Malicious PDF — malware analysis report

Static analysis result for SHA-256 5258c6cdeace66a9…

MALICIOUS

PDF

66.2 KB Created: 2020-08-07 18:41:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e87674ad4343fa54988b63e2d49789cd SHA-1: 82dda231a55fbcaed9cb137a4583b83e66d7b432 SHA-256: 5258c6cdeace66a953e70cdabc896093bb0d04c236ad49f3535d87dfa2c9af4b
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 embedded within the document body, suggesting a social engineering lure to trick the user into clicking it. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be a deceptive link within the document.

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=impact+of+celebrity+endorsement+on+consumer+buying+behaviour+questionnaire+pdf In PDF document text
    • http://rarewumu.southerncrosselearning.com/uploads/1/3/1/3/131398140/gadotakinofozuzodozi.pdfIn PDF document text
    • http://files.slayxshay.com/uploads/1/3/2/6/132681213/pobirijidasowiw.pdfIn PDF document text
    • http://files.hospicecareteam.org/uploads/1/3/1/6/131606346/todereda.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/wixedazatujiguxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/bipedowejikoludutedole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7212/6117/files/72546222702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8987/0491/files/10839152486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/77928086414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6326/3910/files/tears_of_the_dragon_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/morowunilupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/5577403473.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_off0000b9e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9E5 1852 bytes
SHA-256: 948b999cb8494f20dc0a6466b0fa417a95a3964f5397f11ee85dbf63c0958813
font_01_sfnt_off0000c2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2BB 5932 bytes
SHA-256: 3b2851943d4eeaae511ab4513fb05579d6abb4816b99f167616ba595001a8ada
font_02_sfnt_off0000d6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C3 10472 bytes
SHA-256: c9c9fa1fe64208cebd62ef386ae148a5bdab8a1d38be78b7b1957f9063b1ab86

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