Malicious PDF — malware analysis report

Static analysis result for SHA-256 67962f991939107f…

MALICIOUS

PDF

48.6 KB Created: 2020-08-03 10:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c6c306087dc95ccbcd7e6ae5e57db5a SHA-1: 8d416d1378e529e4fbf9ae28238eb5443976e0e6 SHA-256: 67962f991939107fe2d9c45574c4855acf94368f358c01c4145dd3cf78759cf6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of links, many pointing to a redirector service (ttraff.com) and others to various Shopify-hosted PDFs. The heuristic firings indicate this is a link farm designed to redirect users, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=java+method+signatures In PDF document text
    • http://files.castropavingconstruction.com/uploads/1/3/1/6/131606003/2086778.pdfIn PDF document text
    • http://files.stickittothestigma.com/uploads/1/3/0/7/130739061/7727767.pdfIn PDF document text
    • http://files.awtprogresstracker.com/uploads/1/3/2/6/132681322/vejunetatixenona.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/1/0435/4097/1674/files/26335884137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5588/1121/files/ligodimoxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/null_in_java.pdfIn 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/1/0428/3337/9487/files/15155250515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6368/0932/files/lowes_waycross_ga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/bofavivanitupejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/lofuwagasisinivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5030/1590/files/46921581495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8788/8535/files/fuck_you_in_morse_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/mujavutijamumevadusav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/nalugipifugevanadumuk.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
🗂 Part of campaign: iomcmborotn.com 3 samples

Related samples 3

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

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Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E99 5256 bytes
SHA-256: 8a737987a1d69c27e4f1af0ff2f4afc4a4b2c913df466898eec87def0f27f7fa
font_01_sfnt_off00009057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9057 10868 bytes
SHA-256: bbc26a447bf506c407f8de9be846c30787e21445f0ca90b1f6b6f8f6ac3543a5

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