Malicious PDF — malware analysis report

Static analysis result for SHA-256 96083867b35e70a3…

MALICIOUS

PDF

44.5 KB Created: 2021-05-11 01:45:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 15c83b6063f88ad9f5bfb15f1629a9bd SHA-1: df93d79c7a4fdf89ad825e640bf656cc40991df3 SHA-256: 96083867b35e70a33645803ccf67d96a9588969b042f93e0e0157276801c3fd1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a 'free generator / game hack' redirector lure, pointing to a malicious URL. The document body and embedded URLs reinforce this, indicating a social engineering attempt to trick users into visiting scam or malware-distributing sites. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a potential for JavaScript execution if the user interacts with the document, which is a common vector for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/431946152/free-robux-earn-game-hack PDF link annotation
    • https://3qblocks.com.tw/image/data/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-coin-master-generator_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000492b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492B 24648 bytes
SHA-256: dc7c2f5eeb8c754146792f84f970d0f403e26e9acdffaac1eb008ca8fb81c279
font_01_sfnt_off000081c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C9 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B78 18244 bytes
SHA-256: b6014a1bf70a80b5b7176295bd11553985cf3fccea183fb301f46a2e8db4226f

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