Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb00b2b9d9b1e332…

MALICIOUS

PDF

45.6 KB Created: 2021-05-16 11:47:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 492ba5f9a040844d34e84737f1a98939 SHA-1: 51ffb08b2f557f054d7d8250ad33d4e452167c09 SHA-256: cb00b2b9d9b1e332dbea03efc117df8aaa7e9bfc8d7995c16146b52e2063cee4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The document presents a lure for a free game download, which is a common tactic for distributing malware. It contains multiple embedded URLs pointing to potentially malicious content. Furthermore, the document explicitly instructs the user to copy and paste content into a shell, indicating an attempt to trick the user into executing commands.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-xbox-360-free-download-code-game-hack PDF link annotation
    • http://pythonbikers.de/images/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/add-robux_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A9A 24508 bytes
SHA-256: 95cc775256d97d24c8c1f3d48d18cfabb24b4f855017b5d997d3582044c43168
font_01_sfnt_off00008291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8291 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C42 19400 bytes
SHA-256: 30b784ba3b356ec0b4997106bff5d55ef8f2e70b19d5a22bd2903de8139c4554

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