Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2c1de5d8a6d99f…

MALICIOUS

PDF

47.3 KB Created: 2020-08-22 02:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bf6497689e83ce9b510d3e6ee9d978e SHA-1: c2258cb5230435b90da062f81c96d58301e9b29c SHA-256: cd2c1de5d8a6d99f339b75504493c16c4a7daca17d433d20bd0d1e338a655f06
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, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=arizer+extreme+q+user+manual', likely serves as a lure to redirect the user to malicious content. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to benign Shopify URLs, but some to unknown domains. The ML classifier strongly indicated maliciousness.

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=arizer+extreme+q+user+manual In PDF document text
    • http://files.indiangrovechurch.com/uploads/1/3/0/7/130776118/9981949.pdfIn PDF document text
    • http://files.pilates4womenonly.com/uploads/1/3/2/6/132682110/68bbd884.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/1/0428/0428/1511/files/anthropology_study_guide_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/muwanugupipokuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8761/7436/files/zikinifowumutidinefobitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1995/2550/files/96267375044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1990/9794/files/77483041457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4904/9499/files/62513266169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/61625670758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87913440599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/1463062332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/jakejulesumopiwapuravelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/73754407262.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_off00007b68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B68 5064 bytes
SHA-256: 5b169966cdc1232dd05ae71b4bbd4bc7439435cb59050a0bfaa9dcb43b12018c
font_01_sfnt_off00008c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C91 10680 bytes
SHA-256: 1cfcc13a68e87bc942480693c5f7870f35c967faf323911869a4aaebae7b91c7

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