Malicious PDF — malware analysis report

Static analysis result for SHA-256 735da442727a1493…

MALICIOUS

PDF

67.5 KB Created: 2021-02-19 05:49:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 080d2c6b76c5370c843b2104c5642d3c SHA-1: 762bdd7c2cc7a25ee8e49c0a6ca951a42afe0ea4 SHA-256: 735da442727a14936e01b1bbc25e48babd4a4a81750d2d6d590c62ad3f7098ea
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=bogle+phantom+red+blend+for+sale PDF link annotation
    • http://allwoman.site/33327022332fpd47.pdfIn PDF document text
    • https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/c8d5e360e6.pdfIn PDF document text
    • http://esclub.pro/satellite_radio_italian_musicw5bm5.pdfIn PDF document text
    • http://bachanalytics.com/23496962164l77d8.pdfIn PDF document text
    • http://mikakovakoj.iblogger.org/4617754237.pdfIn PDF document text
    • https://fuxexitir.weebly.com/uploads/1/3/4/0/134098624/7423688.pdfIn PDF document text
    • http://xewixejixukumes.22web.org/french_food_guide_pyramid.pdfIn PDF document text
    • https://lulofaki.weebly.com/uploads/1/3/1/4/131453598/0d0661dec95a24.pdfIn PDF document text
    • https://majijajivetik.weebly.com/uploads/1/3/4/2/134265766/webavinozurisa_jujaj_kefipidikew_vixetusezi.pdfIn PDF document text
    • https://xogosafaxisomig.weebly.com/uploads/1/3/0/7/130739024/tulafivazi-fotorida-pilamikuzuviv-zalopupulew.pdfIn PDF document text
    • https://likerediweraj.weebly.com/uploads/1/3/4/6/134691167/rurolajosevitoror.pdfIn PDF document text
    • http://oneitshop.info/222704945508x4pk.pdfIn PDF document text
    • https://murufirekitopu.weebly.com/uploads/1/3/1/8/131856476/rinetozu-towemomake-lavarob-tutojomasometon.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/xaliwalufoguni/19349155583.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/witivivarotamiz.pdfIn PDF document text
    • http://tokafibalo.epizy.com/62915781909.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/98324003873.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/videocitofono_bticino_classe_300x13e_manuale.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/rajukefemevivipegela.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/description_text_structure_template.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/59512031933.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/4liker_1._0_version.pdfIn PDF document text
    • http://fububosuvakosal.epizy.com/spelling_test_template_printable.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_off0000c996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC996 5644 bytes
SHA-256: 0346f8cdbdc1b0ec24389754d21604691889e7afee7e6e52abd8e75f6399b825
font_01_sfnt_off0000dc98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC98 10612 bytes
SHA-256: 918ae8afee6bf80a2dda11623e0b93542de26109aeacf55482de75a69037e353

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