SHA512

    91fa3998b8de06dc1b70c154aef8e3be182aa71c03c26ef70ab19819c731cf7372fc35cdd2a474350040383b417698f87b56f3dd743fe857c4aa6187a8e9eb55

  • memory/1080-133-0x0000000000000000-mapping.dmp

  • memory/1080-134-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1080-136-0x0000000074F30000-0x00000000754E1000-memory.dmp

    Filesize

    5.7MB

  • memory/4420-131-0x0000000000000000-mapping.dmp

  • memory/4452-130-0x0000000074F30000-0x00000000754E1000-memory.dmp

    Filesize

    5.7MB