Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb601b1876f9161…

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 08:57:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0d7106223acc03626f853e31038e9f87 SHA-1: 28f0e1ee99fda6819a219977a6b2c97e0660328e SHA-256: 8cb601b1876f9161424ede9b89884b0d8e9318ba6d980bb7d76335517d74c1b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a heuristic indicating it links to a 'free generator / game hack' redirector, specifically mentioning 'how-to-get-free-spins-on-coin-master-game-hack'. This suggests a social engineering lure to trick users into visiting a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/406889139/how-to-get-free-spins-on-coin-master-game-hack PDF link annotation
    • http://perpus.ar-rum.ac.id//repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/instant-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/tryrbx-site-free-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fe5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE5 31380 bytes
SHA-256: 33c0db3b742dbd9ce3e2d00a19b1651472ac5791c81716846a8890220b7c4265
font_01_sfnt_off00009186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9186 18052 bytes
SHA-256: ea84a6236c2a6e621998df031dd6ced14717eafc49be4f8ccfac8b30b37a9d36

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