Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a9bd30539dee53…

MALICIOUS

PDF

70.9 KB Created: 2021-02-24 22:44:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cdb19009a01ac2ae4fbf316fc27ff701 SHA-1: 1bb10cd203197feb9d5b7cdb381046ff41482cb2 SHA-256: e6a9bd30539dee530b5474c2413b4abb306ffe309f785015a6df9108a5dfec93
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=how+many+carbs+in+a+chick+fil+a+market+salad PDF link annotation
    • https://rotaxavevun.weebly.com/uploads/1/3/4/8/134884867/5b821e2.pdfIn PDF document text
    • http://my-favshoph.online/fejarajifolekagepivuderoq9xsc.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/el_mundo_de_sofia_english_subtitles.pdfIn PDF document text
    • https://rudoliretumuw.weebly.com/uploads/1/3/4/8/134861944/b7a9050108.pdfIn PDF document text
    • http://xevusezes.medianewsonline.com/guwotawezelojejopos.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/jeZjjjf/23722773947.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/does_the_watchmen_movie_follow_the_comics.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/mumakaxukatibawofow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419832/normal_60196b41dd879.pdfIn PDF document text
    • http://i12tws.website/rupinder_gandhi_1_movie_song08osa.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/kukupunopedon/bugefofezakugimuta.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/premiere_title_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/9635089383.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/84358891889.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_off0000d7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D5 5620 bytes
SHA-256: 2fed1186716b21edc348d959fe19a394802742e018412f40e4516877def56c57
font_01_sfnt_off0000eada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADA 10408 bytes
SHA-256: 3e0be1887066755b23d80c3af7bf1b21a4a017cd9bf53b431b37aeb6872ecc0a