Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb3504e9be8f6d3e…

MALICIOUS

PDF

63.7 KB Created: 2020-08-15 00:14:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b11f0e856f3a7c4dbc5272af951d5c1a SHA-1: 6f256a0b3b27360c23025981351aa9855d2dcd49 SHA-256: bb3504e9be8f6d3e26542e91eccdd4e743bcb641d44557bd8cf625789d309d5b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=cards+against+humanity+expansion+pdf+german In PDF document text
    • http://xamitita.yosefrefaeli.com/uploads/1/3/1/4/131406717/15865500aab32be.pdfIn PDF document text
    • http://files.lonestarbee.com/uploads/1/3/1/4/131453984/wuduzinemoke.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/1/0430/4535/5674/files/34150468959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/analects_of_confucius_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9944/5661/files/13210237583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8972/1496/files/the_game_pickup_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4845/8647/files/awk_command_in_unix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8556/7902/files/56855829252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/20901749784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/jakefosefepexewozumokuke.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

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_off0000a48a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA48A 5500 bytes
SHA-256: 11b4acd776612e12a5b00de13772708e8296d7d9eb510a4279d028d50ccdb20b
font_01_sfnt_off0000b71f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB71F 11108 bytes
SHA-256: 5cc0e02be40e4199ed532b9eb1a0442412a08f71d74f99f2992982bb12d9d78c
font_02_sfnt_off0000dd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD28 16072 bytes
SHA-256: 9f5c39b122af328b89576799afa35494b2b074404cd229a8255c6cd1781c5d44

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