Malicious PDF — malware analysis report

Static analysis result for SHA-256 849ad556970e8cfa…

MALICIOUS

PDF

64.7 KB Created: 2020-12-08 06:45:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: aa84f218857ee267a708a359f520b8f4 SHA-1: 8e86084cce2d61ef11fa51213f6e037a0b41a3d5 SHA-256: 849ad556970e8cfa5bff13d4ac7afe585187390b086c1e11817d47c2741788ff
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://trafftec.ru/strik?utm_term=alcatel+a405dl+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376866/normal_5f8d0ae7ad425.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477637/normal_5fb30bd9b4e61.pdfIn PDF document text
    • https://bozemabaseduwem.weebly.com/uploads/1/3/4/8/134880117/tigakeju-lazolupebap-novujovurigis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413850/normal_5fb45e88bd0a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370052/normal_5f8a9fb6b8032.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448743/normal_5fb81c0508731.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f8752919efe1.pdfIn PDF document text
    • https://kevegojap.weebly.com/uploads/1/3/4/8/134863313/8230600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421630/normal_5fad51542bcaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384483/normal_5fc4b3ff966ba.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/fedure/fijiwogutekavexufewofi.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/gate_electronics_and_communication_book.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfeb102bbd74065800e14d/t/5fc50d521972c46e3c3d1d18/1606749522678/xovez.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e92a0a2757459be2ed0b/t/5fca2990e4017829c173bfb4/1607084436386/tejavamulojezanafane.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ba6ac89e1c4b8fbd7cfc/t/5fc1f9efeaf37e3b64e24c0e/1606547952638/bard_prestige_classes_pathfinder.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_off0000c164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC164 5156 bytes
SHA-256: 3265b82b5f4018101c7f5960e2e45bad7b38b426630ed05ff2905590fb199db6
font_01_sfnt_off0000d2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2EA 10428 bytes
SHA-256: bad8bd42763e0896c587feb2aa78b5c68f7c5c429ca7f3a204fe03c3c68e4801

Open this report in the interactive analyzer, or submit your own file for analysis.