Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2cbc9194462f948…

MALICIOUS

PDF

52.8 KB Created: 2020-08-04 14:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54880cea174d243a2476415ba373fe8a SHA-1: 85efcd65dbfc27c9a95df23bd755a5930a93ec14 SHA-256: b2cbc9194462f948faa3c91acacf80d8b8ed2536f54747bfa0fb9986f3599d99
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'cctv cable installation guide'. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute 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=cctv+cable+installation+guide+pdf In PDF document text
    • http://files.thedemeterfoundation.com/uploads/1/3/1/4/131483955/6126794.pdfIn PDF document text
    • http://files.kathrynshriver.com/uploads/1/3/1/8/131871535/zajadov.pdfIn PDF document text
    • http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.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/1/0437/4138/0769/files/nebupug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/51280968594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/mass_effect_2_zaeed_dlc_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9440/8352/files/33996429639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/prescription_for_nutritional_healing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/hacked_tower_defence_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/rizuzefizewenozomokitefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/wexipumiwamus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/nidupat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9949/6351/files/rabadagute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7668/1882/files/musenadefizeduk.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_off00009155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9155 5332 bytes
SHA-256: f93ad6fef0166030e2bf3838cbc6e03eaec8d76d9ae93d01d2228e58155d3043
font_01_sfnt_off0000a38d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA38D 10192 bytes
SHA-256: e3227a646ebd4d600f4ab226e867990d4243336ea76e6c89cd652b328d119b99

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