Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd8dbdb4b6269968…

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 07:24:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 77e5589f8eac92abea3120bf2999bb3d SHA-1: a0edf76c252d456aeb0539e3a74db50d764ff7dd SHA-256: dd8dbdb4b626996813f2f7463be72853d1d47f434ebe561ecc866509b8d3c7de
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded links and lures related to game hacks and free currency, directing users to external websites. The heuristic firings indicate that the PDF is designed to redirect users to potentially malicious content, likely for phishing or malware distribution. No scripts were extracted from this sample, but the presence of multiple malicious-looking URLs suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/free-robux-codes-2021-not-used-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/roblox-girl_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-app_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/pubg-uc-price-list_GM1330123889.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/ww-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/master-free-spin-and-coin-links-html-m-1_GM406889139.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
stream_004_off000051f2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51F2 26412 bytes
SHA-256: 7aa07d830426b6fb806cfbd12e350e928ca2b1132939da0febbc8ae493394836
font_01_sfnt_off00008de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE7 18880 bytes
SHA-256: 342a41804753b243bf13fa7c19db71c7debbb8fa80f4750c82899b0ccf7aa343

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