Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17e4b57bc5a6f8a…

MALICIOUS

PDF

38.7 KB Created: 2020-08-02 05:21:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6192ba78c1bd38f085958333b252a61e SHA-1: f918849f6c07717ce87c487a5ea621613176e3cf SHA-256: a17e4b57bc5a6f8a38daf58fb246b24e0fb81d640802afe2fc88e2967e12920a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains hosting other PDFs. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=pattern+magic+2+pdf'. This suggests the document is designed to lure users into clicking through a series of links, ultimately leading them to malicious content.

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=pattern+magic+2+pdf In PDF document text
    • http://files.specialedu4parents.com/uploads/1/3/1/6/131606368/liwatinemi.pdfIn PDF document text
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdfIn PDF document text
    • http://files.expertcharlottelocksmith.com/uploads/1/3/0/7/130775504/117317fa.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/1/0428/1047/4663/files/46109071807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/gefowepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/93652773280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5539/0630/files/86725219962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/c_makefile_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9812/9062/files/63855499172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3188/8021/files/75535560473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1116/2790/files/harold_jacobs_geometry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/word_ctrl_f9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8359/files/xolemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/vinogagamojewexozuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/1976542304.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_off000058c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C3 5396 bytes
SHA-256: 918a330f6dd95250a86346f5eb63493e04ac430bcc3ecaa39bd43ffbb0e309e6
font_01_sfnt_off00006b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B11 10352 bytes
SHA-256: 8e44dc68103ca9db6fa19622a5be0b67621837f1e7afd11d3a5acff3c821786a

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