Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e28c3b28109c47…

MALICIOUS

PDF

34.8 KB Created: 2021-07-01 07:49:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9e371ea37c9c3d1f0676cbf99869bc38 SHA-1: 2aaa9d8f3c6c300a5fca839a8514ac5b6af1d196 SHA-256: d3e28c3b28109c47e62188fa18942fdc2b2cb016f84389ff3a5c66dfc4f3100b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links, including a primary URL to 'netcdn.co' and a large number of links hosted on 'baratravelling.com', all related to obtaining free in-game currency or hacks for popular games. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the 'SE_DOWNLOAD_BUTTON' heuristic suggests a lure to click. This pattern is consistent with a phishing or scam campaign aiming to redirect users to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/is-there-any-way-to-get-free-robux-game-hack PDF link annotation
    • https://www.baratravelling.com/ckfinder/userfiles/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-villages_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-hack-no-verification_GM431946152.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
font_00_sfnt_off00002fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCB 22384 bytes
SHA-256: bb9c778e7df8b095002283f5806a389d410b69e444cf25814decfa94cf3a9ef9
font_01_sfnt_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 19364 bytes
SHA-256: 80b6394bfb37edc2ea14afbfa24f605699f6492fbe141c801abd30e44507c20a

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