Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7205de1975eb74…

MALICIOUS

PDF

51.4 KB Created: 2020-10-26 18:47:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: d3fe14405275ccb3a96db65efeda161a SHA-1: 3c53c2f2f85341afa30b890c48dc5b9b15ecf2b9 SHA-256: cd7205de1975eb743ab6b36f0fce60e8a4be68851768896b5ac458d1aed5d1af
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://gettraff.ru/wb?keyword=telugu%20kathalu%20books%20pdf%20free%20download In PDF document text
    • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/zegoli_denemoji.pdfIn PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/duzuroguva_jelawiguk_badolale_menivonalagaj.pdfIn PDF document text
    • https://jugidemavewug.weebly.com/uploads/1/3/4/2/134265355/berilezimeg.pdfIn PDF document text
    • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/6443216.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/kufepe.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/powuwenalapufaxusun.pdfIn PDF document text
    • https://jafakatulo.weebly.com/uploads/1/3/4/3/134353771/rowufibutabum_natukikunow_fowozovoweruzad.pdfIn PDF document text
    • https://kilejotiwig.weebly.com/uploads/1/3/1/4/131406519/pabulabajuxusix.pdfIn PDF document text
    • https://pewovorawegoxuv.weebly.com/uploads/1/3/4/3/134351704/1547382.pdfIn PDF document text
    • https://lujinelux.weebly.com/uploads/1/3/4/3/134361227/xizudefofaru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/memul/allen_test_series_paper_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/85975149411.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef271fd5-e9de-48e4-8201-c81881cae327/72204464943.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30c686b1-1f29-4232-a029-f210184c1d9b/78921189283.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/list_of_bharat_ratna_awardees_till_date.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/rugom.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/fashionary_bag_design_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/woferepiwowezovu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6340 5548 bytes
SHA-256: 8b31bc8401d71ddca86cf0e0ffe58439442b7261d2a76e5ae0b19bcf247fc040
font_01_sfnt_off0000761f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761F 14900 bytes
SHA-256: fdf91a501461c262e5efe7904ad1217f7169fe952b2f143606fa983815f9c158
font_02_sfnt_off00009daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAA 10092 bytes
SHA-256: 2f2a3f4a27878478c0c9ed148cc7e61703f49bcf59442a00746847f3a7b38bd1

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