Malicious PDF — malware analysis report

Static analysis result for SHA-256 34daf02454cee2d9…

MALICIOUS

PDF

68.3 KB Created: 2021-02-16 23:17:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 46f2bee76a71b61c211788af4f467ca6 SHA-1: 0900d8dfd1f18e100532dca32dce599cfb671c36 SHA-256: 34daf02454cee2d9c3362fbed097555a1cf5cd173b0be951ee25a7acebaf1dc8
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://leonvi.ru/aws?utm_term=epson+xp+400+ink+officeworks PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4490929/normal_60059e6418431.pdfIn PDF document text
    • http://jidugisukeranav.iblogger.org/58766569042.pdfIn PDF document text
    • http://filemarker.store/whatsapp_messenger_apk4fundlw0l.pdfIn PDF document text
    • https://redulexaxoxega.weebly.com/uploads/1/3/0/8/130874010/voval.pdfIn PDF document text
    • https://jukamonasob.weebly.com/uploads/1/3/0/7/130740128/dexonozo_vekif_kadebefidegudux_barapuxal.pdfIn PDF document text
    • http://dofolamemudowu.22web.org/china_star_food_group_annual_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419452/normal_600f75dc4b7e6.pdfIn PDF document text
    • http://sukuzarimeke.22web.org/video_er_google_chrome_app.pdfIn PDF document text
    • https://nebekateri.weebly.com/uploads/1/3/1/1/131164314/a2c5ceda1d443a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404987/normal_6022137386116.pdfIn PDF document text
    • http://fasodotujane.iblogger.org/bilapivisekelixexenutugi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zilajib.epizy.com/25343627289.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/95951220809.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/navajixuvemulalasozakuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/wadeziruzumigajaju.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/pokemon_emerald_battle_frontier.pdfIn PDF document text
    • http://fopekexu.epizy.com/rifukutixazulej.pdfIn PDF document text
    • http://vorasatijede.rf.gd/3522092860.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_off0000d015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD015 5180 bytes
SHA-256: daaa33e6d801e0b06705ac1821d537eb9162474ce7b740f300fddf254715b243
font_01_sfnt_off0000e1ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1EF 10336 bytes
SHA-256: cbdd56e753540c7156654c2c7750d51b7d1435ea833cc055b591a9637c7da81d

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