Malicious PDF — malware analysis report

Static analysis result for SHA-256 68999ec66b56fc87…

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 16:14:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a822a1ae33706fb249bb94a49d09d2b6 SHA-1: 03fa2891e3230d97515e616be19412207010e9fc SHA-256: 68999ec66b56fc877671a66ca5e602597d57b6ce3ee77d03d3d28093d397dc71
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a link farm of 28 external URLs, many of which are SEO-optimized and point to other PDFs related to game hacks and free currency. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document's primary purpose appears to be facilitating the download of further malware or engaging in scams.

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/downtown-rp-script-hack-roblox-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/roblox-free-download-for-pc-windows-7_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-esp-hack-script_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/hacker-club-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-any-gear-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/easy-ways-to-get-free-robux_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_off000031ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CE 22524 bytes
SHA-256: 6fd1c2b5a70f012977ba8daa69184c669bc3c0822c86dd82b0da538023016c5f
font_01_sfnt_off00006434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6434 19388 bytes
SHA-256: 967fb3e8d03b7cd3a93babf6947e3fb2db80945f0b828ffa4c51d77a1504e2d8

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