Malicious PDF — malware analysis report

Static analysis result for SHA-256 1080340258a63901…

MALICIOUS

PDF

47.0 KB Created: 2021-05-14 21:10:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d94d21e2ac9c64af337f3c7fda7d6024 SHA-1: 6a98c24a07187ad885fed415ba0a4bd7350769db SHA-256: 1080340258a63901e1517f556771c6ed51da0458c5c526ab33e342dce4ce2e5a
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. 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 0.8948

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/roblox-hacked-version-game-hack.
  • 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/431946152/roblox-hacked-version-game-hack PDF link annotation
    • http://posterprintshop.nl/images/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://posterprintshop.nl/images/real-robux_GM431946152.pdfIn PDF document text
    • http://posterprintshop.nl/images/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://posterprintshop.nl/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://posterprintshop.nl/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://posterprintshop.nl/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://posterprintshop.nl/images/coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://posterprintshop.nl/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://posterprintshop.nl/images/coin-master-free-spins-link-2021-today_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004976.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4976 26504 bytes
SHA-256: 2f4dd4322eeed2eb1a93465864732c146c611d25d177389a7ccf0296bbdc1e13
font_01_sfnt_off0000871d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871D 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000942f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x942F 18608 bytes
SHA-256: 1ecc9580a68a9d8cddaeb68f5ba7642643800a9b47dfc5932154ad501a7e9da7

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