Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2023 01:09

General

  • Target

    Scan_20231130_085902_pdf .exe

  • Size

    827KB

  • MD5

    5388a9eda1698bab204e57054a0df83e

  • SHA1

    9319e5125e5274a4cd75b2e239f7167da01c9a9e

  • SHA256

    ecfe6f56c220473c0f1730960e907f103e893c3778155d3f675ebbce4621b61a

  • SHA512

    a89586e40461d913a6bad7e3499dc7c441d9db465bb331c458e02884d24ee862234398de8006bbe374e766ba0d96d970ff467c6a1bc1b8bee933547c543f2bb4

  • SSDEEP

    12288:wg0SHdr/2DzVbI421wLFtA+yG0+G3Lc1N9FLRlwR:fX92zlIx1WtArG0CRF

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mailbuilderbuilder.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Alluminio.1

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect PureLogs payload 1 IoCs
  • PureLogs

    PureLogs is an infostealer written in C#.

  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan_20231130_085902_pdf .exe
    "C:\Users\Admin\AppData\Local\Temp\Scan_20231130_085902_pdf .exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3848
    • C:\Users\Admin\AppData\Local\Temp\Scan_20231130_085902_pdf .exe
      "C:\Users\Admin\AppData\Local\Temp\Scan_20231130_085902_pdf .exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Scan_20231130_085902_pdf .exe.log

    Filesize

    1KB

    MD5

    c3941d9fa38f1717d5cecd7a2ca71667

    SHA1

    33b5362675383b58b4166ed9f9a61e5aa6768d2e

    SHA256

    f1ed6ff1cd3df219061e32df1c75d6f48de6484cf50e5ea7d86cd8bcfcb93256

    SHA512

    98f103ef97d32bf8c0566a6f6da5cf8d58d18f698c1b3e5bd0be0ea8462f5fe54c2e5e6b5188f2b7d8f70082ffd6745b1f7f6cab95af474e2b7eaed50a9d9c45

  • memory/1536-16-0x0000000005450000-0x00000000054B6000-memory.dmp

    Filesize

    408KB

  • memory/1536-15-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/1536-22-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/1536-21-0x0000000074B90000-0x0000000075340000-memory.dmp

    Filesize

    7.7MB

  • memory/1536-14-0x0000000074B90000-0x0000000075340000-memory.dmp

    Filesize

    7.7MB

  • memory/1536-20-0x0000000006C60000-0x0000000006C6A000-memory.dmp

    Filesize

    40KB

  • memory/1536-19-0x0000000006CC0000-0x0000000006D52000-memory.dmp

    Filesize

    584KB

  • memory/1536-18-0x0000000006B80000-0x0000000006C1C000-memory.dmp

    Filesize

    624KB

  • memory/1536-17-0x0000000006A90000-0x0000000006AE0000-memory.dmp

    Filesize

    320KB

  • memory/1536-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3848-7-0x0000000074B90000-0x0000000075340000-memory.dmp

    Filesize

    7.7MB

  • memory/3848-5-0x0000000005C80000-0x0000000005CC0000-memory.dmp

    Filesize

    256KB

  • memory/3848-4-0x0000000005C20000-0x0000000005C60000-memory.dmp

    Filesize

    256KB

  • memory/3848-3-0x0000000005B50000-0x0000000005BA8000-memory.dmp

    Filesize

    352KB

  • memory/3848-0-0x0000000000730000-0x0000000000804000-memory.dmp

    Filesize

    848KB

  • memory/3848-9-0x0000000006300000-0x00000000068A4000-memory.dmp

    Filesize

    5.6MB

  • memory/3848-8-0x00000000051C0000-0x00000000051D0000-memory.dmp

    Filesize

    64KB

  • memory/3848-2-0x00000000051C0000-0x00000000051D0000-memory.dmp

    Filesize

    64KB

  • memory/3848-6-0x0000000005CC0000-0x0000000005D0C000-memory.dmp

    Filesize

    304KB

  • memory/3848-13-0x0000000074B90000-0x0000000075340000-memory.dmp

    Filesize

    7.7MB

  • memory/3848-1-0x0000000074B90000-0x0000000075340000-memory.dmp

    Filesize

    7.7MB