Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f3f2e18ee6ec01…

MALICIOUS

PDF

50.8 KB Created: 2020-08-07 00:26:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b186979781d78f3f127fcd3eb877c42 SHA-1: 31a76e909d71e3deff3f236d698a17304f321cf4 SHA-256: c6f3f2e18ee6ec017eb718936c99979daa9b35c2c6b95bf23ed77a2b9ff77efa
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'. This URL is part of a link farm designed to distribute malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous embedded links, many hosted on Shopify, suggests an attempt to disguise the malicious redirector within a large number of seemingly benign links.

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=calculus+with+applications+9th+edition+solutions+manual+pdf In PDF document text
    • http://files.steelin1.com/uploads/1/3/1/3/131381607/jimonowi-sonazixewozuf-maxanuzalapeja-dimibugigaloleb.pdfIn PDF document text
    • http://files.safeyachtsluperondr.com/uploads/1/3/1/6/131637362/movekixizejokato.pdfIn PDF document text
    • http://files.111-ed.com/uploads/1/3/0/7/130775150/nufunivox.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/1/0432/6726/0582/files/wosevasakerimufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/negulonubivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/nizodelaluwinijipiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/63361014936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/ultimate_skyrim_4._0._5_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/lajalabaverenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/sitibilapivax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0523/8692/files/73939965615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/18878344561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5003/9446/files/high_school_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/nudibulowuzufirosefalax.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 5

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_off0000788c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788C 5452 bytes
SHA-256: 442f8577efe5836790d35c44b68da59531f1ddbafe4159904f004387d39c400d
font_01_sfnt_off00008afd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFD 10948 bytes
SHA-256: a121125a2210cebffb1c615f2bed025252c580c94338470928081926809851d1
font_02_sfnt_off0000afec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFEC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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