Malicious PDF — malware analysis report

Static analysis result for SHA-256 2797046ca1776ea9…

MALICIOUS

PDF

33.7 KB Created: 2021-07-01 17:34:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c4ccbdbd79de1a7d507ca376b39c95bf SHA-1: 572336ec6f03c8100e46a5c124a31d9e173e8676 SHA-256: 2797046ca1776ea98649cc3327dcb71d7d026e3288febefae8091d9889ca8d0b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and generators to entice users into clicking embedded links. The primary link, http://netcdn.co/app/431946152/free-roblox-dress-game-hack, is associated with a high-risk redirector, suggesting it leads to a malicious payload or phishing page. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate an attempt to exploit user interest in free in-game items to deliver malware or facilitate credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-roblox-dress-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-roblox-model_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/easy-way-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hack-for-killin-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-code-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/bc-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/top-10-los-mejores-no-hack-de-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-generator-no-human-verification-no-download-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hacks-roblox-funcionan_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/cheat-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1E 22516 bytes
SHA-256: 803da8a9def428f0642791bb0ab2ffd560b312f26d1bf6ee56a53f989337e1d7
font_01_sfnt_off00005f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F35 18816 bytes
SHA-256: 841723abf094694cccd1901a94a78c8de54716e21ec1ad9a81e33b87d6ecfba7

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