Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ecb61d9e4c7e82b…

MALICIOUS

PDF

55.0 KB Created: 2020-08-25 23:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ad246775bdd8dd9b02646dc2fd6754a SHA-1: 16f709539e2bdd085dc79b77e8e5686fbbd49276 SHA-256: 7ecb61d9e4c7e82b7e209b3b9262451873f6299794ccfbaf57a1ecfcaac91f25
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that leads to this redirector, suggesting a phishing or scam attempt. The presence of a link farm and a redirector indicates an attempt to drive traffic to malicious sites, likely for further exploitation or credential harvesting.

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.cc/pify?keyword=yoga+sutra+of+patanjali+pdf In PDF document text
    • http://files.shopgbmp.org/uploads/1/3/1/1/131164236/lepolubazo-rufunurivofafi-wukumaxu-getavowebetiw.pdfIn PDF document text
    • http://lusij.cacaoteca.com/uploads/1/3/1/4/131482952/xuxubores.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0434/2457/9736/files/wuxozaxisapusinaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/wulame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/basic_english_grammar_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dosadibevejigavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0769/files/napamegodewib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/85460217722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/corel_painter_essentials_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0668/7394/files/leveling_guide_archer_talonro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8258/7037/files/justificatif_de_domicile_edf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7361/7568/files/soveborazul.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000b13d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB13D 9144 bytes
SHA-256: f7c5c578d1e6c3135e56795d28f3c610c4b54ddccd2c3c8e7eaa529e4cae5a22
font_00_sfnt_off0000701f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701F 5244 bytes
SHA-256: 1de03c4bfe3fc0b54898f8deea8fd6a512ff61ad940a4ea0de40798cdcd89d47
font_01_sfnt_off00008207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8207 3772 bytes
SHA-256: b9b49a3c453c53986d7a61d4291ac5a87065d82ff96be43ef0dca6427e6dc540
font_02_sfnt_off00008dab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DAB 11188 bytes
SHA-256: ccb12b921cc3f4892411ca574dcd7cec4b4052b79f520a74119705c851c55b65

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