Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f92014a58285fe…

MALICIOUS

PDF

51.3 KB Created: 2021-06-07 19:58:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0ecc955af50b2d8e345a06abbe3061f9 SHA-1: d6617b07f38881d16f0ac98a8a71d4456e6f6f0e SHA-256: 96f92014a58285fe31c50890bf9a8dc33ac1f8cbea0711782fe048b7b4277576
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to websites offering game hacks and currency generators, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of multiple external URLs suggests an attempt to redirect the user to a malicious site. No scripts were extracted, but the document's structure and embedded URIs are indicative of a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9861

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.tw/app/431946152/roblox-hack-tix-and-robux-generator-2021-game-hack PDF link annotation
    • http://aviaprofsoyuz.info/images/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/tiktok-free-steam-games_GM835599320.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-free-clothes-on-roblox-2021_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
stream_004_off00004f98.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F98 38448 bytes
SHA-256: 3cd089b7add8cef20d324289cccb1fa0da7cee808af62314a07229f5cbaef58e
font_01_sfnt_off0000a3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3BC 19120 bytes
SHA-256: 60f2e4ea1f35c224e6cf003443eb157665791d468e832b74f9aea2691c93f8b8

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