Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fe2293b77c57921…

MALICIOUS

PDF

46.6 KB Created: 2021-05-12 07:45:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 01983aeb5cb9abc46e5ff3cc905976ed SHA-1: f0299a883a1a6b56da624ca21bd0d762aa43af57 SHA-256: 4fe2293b77c579210249e88cf5739821df54e190bcc07082f58babf4a88372f7
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 0.8948

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/431946152/how-to-get-free-robux-games-game-hack PDF link annotation
    • http://librarysenior.com/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://librarysenior.com//repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/i-cant-get-free-spins-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49CE 25000 bytes
SHA-256: fe1fb1be44e60dbe0fda50504908a1e3e846a792c239877f18f1ef85a79622e3
font_01_sfnt_off00008213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8213 4660 bytes
SHA-256: b8980cdac4d025496d9fe039d8c05bb5b9bae1b804244a1f9c05e9663db72816
font_02_sfnt_off00009224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9224 18768 bytes
SHA-256: f0658a260a8345a08039bbf50682235c712e1d6bfd9b3eebd82ad720f29012b5

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