Malicious PDF — malware analysis report

Static analysis result for SHA-256 17df8bfa609ffcd8…

MALICIOUS

PDF

45.7 KB Created: 2021-05-30 13:55:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 8e9165e5a4c16267cff9239613921fae SHA-1: 0ddbbc24c6fed535f05424c63a7232cc6513340f SHA-256: 17df8bfa609ffcd8d26845b7cca8226c4f52a4be3459dc5d83e625bf76c4881c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, that masquerade as 'game hacks' or 'free generators' to entice users. The primary lure URL is https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-phone-game-hack. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or social engineering attack aimed at driving users to malicious sites, likely for further payload delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9580

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-minecraft-for-free-on-phone-game-hack In PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.cryptovision.com/wp-content/uploads/fsqm-files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000056d1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x56D1 25444 bytes
SHA-256: 661e31dbc887ae29f50b708590387008bf83abe0d7be72d9bf74190c1c3ecfa0
font_01_sfnt_off00009044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9044 18192 bytes
SHA-256: 90b6a34edb34d309cd556a6b23817db9766b775643cedc81c4ce7203f03c64d4