Overview

overview

10

Static

static

Invoices.scr

windows7_x64

10

Invoices.scr

windows10-2004_x64

10

Payment Copy.scr

windows7_x64

10

Payment Copy.scr

windows10-2004_x64

10

Pictures.scr

windows7_x64

10

Pictures.scr

windows10-2004_x64

10

Analysis

  • max time kernel
    115s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:18

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General

  • Target

    Pictures.scr

  • Size

    614KB

  • MD5

    0548042de08d966daf12706ecef02860

  • SHA1

    2551f1cf8b224368ebbfaa02e39ad360c9693658

  • SHA256

    1e7474f09fbb2601bdc6f5e77ec90a9db99115e8392ba1629349f9b59f54d272

  • SHA512

    e0c1f998eb363454bd11dae8376b77ed373004078f61e0f8bf81baae01a5d08608290ead31236506aceacba60fa51456c49ac702bceea93f2cf14edd73931fb7

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    z123456789ok

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Pictures.scr
    "C:\Users\Admin\AppData\Local\Temp\Pictures.scr" /S
    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:4288
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hydlmGyJywexkm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD47.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4036
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:4964
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:3760

    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

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpAD47.tmp
      Filesize

      1KB

      MD5

      7f980b8a5873762fa30d9125157ea784

      SHA1

      c9fb0a7667532c0625763ed7e2c4deeb469e9669

      SHA256

      ed21a104bbb317ba08ce45ecdafb88be6e9db724c6f69c94412dde058f06eb45

      SHA512

      799e67022fa1996b2fb562ad3ada99e1d5db7069e0865dc8c4033092bb8b051c1ffee21b542372f9b764ff32567b3337e1cfbeebbef028cf4a1d094c4753f615

      Download Submit
    • memory/3760-143-0x00000000067B0000-0x0000000006800000-memory.dmp
      Filesize

      320KB

      Download
    • memory/3760-142-0x0000000000400000-0x000000000045A000-memory.dmp
      Filesize

      360KB

      Download
    • memory/3760-141-0x0000000000000000-mapping.dmp
      Download
    • memory/4036-138-0x0000000000000000-mapping.dmp
      Download
    • memory/4288-133-0x00000000050E0000-0x0000000005172000-memory.dmp
      Filesize

      584KB

      Download
    • memory/4288-136-0x0000000005400000-0x0000000005466000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4288-137-0x0000000000EE0000-0x0000000000F46000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4288-135-0x0000000005200000-0x0000000005256000-memory.dmp
      Filesize

      344KB

      Download
    • memory/4288-134-0x0000000005020000-0x000000000502A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/4288-130-0x00000000005F0000-0x000000000068E000-memory.dmp
      Filesize

      632KB

      Download
    • memory/4288-132-0x0000000005750000-0x0000000005CF4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/4288-131-0x0000000005040000-0x00000000050DC000-memory.dmp
      Filesize

      624KB

      Download
    • memory/4964-140-0x0000000000000000-mapping.dmp
      Download