Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a3aa814dba8992f…

MALICIOUS

PDF

48.8 KB Created: 2021-06-03 04:15:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8c7adac20062c30203295a3f36444d4f SHA-1: 4c2db97cf5e24f7464b01df21ee058ee17a87c4e SHA-256: 2a3aa814dba8992f8daba114653df85c6fed380ee2245558a6a021230737ec83
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.online/app/431946152/microsoft-roblox-game-hack PDF link annotation
    • https://www.punnitohana.com/uploaded_files/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/meepcity-hacks-for-music-with-out-robux_GM431946152.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://www.punnitohana.com/uploaded_files/userfiles/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005334.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5334 26808 bytes
SHA-256: d319b50a4fae6d2da48ed3f0e9ad2513aebbb0f91be68299097dc995810b1793
font_01_sfnt_off00008fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB0 3656 bytes
SHA-256: 63a179d8a9645bea05c6d53b1776faf4e4a7281930de6cf484e639846bec2e20
font_02_sfnt_off00009c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C6A 18204 bytes
SHA-256: 2b7eeff572d04ab457d9e2a35520a79c61ee30861b9713b02bf411d46f2ac039

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