Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60bcade684368c7…

MALICIOUS

PDF

68.0 KB Created: 2020-11-11 15:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 8abdc0dd43b45ef1087e79e4c60c8d2d SHA-1: f8c0e312733c005cdbae81009a92347be88ec28d SHA-256: f60bcade684368c7d622c447f1251edd9b1f748c4364a8c444f114b3e14e2d9a
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://traffset.ru/wb?keyword=final%20fantasy%20xiv%20refer%20a%20friend PDF link annotation
    • https://lukumupanulafaz.weebly.com/uploads/1/3/4/6/134683212/vagoteloserujix_samezifodug.pdfIn PDF document text
    • https://zuxubemusaf.weebly.com/uploads/1/3/1/4/131453996/sosut_xositefisafunif_kolevu.pdfIn PDF document text
    • https://laxaxaxiw.weebly.com/uploads/1/3/4/5/134528460/rezuxawutisa-jovujuzogo-juvezopi-pimogifukoxaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428038/normal_5fa0a12750f14.pdfIn PDF document text
    • https://xilorufanil.weebly.com/uploads/1/3/0/7/130739938/8438231.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/jujotawesotija.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/96396902088.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/when_one_finds_a_worthy_wife.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/kambikuttan._net_cartoon_download.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/96136380542.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/sony_vaio_manual_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/womipisabilaroxulixukuj.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/google_donkey_kong_doodle.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/zodolatiterewujoburixadew.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBA 5084 bytes
SHA-256: 8cfdb6b5e684e4ae1e7e8083036402f578cd8974206a9715f03b763e328a11bb
font_01_sfnt_off0000dd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD28 11248 bytes
SHA-256: 27c1b1530e13e826028a7c270cb95292f36222020b2004c06c07a42636476280