Overview

overview

10

Static

static

purchase order.exe

windows7_x64

10

purchase order.exe

windows10_x64

10

Analysis

  • max time kernel
    133s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    07-07-2020 09:51

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General

  • Target

    purchase order.exe

  • Size

    482KB

  • MD5

    cc8dd999e2986f15641dfad4362cf2a7

  • SHA1

    abeb848ddcfba06a03ba90f4c55e28c56e47494c

  • SHA256

    b6eecf6385766748acdbd8b0b350d9344f775495a0ca62a1dcca578d2b6100ca

  • SHA512

    e43349ee45e8bed299a1cdbd0485f454f3c2dcc4f795e788541dc47860dda859584d34baef4306f4140783f9f39b6e6cb6f42da47e99428168511a0d59c147c0

Score
10/10
agentteslaevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.pierreinsurancebrokers.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    advisor@1234

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.pierreinsurancebrokers.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    advisor@1234

Signatures

  • AgentTesla

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

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

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

  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3892
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PZDaFZwtnXm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B3A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1668
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
      2⤵
        PID:2424
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2064

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    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

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3B3A.tmp
      MD5

      d602f45bec11d0993fc42b17663ec27c

      SHA1

      80f42b2467a351eb7d68225c55b4f97fca1026a1

      SHA256

      35546b66d3fb8f369f4e70e585d9c399dfba8cfe7cb42f24fe001e41a0ad5da2

      SHA512

      fffd1829debf2e1ea8b5b747b888166c7ae9382b4ff0214c23d76dd9bdab546aefc9f5a14455aa93c39573964971e5845a548ef418b22903486a0ed29fe9daa8

      Download Submit
    • memory/1668-0-0x0000000000000000-mapping.dmp
      Download
    • memory/2064-2-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

      Download
    • memory/2064-3-0x0000000000446C5E-mapping.dmp
      Download