Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0b6b8983d0c8942…

MALICIOUS

PDF

44.0 KB Created: 2021-05-17 05:17:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4d9f413cf9c53da17638aa1678ab66fc SHA-1: 1c6ff19a79ff775e71166930e3e9825b6910fb87 SHA-256: d0b6b8983d0c8942921097341ea80a6c23bfe213e6ffe882425e6eef1970cf2e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though partially obfuscated, also contains references to game hacks and the same suspicious URL. The presence of embedded URLs and the nature of the lure suggest the document is intended to trick users into visiting a malicious site, likely to download further malware or engage in fraudulent activity.

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-spin-link-game-hack PDF link annotation
    • http://szekelymozes.ro/images/robux-game_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://szekelymozes.ro/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4930 24552 bytes
SHA-256: b686176ca0e4ce8dc0451c50a911fda420d38131588da95e1e69998fa97f7dbf
font_01_sfnt_off00007f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F91 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off00008a70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A70 17892 bytes
SHA-256: 5eaa95033dd4e054ef8b2e0554ac351c032796849467c67c5432bd2ec705e461

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