Malicious PDF — malware analysis report

Static analysis result for SHA-256 c99bb20f8999324a…

MALICIOUS

PDF

37.3 KB Created: 2020-04-07 08:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 51d021d938a15cd944f5d67c34168748 SHA-1: 7b313a9e933a349af09be3c35f46600e09a10388 SHA-256: c99bb20f8999324a57ab5e8df0d5cfeb6b2901e6d8f48867ff6fafc12fa3ad84
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO abuse tactic. The document body text, though partially corrupted, includes a phrase related to a Google translator, which is likely a lure to direct users to malicious websites. The primary heuristic identified a link farm with numerous PDF files hosted on various domains, indicating a coordinated effort to distribute potentially harmful content.

Heuristics 3

  • 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.
  • 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://theyouthbox.com/uploads/1/3/1/3/131398559/131398559.html#traductor+google+ingles+espa%C3%B1ol+con+camara
    • http://plexusslimlindsey.com/uploads/1/3/0/8/130814340/2629541.pdf
    • http://perfecttouchjanitorial.com/uploads/1/3/0/5/130544072/pegukinirapil_dotelofofobi.pdf
    • http://wholesalecbdblunts.com/uploads/1/3/0/5/130550936/6724891.pdf
    • http://montoyaconsultores.net/uploads/1/3/0/5/130547069/8ef94d12e4db.pdf
    • http://sidemountainspecialtyfoods.com/uploads/1/3/0/8/130814234/vaburaguvedife_texevuxaxasif.pdf
    • http://trilliumdayspaonjohnsriver.com/uploads/1/3/0/6/130604838/bb2d4.pdf
    • http://breakineggs.com/uploads/1/3/0/7/130776460/lovapisese.pdf
    • http://themadhattermagic.com/uploads/1/3/0/5/130551059/wemuvaluxikenivepepe.pdf
    • http://ohakunegallerymuseum.com/uploads/1/3/0/6/130604807/59b91ad032f8.pdf
    • http://brokencrownclub.com/uploads/1/3/0/4/130488304/be86e67dc.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066c7.bin
80e1bfa62eda5ead135bbf4cafa3f4346e8ee60864b1e667df5be5d51005f3bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66C7 8608 bytes

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