Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74472b517c94bd5…

MALICIOUS

PDF

33.0 KB Created: 2020-08-23 13:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b56a11bc80be7f34517bba2660f1961 SHA-1: 51ace38e9a0f1bad5a75ab30a65cc8168c8de0a5 SHA-256: b74472b517c94bd5ba9c6afd2f43c921f422813efe61d0435745a1b563110b47
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=blackmail+2005+video+songs'. It also contains a PDF link farm heuristic, indicating a large number of external links, many hosted on cdn.shopify.com. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site.

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=blackmail+2005+video+songs In PDF document text
    • http://files.goataddictionfarms.com/uploads/1/3/1/8/131857304/bozugebeje.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/1/0433/0687/7080/files/66048758492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/5489/0913/files/furling_genoa_sheet_length.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/99234732568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/0535/4657/files/advertising_id_android_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6939/9452/files/my_verizon_bill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/hammurabi_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2241/2958/files/awas_yojana_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/40694798132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/agile_software_development_principles_patterns_and_practices_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/work_life_balance_policies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/51728094942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/counter_terror_attack_hack_mod_apk.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 2

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_off00004334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4334 5736 bytes
SHA-256: a1b1eea1251c511901c741238fc46f5db4a6e4804632816821470837564b0469
font_01_sfnt_off000056b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B4 9588 bytes
SHA-256: 4b9c5298dfab0df7874792072d898aa55947ea5c821c109604b19d71c8bd6a0c

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