Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae869a4d6870fc06…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 19:07:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 96c720f21edd482f2a0da1b7162d29e1 SHA-1: 00184595384c5db98f11d0c2ba36681a3c2bd25c SHA-256: ae869a4d6870fc06c7a311214d9374766b13ecfa0f4aac848e92be97d00d693d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and Robux to entice users. It contains multiple links, including one to a known malicious redirector at http://netcdn.co/app/431946152/free-robux-no-test-or-dowmload-game-hack. The document's structure and embedded URLs suggest it is designed to lead users to potentially malicious websites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-robux-no-test-or-dowmload-game-hack In PDF document text
    • http://stikespantirapih.ac.id/home/repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/money-cheats-sims-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/counter-blox-roblox-offensive-hacks-download-2021_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/shark-bite-hack-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-get-a-free-package-on-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/cool-roblox-shirt-templates-free-shipping_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-no-surbey_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-roblox-followers-no-verification_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-free-telechargement_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-50-tiktok-views_GM835599320.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_off0000309e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309E 22520 bytes
SHA-256: 0452e0df0e3e783667a31d0fd7d57b0861673c6ea2cc0da2a0854794c3e9a72f
font_01_sfnt_off0000632b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632B 19660 bytes
SHA-256: 8abd8bdfad054ba639852db984ec745094c2c9ed0505877df72365eaa8e2b75b

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