Malicious PDF — malware analysis report

Static analysis result for SHA-256 70f5cf7c7777558d…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 17:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: eb0efb47c9d5a5ce030ca483ebce3839 SHA-1: 134b7ab728942bf633762fa7cbe1072f100ab3fc SHA-256: 70f5cf7c7777558d98dd9d769ddd77a84b0b47e21b83ad8c18deaeb55bceb943
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 0.9980

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 http://netcdn.tw/app/431946152/win-free-robux-game-hack PDF link annotation
    • http://perpus.janabadra.ac.id/otomasi/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/how-to-fly-in-struid-roblox-for-free-youtube_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-game_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-free-v-bucks_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/working-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-salty-kid-thinks-im-hacking_GM431946152.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
font_00_sfnt_off00002f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4C 22408 bytes
SHA-256: 484694502bf79166a752a723c52ee7598eb423aaf2d833b1253a91ef073c30fd
font_01_sfnt_off000060fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FA 19036 bytes
SHA-256: 866c875b7ada575fda7e0b2d16b4e3d455f2c28d19dc14b305271f934871ca62

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