Malicious PDF — malware analysis report

Static analysis result for SHA-256 757c042a4182da21…

MALICIOUS

PDF

33.4 KB Created: 2021-06-26 06:58:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bf9403fa0e82071ddf4379a28d70cffb SHA-1: 15fa60772433d8be33e982068adb46b01db93d7f SHA-256: 757c042a4182da219e8f446954a63ac1a606868fc4b21c59e6996691e2376a95
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.co/app/431946152/free-robux-2021-youtube-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/pokemon-go-free-and-home_GM1094591345.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-roblox-ac_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-today-generator_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-coins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-roblox-every-day_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-do-yuo-get-robux-umlimted-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-2021-actually-working_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-games-browse-our-selection-of-free-online-games_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_off00002dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD8 21312 bytes
SHA-256: 3e1239ff18a765480979039bbf685c171e83f84c9f072de773fd7750557f5abb
font_01_sfnt_off00005c60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C60 19384 bytes
SHA-256: 7f45d9fb96b29a7a7012a08b36c2af5c35e45941a4d2ce907b2a636e677c7ab4

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