Malicious PDF — malware analysis report

Static analysis result for SHA-256 f54605b8aaeba004…

MALICIOUS

PDF

34.9 KB Created: 2021-06-26 09:35:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 35dfc0930424be74602466bc971c37f8 SHA-1: e93b65d61dd5c722d218df8a3222769c1a7aab05 SHA-256: f54605b8aaeba004be75e2436f34b58921714c07c4da32ac1f0160fd1f7e9737
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious domain, masquerading as a 'free generator' or 'game hack'. The document body and extracted URLs reinforce this lure, aiming to trick users into visiting the malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

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/can-you-get-roblox-on-switch-for-free-game-hack In PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-invite-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/roblox-free-boombox-backpack_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/q-clash-roblox-release-date-for-free_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/hacks-no-download-for-counter-blox-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/3-roblox-hacks-you-need-to-know_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/fps-hacks-roblox-aimbot-not-pf-v20_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/roblox-bloxburg-hack-script_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/real-robux-codes_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-coin-master-app_GM406889139.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/watch-ads-for-robux_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
font_00_sfnt_off0000312d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312D 22060 bytes
SHA-256: ba2a3d663a4e1d28d4936261c46a0b34a5af901436b0e3f05c2a3e765eb6cde4
font_01_sfnt_off0000620d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620D 19508 bytes
SHA-256: 28254b6c0f1cae0645e9f8f690f797e46aa1f8c3f0b5ebd5cb835f9a4af7aa57

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