Malicious PDF — malware analysis report

Static analysis result for SHA-256 2af589ba17a338d5…

MALICIOUS

PDF

49.2 KB Created: 2021-06-03 09:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bbd5a7fd93aedc7576d78768497771e9 SHA-1: 418a4c5e3a0fb74c335bba25b8bed0a2ea61a5dd SHA-256: 2af589ba17a338d538a399c340f1363dd8da79800a010d4bc7207a813558ce76
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 0.9796

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.online/app/431946152/get-robux-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hackear-coin-master-espaol_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_004_off0000511c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x511C 28216 bytes
SHA-256: 3f1e2ef367ab3fe295999c9633da189b81b8404421f17a9970addb22b0b6065c
font_01_sfnt_off000091e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E5 3884 bytes
SHA-256: 64ea6bfd232c3abde76d8b86727203bfa3f935a5783cd0c1f642cf6d3fb42b29
font_02_sfnt_off00009e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E8D 17952 bytes
SHA-256: a34a0f77aa554f5c92185b6c86909c5f9e39b3171f9efb4f2c073b614301e128

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