Malicious PDF — malware analysis report

Static analysis result for SHA-256 79209428373c10ac…

MALICIOUS

PDF

43.6 KB Created: 2021-05-13 19:11:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2774ba36921e6cc9a07d0c0fbafbd0cc SHA-1: d29e1480f079e3f350d95567979580c28338d864 SHA-256: 79209428373c10ac78556dd72e591de9a8c2de2823f5c8f8a530df73fabdf676
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 0.9648

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/406889139/coin-master-hack-app-for-ios-game-hack PDF link annotation
    • https://javisintlmedia.com/images/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-education-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-live_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-wings_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-hacker-mask_GM479516143.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_off000046b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46B1 24712 bytes
SHA-256: 229e07dbec2581a5b8ed1f7ffe1e274aadfdb48d614bbd0d787487a8ef8e33e3
font_01_sfnt_off00007e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E66 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8851 18056 bytes
SHA-256: 99ac472fc9888c4d6196604e4bfd2ad69a0378f55b2e0b369b27c1a23b293745

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