Malicious PDF — malware analysis report

Static analysis result for SHA-256 a89f56cb98c91e74…

MALICIOUS

PDF

42.6 KB Created: 2021-05-11 00:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 11b5aaa35acefe61b13bf9a7b5435947 SHA-1: 4a182aab2658ab7c160dab8dcc47487ba5e0669a SHA-256: a89f56cb98c91e74f80ab245c7993309f2620da2fd84ac6f3fd0e15e9f07921c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The embedded URLs, including the primary one at `https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-game-hack`, are identified as malicious redirectors. The document's structure and content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-game-hack In PDF document text
    • http://lib.icbc-indonesia.org//repository/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/wurst-112_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-spins-for-coin-master-app_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_003_off00004a69.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A69 25252 bytes
SHA-256: c5fb113c42e876c4a2734458a137473e69d31ef16b3cea0c82506115b0fe137f
font_01_sfnt_off000084c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C1 18060 bytes
SHA-256: f77ee24e01944806ea28e16fd73427a54f7109e241804df06ce657d8c6d11cfb

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