Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4802cd58a245f17…

MALICIOUS

PDF

52.4 KB Created: 2020-08-23 21:20:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b510eb42208b0041298fb50680f02cc SHA-1: 2eb959c6f870dd0bcd09427802642ac50a598821 SHA-256: c4802cd58a245f17d41ed7b4b12c326dc71fc1c0524c71efc1264e3982931c71
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded URLs, with at least one pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a phishing or scam attempt. The document body contains garbled text and a URL that appears to be part of the lure.

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://ttraff.ru/pify?keyword=baazigar+movie+songs+pk+free In PDF document text
    • http://files.generationwhycomic.com/uploads/1/3/0/7/130775398/powewuzo.pdfIn PDF document text
    • http://pejefa.achievewe.org/uploads/1/3/2/7/132740930/rogebapinatibo_bodebumirodi.pdfIn PDF document text
    • http://files.elkhartcountylambclub.com/uploads/1/3/1/8/131871829/1289697.pdfIn PDF document text
    • http://files.rephotowv.com/uploads/1/3/1/4/131452740/natudixaxevesi-tabuseliwapurav-lakufuxesen-wofanelexefagav.pdfIn PDF document text
    • http://gozun.thriveslc.org/uploads/1/3/0/8/130814328/migusu_maxolazoxeruj_zewekumerekuxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7791/7090/files/biology_notes_for_class_12_chapter_wise_state_board.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/documento_nacional_abraman_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9641/6161/files/41859732871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/47009047418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1792/files/canevas_de_rdaction_d_un_projet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/arteriovenous_malformation_brain_hereditary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2294/0320/files/kijipeweparometobopibos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/water_bioremediation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/gekow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5386/7427/files/annotate_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0436/1895/files/juduvobumekamami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/30985804765.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_off000089a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A1 5412 bytes
SHA-256: 6ec9e2c309167d15bc90797cc6f147a429c82b5905f3387c1bcb4d07426bfc89
font_01_sfnt_off00009c11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C11 13140 bytes
SHA-256: 08ac82613483f4a88a3eb4ece40f32b5f2468a52c2e1c644b70217d63396ba8b

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