Malicious PDF — malware analysis report

Static analysis result for SHA-256 59eec210865254a9…

MALICIOUS

PDF

66.2 KB Created: 2020-11-09 19:52:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ea095d2fdeeb4b6b0a4d17716c655b7c SHA-1: cd4caa924d4c16918c9b64fe111135dac9956168 SHA-256: 59eec210865254a98f6b2dc75e2171f3357ea52c79bc7b084d00635784ba0736
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/aws?keyword=mechanisms+of+evolution+worksheet In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368500/normal_5f9b3f0dad85a.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/tuzumisuda.pdfIn PDF document text
    • https://kinefevemupopit.weebly.com/uploads/1/3/4/6/134631160/47396d25d9f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367925/normal_5f8f6165d569a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393361/normal_5f91b9771d010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374372/normal_5f95baac4e930.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f86fa7a73164.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384316/normal_5fa8efafea0e3.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/3cb839f757cc7.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/gixawetopoli/jvc_kd_avx77_price.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/english_for_everyone_dallas.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/biology_investigatory_projects_for_class_12_cbse_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zewavidopexebi/catullus_85_english.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/xejovuxufusitasor.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/static_and_dynamic_characteristics.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/fitbit_inspire_hr_manual.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AD 5340 bytes
SHA-256: cfa023c095c544a6c4f69a92b61786cbf6dc74c75ec66066562c716aab77ae5d
font_01_sfnt_off0000dad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD2 9712 bytes
SHA-256: f5ee0b6d1965c7023b7126bef7ff27705ad71c2ef9c248003c054573a9ad2c05

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