Malicious PDF — malware analysis report

Static analysis result for SHA-256 41f6b6c7742f8182…

MALICIOUS

PDF

45.2 KB Created: 2021-05-11 05:41:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: eff19d9182c9b8399dff4e527f6eceb7 SHA-1: 17daac4aa0a8888968e0dcb7df9e2bfa177aec3d SHA-256: 41f6b6c7742f8182399426aeb0b65da4205c506359911de8d99d119067fe1880
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 0.9621

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/431946152/roblox-girl-game-hack PDF link annotation
    • http://studentslovetravel.com/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://studentslovetravel.com/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://studentslovetravel.com/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://studentslovetravel.com/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://studentslovetravel.com/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://studentslovetravel.com/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://studentslovetravel.com/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://studentslovetravel.com/images/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://studentslovetravel.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://studentslovetravel.com/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://studentslovetravel.com/images/coin-master-hack-xyz-download-free_GM406889139.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_off000048e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E3 26108 bytes
SHA-256: f5b3cb573b163448fa98d218282b493619fed3fa550416531b5c31b5a707b205
font_01_sfnt_off00008554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8554 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3F 17904 bytes
SHA-256: 0198c4e576fabf4ae71baaa50901788f8596c154ad681f47ebe4edd98d45d4fd

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