Malicious PDF — malware analysis report

Static analysis result for SHA-256 46dbb56e2057e5aa…

MALICIOUS

PDF

32.6 KB Created: 2021-06-26 19:48:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e5263c397f425b54bd6565f5a7a91643 SHA-1: 01bcfbcf7f216ab233f12a61b167a0dde306806e SHA-256: 46dbb56e2057e5aa7b43c1b3bb6deb4b32ebe54cd247e2c0b39a3eb1bc78f353
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The primary lure is a link to 'speed-hack-roblox-cheat-engine-2021-game-hack', which is hosted on netcdn.co. This suggests a social engineering attack aiming to trick users into visiting potentially harmful sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/speed-hack-roblox-cheat-engine-2021-game-hack In PDF document text
    • http://lib.fisipumt.ac.id//repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/tiktok-free-hearts-apk_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-survey-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-lua-7-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-free-robux-generator_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_off000029f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29F7 21276 bytes
SHA-256: 3b378044741fc3977565d87353743268d88f7adf2c1093f6a65912d11090e4ff
font_01_sfnt_off0000582d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x582D 19800 bytes
SHA-256: 3ac1fbdfe4424ab811e66cb5cab687bcef626cacf0c5303414f6d388a14f4990

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