Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce694c653ac9e754…

MALICIOUS

PDF

38.9 KB Created: 2020-08-19 15:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8a957f0dc91d381a5aac744a3739098 SHA-1: c84f6ef7f0dfe04e5394a026487ebea31e123d78 SHA-256: ce694c653ac9e7541aa501cacccd42b7fb20d82cfdd37d24b6ad528904eb627b
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector, ttraff.cc, which is associated with malicious activity. The document body text, though heavily obfuscated, contains the phrase 'Bluetooth setup for windows 7 free' and the malicious URL, suggesting a lure to download a file. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for the 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.cc/pify?keyword=bluetooth+setup+for+windows+7+free In PDF document text
    • http://files.kenziemack.com/uploads/1/3/1/4/131438464/9176425.pdfIn PDF document text
    • http://linez.herberthowellssociety.com/uploads/1/3/0/9/130969204/46ac95bf33.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/1/0435/1868/9432/files/crazy_cee_lo_green_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8342/files/install_github_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3979/3050/files/korokotefuxetadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4537/0518/files/vogewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/84620168623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7899/1520/files/xalixanidore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/83928025164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7973/7237/files/rozobuxenozavoguvesomano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4535/4663/files/93931500543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nozawilod.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 2

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_off00005bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDA 5140 bytes
SHA-256: 9d52be0d1f316bd7c667dda797b820f85a1d5d14639935e051a6552d10d97229
font_01_sfnt_off00006d6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6C 9988 bytes
SHA-256: ddb8b4e6e4783eece00b33af54286f6f20ab1ea942adf5907cae86f1473d465b

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