Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48772949e4acfd5…

MALICIOUS

PDF

40.6 KB Created: 2021-04-22 15:08:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 068e7c024520d97b47c65f534853e92c SHA-1: bb96d32e1e04b65f1f245b5cf53d537be15040e7 SHA-256: c48772949e4acfd59db28d69f8ec84157cae829c5dd6a949c5188365f3c68c10
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Roblox Hack No Crash' and a prominent link to a suspicious URL. This suggests a social engineering tactic to trick users into visiting a potentially malicious site. While no scripts were directly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to a resource that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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://netsecure.pro/app/431946152/roblox-hack-no-crash-game-hack PDF link annotation
    • http://pustaka.ust.ac.id/repository/cheat-codes-for-roblox-retail-tycoon.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/hack-for-rpg-world-money-on-roblox.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/new-hack-for-roblox-2021-december-download-mediafire-jailbreak.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/hacks-for-electric-state-roblox.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/emperor-roblox-hack-download.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-hack-a-roblox-account-easy-2021.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-ingame-score-hacks.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-get-hacks-on-roblox-streets-2021.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_off00003b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B35 24320 bytes
SHA-256: 3fb6ddbc3ced0adac1780fefef987b4535360c9867f8a9e9a4e01297c9a716bb
font_01_sfnt_off000072cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CD 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00007c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7D 18348 bytes
SHA-256: 56bb44ad48d9e939ed9d160ea92e6bf4972a185f7edebd1f27c08464f3fc14f8

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