Malicious PDF — malware analysis report

Static analysis result for SHA-256 011a539dd4a1473a…

MALICIOUS

PDF

67.2 KB Created: 2020-11-27 19:26:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 4afe2be766fcb1bfc40f13eae228c2b8 SHA-1: 624c9cbf07b02a52f7d801296f3a6bdafa0a6b4e SHA-256: 011a539dd4a1473a036c7710d9262b69dc27966329be7a83cf26c0bedef13c47
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://traffking.ru/strik?utm_term=king+ramses+courage+the+cowardly+dog+full+episode In PDF document text
    • https://mepafuxutare.weebly.com/uploads/1/3/4/6/134660934/sakitivezilike.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366354/normal_5f873efa94aad.pdfIn PDF document text
    • https://xukaxikerebata.weebly.com/uploads/1/3/4/0/134042698/dab3001db1db.pdfIn PDF document text
    • https://dujopoda.weebly.com/uploads/1/3/0/7/130739119/337a5b62188.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c8b3.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c8b3.bin)
    • https://uploads.strikinglycdn.com/files/e0d9feb3-b024-498e-9685-8ac7734f56a0/carrie_kelley_wiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8306da90-6156-4d9a-ae16-9069d53d9ce6/21715473652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1927b529-7177-4073-9cc7-14051d1de532/49988898333.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42eaa205-2e34-47ec-8c06-df5e3f036bb6/72484761019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5ab0e8f-6958-4122-8d77-af30ad687167/30429334633.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/84400274352.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/accounting_chapter_15_test_a_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00bb04cf-ef87-43af-857f-33d5c3d98bb5/paradigm_atom_speakers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb6a7ed5-01ba-4c24-9042-a0e9e9610cc5/36212194787.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e11beed-e98a-4430-a2a7-eb1d0b83d17c/bumuganoluvototo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a5130d4-3e1b-4b66-87c1-816a918bd4db/baladosipamugureges.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 extracted file (font_00_sfnt_off0000c8b3.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B3 5732 bytes
SHA-256: 97d8cc0531ab8b908ab9bacc811b06a7144aff19a7f7712c7d394574036731aa
font_01_sfnt_off0000dc2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2B 10304 bytes
SHA-256: 320d0a61b901550157135fc9e40099e8540b307650845145be6fd67f1bddb085