Malicious PDF — malware analysis report

Static analysis result for SHA-256 c617f03575ed9124…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 23:46:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 935ec928cd653ed374f26af730f7c74a SHA-1: 1500365419ea6ba5f92f94063b003ce372b997f9 SHA-256: c617f03575ed912487914cf9fa23f7f2abe6ee5f0590f2b4a176e23b808682e9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a "game hack" lure, specifically targeting "Coin Master". The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the presence of external URIs and a game hack redirect lure. No scripts were extracted, but the document's primary function appears to be directing users to a potentially malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/406889139/coin-master-hack-club-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/coun-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/tiktok-free-likes-app_GM835599320.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/actual-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
stream_004_off0000503c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x503C 24860 bytes
SHA-256: 346ca7cabf15f795c9efcea330f9938a79e5734b9e25f6384dd964640a93a8b3
font_01_sfnt_off000088c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C7 18088 bytes
SHA-256: 489fcd50e077ea385706302a414b20846aa2690c2d534c5e871bb508b565cca7

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