Malicious PDF — malware analysis report

Static analysis result for SHA-256 a254ce547c09dbef…

MALICIOUS

PDF

41.4 KB Created: 2021-05-10 23:53:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8b02978cde8aae0bce3488039a8d6785 SHA-1: d63cb87a598a551c90bd428f4e9601b8737b192d SHA-256: a254ce547c09dbef53c84d1334f79e1d5c3387798d21339880b7483a3b857c73
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, which is a common lure for malicious content. The embedded URL, https://netcdn.xyz/app/406889139/www-coin-master-hack-com-game-hack, is likely the final destination for a payload. The document body, though heavily obfuscated, contains references to game hacks and the malicious URL, reinforcing the lure. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/www-coin-master-hack-com-game-hack PDF link annotation
    • http://www.gadanie.lv/images/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-website_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-coins-in-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_off000047d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D5 24524 bytes
SHA-256: 5e95d492b181340c3945b8e84e64516cca40fc392135d25f5183b8af12ea74e6
font_01_sfnt_off00007f31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F31 18336 bytes
SHA-256: 98b72f07f157dd659abe6b90bb941092e2c9091b5a98e7ee6b0c4f52701e1412

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