Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d43b20bd30d82c1…

MALICIOUS

PDF

31.7 KB Created: 2021-07-03 12:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: edc488510cfdab98aca2a3d08b059bd6 SHA-1: 9af723145f15ac53e6e994d22a7c79e6eeb7f205 SHA-256: 2d43b20bd30d82c1f72142515c630da44b347f719c7b8dee250b2f95421d2395
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded links that redirect to known malicious infrastructure, specifically advertising 'game hacks' and 'free generators'. The primary link, http://netcdn.tw/app/431946152/aimbot-exe-roblox-game-hack, is identified as a malicious redirector. The document body and heuristics confirm the lure is related to game cheats and free items, aiming to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 3

  • 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.
  • 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.tw/app/431946152/aimbot-exe-roblox-game-hack In PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/where-tiktok-free-views-app_GM835599320.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-hack-paintball-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-kill-everything-on-the-map-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/site-to-have-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/hack-to-make-you-move-in-roblox-survivour_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30FD 23168 bytes
SHA-256: 1217a25f5847f7e7dc1781e6d514bbfd6529f33fb305e0de96b0cb8a17375f8c

Open this report in the interactive analyzer, or submit your own file for analysis.