Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e663c4ca3d1c0f5…

MALICIOUS

PDF

42.6 KB Created: 2021-05-10 15:02:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d64487eab2b2d8364d03d22ee6cc35a2 SHA-1: a52d6b6a51e0dfaccd36a94a8bce4b5c9b9f865f SHA-256: 8e663c4ca3d1c0f559d6e35e38dfcc69349c752110bd97b957775196900e1211
82 Risk Score

Malware Insights

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

The PDF contains multiple external links and a prominent lure for a game hack tool, indicating a social engineering attempt to trick users into downloading potentially malicious software. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the document body and heuristics point to a deceptive download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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.xyz/app/406889139/coin-master-hack-tool-v1-9-download-game-hack PDF link annotation
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-games-free_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-wurst_GM479516143.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-sued_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • http://elearning.manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-pet-snacks-coin-master_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
stream_003_off00004a46.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A46 25104 bytes
SHA-256: 3dd1777461ee05d93edc032824c932dc9b6e73a281a061a01723883331074a28
font_01_sfnt_off000082e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E5 18700 bytes
SHA-256: 9cf5927f48de073d536566d00352c45da2cff51891e4c509e4c52fd42c0e4c7a

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