Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1bae9888ed3c349…

MALICIOUS

PDF

102.1 KB Created: 2020-08-09 01:33:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 411679575749187e83673099844684d2 SHA-1: 2d5f1bb0c20275c1a8908f97289e4cfca6325e3c SHA-256: b1bae9888ed3c3493eddef4627c6c141fb252ebd217ff6c28292700df7d7afa2
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The file also contains a large number of links to external PDFs, many hosted on Shopify, which is characteristic of SEO link farm abuse to improve search engine ranking for 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=frankfurt+altstadt+er%25C3%25B6ffnung+programm+pdf In PDF document text
    • http://files.acupunctureworksvt.com/uploads/1/3/1/6/131637419/kiroweroz-borotoburugo.pdfIn PDF document text
    • http://files.littlerippahaven.org/uploads/1/3/0/8/130874296/7922cabb.pdfIn PDF document text
    • http://files.ojk9coach.com/uploads/1/3/0/9/130969577/e1a28ddf9322.pdfIn PDF document text
    • http://files.davidsonhc.com/uploads/1/3/0/9/130968950/mepezo-tuvegajunuv.pdfIn PDF document text
    • http://files.theyarnvault.com/uploads/1/3/2/7/132740805/3276293.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/1/0432/5857/7046/files/65374313817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6133/0591/files/wujokenazisufulobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/fake_id_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1024/4260/files/the_beatles_complete_scores_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/14742326357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28851780814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/74422869534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7394/6275/files/zozul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1924/5467/files/24725169797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/basic_english_sentences_with_tamil_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6103/5686/files/binimodid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4339/7525/files/alphabet_english_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.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_off00015035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15035 5516 bytes
SHA-256: 42cf44cc28601395be9b001fef3d1fd645b3b6875dd96f26c35bbe37be25526c
font_01_sfnt_off000162b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162B3 11800 bytes
SHA-256: da3e261e7e469a23b4571373537b177ac478762f9f04b0e659d954dfb136fa32

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