Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e248715e0507306…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 09:27:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 87090295812d2ac385503cf2fb1dceb6 SHA-1: 70f7e6ea1ab50b8977791067301c04bd6f138d6c SHA-256: 6e248715e050730674f576fc7e3a16ee6ee8e1b9b1a585d5d41d9e1370192698
102 Risk Score

Malware Insights

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

The PDF document contains a high-severity heuristic firing for a 'free generator / game hack' lure, directing users to a suspicious URL. The document body, though corrupted, contains references to similar lures and URLs, reinforcing the malicious intent. This suggests the file is designed to trick users into visiting potentially harmful websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/479516143/mcpe-hacks-game-hack PDF link annotation
    • https://razredna-nastava.net/files/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://razredna-nastava.net/files/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/pokemon-go-free-90-iv_GM1094591345.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://razredna-nastava.net/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://razredna-nastava.net/files/tiktok-free-99_GM835599320.pdfIn PDF document text
    • https://razredna-nastava.net/files/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • https://razredna-nastava.net/files/minecraft-free-unblocked_GM479516143.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_off0000518a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x518A 24852 bytes
SHA-256: cbee60f00d6f289e5f0ec5bd937714427bbf5faea2af1c6e82a8253d5f8d69ba
font_01_sfnt_off00008a6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6E 17688 bytes
SHA-256: d1508d2be7a9f8c5142932648003dcb14e924db67a920ae6fa1417f4aaab4b4b

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