Malicious PDF — malware analysis report

Static analysis result for SHA-256 10318806a5550f00…

MALICIOUS

PDF

46.1 KB Created: 2021-05-19 22:16:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 084a4318fee3eb1ade7088de947bda28 SHA-1: 6b39edd7952e1e4368ec61ee18f94433f80e455e SHA-256: 10318806a5550f005cc009b88e2fb0e8491241f1042c332033dba688ff40cb1c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, including one that masquerades as a game hack generator. The document body and heuristics indicate a lure to trick users into clicking these links, likely leading to further malicious content or downloads. No scripts were extracted, but the presence of malicious links and the lure suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/479516143/how-to-make-a-minecraft-client-game-hack In PDF document text
    • http://battistibrothers.com/system/userfiles/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/robux-page_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/play-coin-master_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://freegiftcodes.euIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004db2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DB2 26112 bytes
SHA-256: 2c511858e0cbacc85d7d446d39fb018a524563ab1c9f155a93251eb7c58cb316
font_01_sfnt_off000088c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C4 2840 bytes
SHA-256: 787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606
font_02_sfnt_off00009283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9283 18116 bytes
SHA-256: 56ece9bcb07882a6659c5f7e1ce038c62729a3d0bc69e44cc409015ae3a9828f

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