Malicious PDF — malware analysis report

Static analysis result for SHA-256 39140f3ffd0ba383…

MALICIOUS

PDF

47.9 KB Created: 2020-07-26 20:51:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 372241c1b3a58606435c61eba0000fef SHA-1: 004e9ce59ef91abd5e36f68191ea58722cfdfbed SHA-256: 39140f3ffd0ba38380a6701a83a4fff59ea0a9f61ce2b822ea59d11d9b120dd8
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 a PDF link farm with numerous external links, many hosted on Shopify, suggesting an attempt to distribute or obscure malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text related to 'allow pop ups chrome android', which aligns with a lure to trick users into clicking malicious 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=allow+pop+ups+chrome+android In PDF document text
    • http://files.cgaynor.com/uploads/1/3/1/4/131454190/3574304.pdfIn PDF document text
    • http://files.citybeerwebstore.com/uploads/1/3/2/8/132814980/2716393.pdfIn PDF document text
    • http://files.slocampnpack.com/uploads/1/3/2/8/132814791/xulekudefapu-gozom.pdfIn PDF document text
    • http://files.pioneervalleywriters.org/uploads/1/3/1/4/131437044/pururis.pdfIn PDF document text
    • http://files.nicolereddingtonart.com/uploads/1/3/1/0/131070325/kebesusami.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/1/0429/6327/1833/files/74225619568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/59868026076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/wesunegalagazovebenok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/30315700999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/68633465339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3120/7837/files/54652087413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4971/3817/files/waloneseterusoxinijewuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/lesarodeloditojifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/dekaxoliminikowomugizaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/99264289431.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_off00007579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7579 5196 bytes
SHA-256: 84acdd30c1c4f1c90d3ddcab0fe1e9a40b4ea3d13accb4becf3abd6c8bd1595f
font_01_sfnt_off000086f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F7 13744 bytes
SHA-256: 147d844cc778b3bd17d24ad668c7465ab507087d97f0f601dd9b52433b51bbbe

Open this report in the interactive analyzer, or submit your own file for analysis.