Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2dd07f71db41e33…

MALICIOUS

PDF

44.7 KB Created: 2020-08-17 14:06:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d60c59c15024c14ecfef49ce0386b4d SHA-1: 194b164e7c1ccb99d1efd50f3ac60998dd297721 SHA-256: a2dd07f71db41e332ddb7ef85376c68106152905e51284c1cf0a3b2a5bda7e06
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and benign-looking PDF titles, suggesting a lure to disguise the malicious redirection. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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.com/pify?keyword=angielski+dla+dzieci+%25C4%2587wiczenia+pdf+chomikuj In PDF document text
    • http://jimiw.mosherministries.com/uploads/1/3/1/4/131437850/31395b88.pdfIn PDF document text
    • http://rimadi.themathbutler.com/uploads/1/3/0/8/130813528/8c6fff685782.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/1/0430/3287/1074/files/80370557680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/dubugijakenijobirunagiron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5545/6164/files/cours_architecture_bioclimatique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/73178613315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1808/2711/files/funupevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/fominijun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/raxajikitixuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/a_new_approach_for_filtering_nonlinear_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0107/0247/files/29032389489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1034/files/28361844148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/vikenuxamexuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3789/files/antiemticos_medicamentos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/adobe_acrobat_dc_reduce_file_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/adwords_fundamentals_exam_answers_2018.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_off00006f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4A 5880 bytes
SHA-256: 8ca29b0c0317fd2a0bdfa0e6e5ab36522b46f2869b13a62a1fe828b9505927bb
font_01_sfnt_off00008307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8307 10328 bytes
SHA-256: 3a289b50a2812e4f4e47dfb4d03801faa2624dade4f8917721df6c96c4cba8a5

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