Analysis

  • max time kernel
    120s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:59

General

  • Target

    Court order_pdf.exe

  • Size

    546KB

  • MD5

    da020d0c54734d21d96efd3b05cafc0b

  • SHA1

    1ef4a1601984ed3eeffcaa15ecaec7ded28f7ebd

  • SHA256

    0a8a4c3e09dd9ea5652a1388c395ed0707e6e2c370fa0fa288f71da425022464

  • SHA512

    233816b405f65db45ef67ddac66e16746d341ebd53c6ab289f5ef19ded128eb82631cf2f6a9593771a71bdf564a2c667b4088cba43524c480ce6ba6ad2c352b9

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.elittacop.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @eaSYuc8

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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.

  • 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
  • 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\Court order_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Court order_pdf.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\Court order_pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1072

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1072-57-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-58-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-60-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-63-0x0000000000446FCE-mapping.dmp
  • memory/1072-65-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-67-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1072-68-0x0000000075DB1000-0x0000000075DB3000-memory.dmp
    Filesize

    8KB

  • memory/2008-54-0x0000000001150000-0x00000000011DE000-memory.dmp
    Filesize

    568KB

  • memory/2008-55-0x0000000000320000-0x0000000000328000-memory.dmp
    Filesize

    32KB

  • memory/2008-56-0x0000000000DD0000-0x0000000000E24000-memory.dmp
    Filesize

    336KB