Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a68e9f4285357ae…

MALICIOUS

PDF

41.7 KB Created: 2021-05-16 04:08:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 3bab784a5079f43b046cfdaff7125482 SHA-1: f7820b2ece5b26cab33f700b305e820cda85f684 SHA-256: 2a68e9f4285357aecf72b6465dd1d7912a643bd56dc08ad43af6758cb0297981
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generators' or 'game hacks'. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-link-today-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirector workflow, likely intended to deliver a second-stage payload or phish for credentials.

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-spins-link-today-game-hack In PDF document text
    • http://livsgnistans.se/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-app_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/blox-rewards_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-codes-no-verification_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
stream_003_off000049d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D6 24380 bytes
SHA-256: 79321d390e4b5e9fc526a64d992de21eb0d3fa05edd768a215e68413ecb1c61a
font_01_sfnt_off00008007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8007 18412 bytes
SHA-256: ee277532c3187caf3da016130e4cbd3fee848ac0b1174d0f40fc16c12ed3c41d

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