Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff7085a02550d491…

MALICIOUS

PDF

34.7 KB Created: 2021-06-21 12:36:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3a695ba1deed2b9cd34e5a4e93664c55 SHA-1: 8e0417538c738b0ba764d6ac664e36226bfbc613 SHA-256: ff7085a02550d491c50f887b5764780451efd55ceeb4f005a5c16b16bc163ad4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators for popular games like Roblox and Minecraft. The document body and heuristic firings confirm the intent to lure users to these malicious sites, likely for further exploitation or malware delivery. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-dyna-roblox-dinosaur-simulator-coddes-game-hack In PDF document text
    • http://d-cision.nl/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/hack-tower-battle-roblox_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/roblox-ninja-legends-cheat-engine_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-join-the-builders-club-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/boku-no-roblox-remastered-hack-script_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/roblox-free-robux-download-2021_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/earn-points-earn-free-robux-by-completing-simple-tasks_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-free-spins-hack-2021_GM406889139.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
font_00_sfnt_off00002eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAE 22348 bytes
SHA-256: 54c740dc3c8eecfd97c6e3d801670d88376b5e8cdd333705c22c028807e4582a
font_01_sfnt_off0000603f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603F 19796 bytes
SHA-256: d00009b237fcdcb93aa75d102093988e8d88baaa6d2fd00105c24531de522a4e

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