Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1200a68386ae151…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 17:07:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9ff30f0b34c8fd8b16c436acbde99205 SHA-1: b31edaf54977ec48e702ad36dccabe49425257c7 SHA-256: b1200a68386ae15106f4b6b4394b27c59dd00d467cec1a9807df5a5ddeb09827
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 0.9980

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 http://netcdn.tw/app/479516143/minecraft-that-you-can-play-for-free-game-hack PDF link annotation
    • http://autoskola-scp.com/files/urbis-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/hack-roblox-names-and-passwords_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/robufree-club-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/atticus-129-roblox-hacked-image_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-wizard-life-galleons-hacks_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-free-robux-ad_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-use-cheat-engine-to-get-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-neon-blue-tie-roblox-promo-code_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/commands-for-free-admin-for-roblox_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
font_00_sfnt_off000031c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C7 22640 bytes
SHA-256: b26ec8eda21eaaf60d7ef6efb4aac6405b881f6d7e8ec46bc70d6af1544fbddc
font_01_sfnt_off0000645a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645A 18872 bytes
SHA-256: c14a64e1cd9767792e23c361a5442cbd2271d12f8fb26f1f3810dea2f6830d61

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