Analysis

  • max time kernel
    138s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    27-07-2021 23:54

General

  • Target

    Procurement Quotation Request From ALVA TRADERS BY ROYAL Re PR#545 3_pdf.exe

  • Size

    758KB

  • MD5

    bbe8f3c73274a97d91e8b9ea33c23f5f

  • SHA1

    f2a96b4df791397607fda9c32cafa3f9c25ca59d

  • SHA256

    f8858f341270ce6e44c3633322716a1f7ec2c691a191218bdfbda60adcc918b2

  • SHA512

    98e58c395bbf10763cddc1fe519a1d49ce049a8b8246566f5aed9328061eff14858bf74b274b5e61ef9aa8fa5d4035f65e0fa645bebd93712b50787f080aaf57

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtpout.secureserver.net
  • Port:
    587
  • Username:
    sales1@ashtavinayaka.com
  • Password:
    123456789

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Procurement Quotation Request From ALVA TRADERS BY ROYAL Re PR#545 3_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Procurement Quotation Request From ALVA TRADERS BY ROYAL Re PR#545 3_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VtzQIU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF67F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:760
    • C:\Users\Admin\AppData\Local\Temp\Procurement Quotation Request From ALVA TRADERS BY ROYAL Re PR#545 3_pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1476

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF67F.tmp
    MD5

    e42205637c05012bd7f2bb07a4dad470

    SHA1

    7a34cc7f92c580d70e211d157b4a929495c03e83

    SHA256

    699ba05bf9114ee79b8bc3756641452fd1e57416f9ac2d2a0e4c3065c09028a3

    SHA512

    96289b9c11ec5440676c499246321972444093fa6eb1f0ffd77b6b031e03a6a8b04f41d9643239393c0fd3825d412ded15a497ce47a435b5cdf9780b08e8eab1

  • memory/684-60-0x0000000000830000-0x0000000000831000-memory.dmp
    Filesize

    4KB

  • memory/684-62-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
    Filesize

    4KB

  • memory/684-63-0x0000000000380000-0x0000000000382000-memory.dmp
    Filesize

    8KB

  • memory/684-64-0x0000000005480000-0x000000000553D000-memory.dmp
    Filesize

    756KB

  • memory/684-65-0x00000000058A0000-0x000000000591A000-memory.dmp
    Filesize

    488KB

  • memory/760-66-0x0000000000000000-mapping.dmp
  • memory/1476-68-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1476-69-0x000000000043761E-mapping.dmp
  • memory/1476-70-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1476-72-0x0000000004AE0000-0x0000000004AE1000-memory.dmp
    Filesize

    4KB

  • memory/1476-73-0x0000000004AE1000-0x0000000004AE2000-memory.dmp
    Filesize

    4KB