Malicious PDF — malware analysis report

Static analysis result for SHA-256 f190563df325d680…

MALICIOUS

PDF

75.4 KB Created: 2020-12-04 05:33:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3baaeb5c4beea38004e1ac71374ebff8 SHA-1: 95d4c6ef376cba5b9c0a7a1ebd039d7f4be929d8 SHA-256: f190563df325d680812ef224a588bb2fd265eeedddfb55927b1f3d2f0bfd95e4
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/aws?utm_term=cardiac+amyloidosis+treatment+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420014/normal_5f975250d7a5d.pdfIn PDF document text
    • https://sowosevutab.weebly.com/uploads/1/3/4/3/134311467/6218772.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367950/normal_5f8c99fa53436.pdfIn PDF document text
    • https://fodorofofojep.weebly.com/uploads/1/3/4/7/134769626/000db32fb2bb1d5.pdfIn PDF document text
    • https://zipemulobob.weebly.com/uploads/1/3/4/5/134528333/winafamudamuloki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a165d096-c056-4b5f-8975-7dfb01609c95/35657440233.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/estimating_products_math_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18c699698b02c7f25315b/t/5fc555a35147b14804e33bdc/1606768035751/multiplication_table_of_309.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/words_with_pedis.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/diy_manual_exhaust_cutout.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ccd688c99b6d37b395bd/t/5fc9923cd7c3040d8729e3d8/1607045693928/68215548171.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/bomosusinifis.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc560f9c89e1c4b8fdc8e4d/t/5fc998fe3ff94c207e033b3d/1607047426244/fewekoxakebepurexikiwoxiw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc51ce4d26ff1194f8f2d2c/t/5fc97db652b5874c85865311/1607040441009/37037185658.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/family_farm_mission_guide.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_off0000eba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA3 5308 bytes
SHA-256: 3345022c011c2086dc74ecbc2bc9f6ab2b4d90f41ce65f89d1eab3a1b928976f
font_01_sfnt_off0000fda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA5 10376 bytes
SHA-256: 673de2b46bd079afd66440967f21c64cdd291ef308297e02cff4a67ab1394889

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