Malicious PDF — malware analysis report

Static analysis result for SHA-256 133d10b1f00a1a10…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 10:03:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 73e73a2678f0c64034b00f44c2846e2f SHA-1: fd1c26614aff3af1395ea783c9625a79ef545c79 SHA-256: 133d10b1f00a1a10cd35dcd3cb55c7aa69226d7980531d98ffd0fb2adeb60175
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to domains associated with free in-game currency or item generators. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting a link farm designed to attract users searching for such cheats. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of numerous external links and the nature of the lures strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9804

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.online/app/406889139/coin-master-free-spins-game-hack
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-on-android_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/free-links-for-coin-master_GM406889139.pdf
    • https://digilib.darmajaya.ac.id/repository/free-spins-coin-master-without-survey_GM406889139.pdf
    • https://digilib.darmajaya.ac.id/repository/free-minecraft-gift-codes_GM479516143.pdf
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-for-real_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/avatar-roblox-game_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/minecraft-bedrock-free-server-hosting_GM479516143.pdf
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdf
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
    • https://digilib.darmajaya.ac.id/repository/free-robux-that-actually-works_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/lazyblocks-com-robux_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/coin-master-spin-link-today_GM406889139.pdf
    • https://digilib.darmajaya.ac.id/repository/free-coin-master-spins-daily_GM406889139.pdf
    • https://digilib.darmajaya.ac.id/repository/free-robux-with-no-survey_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdf
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ddb.bin
1c460d82a15db3c986c662e5012a467f86ef8ed6ae72eea5a275a485a1633299		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DDB 24676 bytes
font_01_sfnt_off000084c5.bin
7b855ef2bb944b5b370c61480927ccad63ff31bdbf820bc1f0da9d35a10f5fb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84C5 17884 bytes
font_02_sfnt_off0000a589.bin
e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA589 3264 bytes

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