Malicious PDF — malware analysis report

Static analysis result for SHA-256 b824cca7b6c41a41…

MALICIOUS

PDF

40.9 KB Created: 2020-07-31 20:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5987c5a70ed53da65a4051c664f6c99f SHA-1: b923cd10f63be08c51439e37335adeff75f7f960 SHA-256: b824cca7b6c41a41eea151a70503413bb1b093390ed111c9275ad0e6c36abd2d
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the URL and appears to be a lure for a Maryland driver's manual. The file also exhibits a PDF link farm heuristic, indicating it contains numerous external links, with the primary one being to a Shopify domain. No scripts were extracted from this sample.

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=maryland+manual+del+conductor In PDF document text
    • http://files.campbellcounseling.org/uploads/1/3/0/8/130813906/lipiv.pdfIn PDF document text
    • http://files.austinsbestphotobooths.com/uploads/1/3/0/8/130873708/nulawi.pdfIn PDF document text
    • http://files.inspiralpathways.com/uploads/1/3/0/9/130969708/manukasuda.pdfIn PDF document text
    • http://files.thegatheringplacestudioandshop.com/uploads/1/3/1/0/131070851/4122730.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/1/0428/9835/8432/files/2857609843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/gisiladowefodejagejawiben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6345/9496/files/sakelulotiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74251218784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/nedifuxedebewikasibuwolex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/22725835568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/gepipuzisiwajekesomafef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/96636464096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5681/6540/files/17826749349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/43624437294.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E7 5012 bytes
SHA-256: 33f7b24594b1161223caf6ae2ec51080b5caf590c783241465be4cc83717d77a
font_01_sfnt_off000072ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72EE 10624 bytes
SHA-256: 2e0c2dd0043a94c99f239cebe53f114f954d27903ee8f4b23e3051b096f94754

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