Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42262f39052f0ee…

MALICIOUS

PDF

44.5 KB Created: 2020-08-23 05:50:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04dc156d85e23777e2e857113c750b39 SHA-1: bc62d13c79d345b3c6486d794a09e5e9e1762bb8 SHA-256: c42262f39052f0ee8edf6ca371057308c62821712398556b5b22feb7bba3d809
194 Risk Score

Malware Insights

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

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 ML classifier strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content or phishing pages.

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=psychology+big+ideas+simply+explained+pdf In PDF document text
    • http://dovamip.modicash.nl/uploads/1/3/1/1/131163667/e41ae911a30d.pdfIn PDF document text
    • http://perabew.carlosvillezfineart.com/uploads/1/3/1/0/131070719/zexevodazop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9801/3857/files/maplestory_2019_reboot_training_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7517/3528/files/laxodoxixunerowezemibad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4095/5803/files/block_abdominal_ultrasound_step_by_step.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/obc_caste_certificate_form_assam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/zujatoxavafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9934/0448/files/arya_movie_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/35775729279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9298/6280/files/sino_sino_ang_mga_bayani_ng_pilipinas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/tokonet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6436/1113/files/risetolorigipopigo.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 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6124 5492 bytes
SHA-256: 6248cbd964a507428fcd881c88dc20f2284b97e8064188f95bb6f0336b70669b
font_01_sfnt_off000073ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AC 10352 bytes
SHA-256: 6d026912dbb9d21ffc79c884f595e1e5116a3bcde5bbac772fb3f1826ec98a85
font_02_sfnt_off00009700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9700 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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