Overview

overview

10

Static

static

9

Our compan...df.exe

windows7_x64

10

Our compan...df.exe

windows10-2004_x64

10

Purchase O...df.exe

windows7_x64

10

Purchase O...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:09

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General

  • Target

    Purchase Order~pdf.exe

  • Size

    689KB

  • MD5

    22c37e22bf539c843de4ccc764924f33

  • SHA1

    d557a14aca121b534854bba8b7357bfd91d042c4

  • SHA256

    094f6a9977aca85ca844fdab18035108dda8907b5c7b90416653a573e4e127b7

  • SHA512

    11250880efd045016bf7c7fc74273e7b536ffae455da31d3137734c39cc81f7151dcf3a20ce9a1b8096949e28c88d7c646b25f524ce9d2ad9744ec48342abef1

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mapi.diplemailsrvr.com
  • Port:
    587
  • Username:
    narayana@synpurelabs.com
  • Password:
    Banachi@1974

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mapi.diplemailsrvr.com
  • Port:
    587
  • Username:
    narayana@synpurelabs.com
  • Password:
    Banachi@1974

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Disables RegEdit via registry modification
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • 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
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order~pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order~pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3220
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sQJHHoOl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB5E7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4860
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order~pdf.exe
      "{path}"
      2⤵
        PID:4712
      • C:\Users\Admin\AppData\Local\Temp\Purchase Order~pdf.exe
        "{path}"
        2⤵
          PID:4748
        • C:\Users\Admin\AppData\Local\Temp\Purchase Order~pdf.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          • outlook_win_path
          PID:4696
          • C:\Windows\SysWOW64\REG.exe
            REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
            3⤵
            • Modifies registry key
            PID:4940
          • C:\Windows\SysWOW64\netsh.exe
            "netsh" wlan show profile
            3⤵
              PID:4916

        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

        Modify Registry

        1
        T1112

        Credential Access

        Credentials in Files

        3
        T1081

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Lateral Movement

        Collection

        Data from Local System

        3
        T1005

        Email Collection

        1
        T1114

        Exfiltration

        Command and Control

        Impact

        Replay Monitor

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        Downloads

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

          496B

          MD5

          cb76b18ebed3a9f05a14aed43d35fba6

          SHA1

          836a4b4e351846fca08b84149cb734cb59b8c0d6

          SHA256

          8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

          SHA512

          7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

          Download Submit
        • C:\Users\Admin\AppData\Local\Temp\tmpB5E7.tmp
          Filesize

          1KB

          MD5

          5951dfcf8ea0aa5e28794ff2a88530df

          SHA1

          00f19eb84660e92f7b513a9ca280008fe89543f8

          SHA256

          c5fa2afafd5852a431e8ec70eb3535ae9674442626f6694099a6af6731b7ed1c

          SHA512

          59ecad434e7b4bf5f4c10d657aae177e5cc58266f6fc7f0578bbc12c2818951eba0f02cdd91d98a6c99c45d32ccdb1ee7e8d5c4d31390bb1bd7331856c7615c7

          Download Submit
        • memory/3220-130-0x0000000074930000-0x0000000074EE1000-memory.dmp
          Filesize

          5.7MB

          Download
        • memory/4696-135-0x0000000000000000-mapping.dmp
          Download
        • memory/4696-136-0x0000000000400000-0x0000000000450000-memory.dmp
          Filesize

          320KB

          Download
        • memory/4696-138-0x0000000074930000-0x0000000074EE1000-memory.dmp
          Filesize

          5.7MB

          Download
        • memory/4712-133-0x0000000000000000-mapping.dmp
          Download
        • memory/4748-134-0x0000000000000000-mapping.dmp
          Download
        • memory/4860-131-0x0000000000000000-mapping.dmp
          Download
        • memory/4916-140-0x0000000000000000-mapping.dmp
          Download
        • memory/4940-139-0x0000000000000000-mapping.dmp
          Download