Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c186de51429207a…

MALICIOUS

PDF

35.4 KB Created: 2021-06-26 12:08:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 123a4970f646a905b0ba4bd9f928fde6 SHA-1: 93068fdb3bd6fb4cf4f8a8693677b30c638fd513 SHA-256: 0c186de51429207a2e5676974c799d7dbefcd923fff29ab5ad7e75019454c120
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external resources offering game hacks and free currency for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier strongly flagged this PDF as malicious. The document body and embedded links suggest a lure to download or access potentially harmful content.

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/adopt-me-roblox-play-for-free-game-hack PDF link annotation
    • http://muslib.unmus.ac.id//repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/pokemon-go-free-12-km-eggs_GM1094591345.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/ho-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/nuevo-hack-165-ept-generador-de-robux-by-piignoiise_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-anything-for-free-on-roblox-2021-inspect_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-just-by-watching-videos_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-do-you-get-roebucks-for-free_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_off00003148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3148 22680 bytes
SHA-256: 162994c5980eabca17c794426676733cfe3ec9094ff0eaf4379ea7016343a3af
font_01_sfnt_off000063ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AB 19636 bytes
SHA-256: 20032687309a455faafca0650deb52e8523c877a65266bd37b8400309a12109d

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