Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd71c2e7a4ed8a20…

MALICIOUS

PDF

41.6 KB Created: 2020-08-17 04:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69a0725620550a51bbbbc9009a32914f SHA-1: d7f0f165a890e57835d3dd8cb082b46967588216 SHA-256: dd71c2e7a4ed8a20d4bdb217af072742798f1590e0bd0daf036f6064841cdff7
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though partially corrupted, contains a URL that appears to be part of a link farm designed to manipulate search engine results. The primary malicious URL identified is https://ttraff.cc/pify?keyword=rustoleum+cabinet+transformations+espresso+before+and+after, which is likely used to redirect users to a malicious site.

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=rustoleum+cabinet+transformations+espresso+before+and+after In PDF document text
    • http://tifinano.tutorslink123.com/uploads/1/3/0/8/130814328/zulawanuxaj_vanubol_maxowe_bipawoma.pdfIn PDF document text
    • http://files.booksplusws.com/uploads/1/3/1/3/131398374/kanaf.pdfIn PDF document text
    • http://files.thatclass.org/uploads/1/3/1/4/131406060/2381260.pdfIn PDF document text
    • http://files.mr-stevens.com/uploads/1/3/0/7/130776864/zoxakaso.pdfIn PDF document text
    • http://files.queridouniverso.com/uploads/1/3/1/3/131381614/1d12eec.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/1/0431/6240/2967/files/printable_animal_coloring_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0438/5690/files/54482096215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/mabodokarunofubibuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7424/7063/files/esl_business_english_conversation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/important_days_theme_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/roll_up_banner_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/58180201359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4640/2213/files/gojidadarekigugope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0813/files/100_accounting_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/34469494554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/bejin.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_off0000627f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627F 5448 bytes
SHA-256: aaf11b97679fa079c76d8ce8695b297d1a713d214bc06bfd5b85c5675252a1b1
font_01_sfnt_off000074ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EC 10592 bytes
SHA-256: 283a42f4273f46b5cd41baebabcdb476f431594d9d0b95bc0479f8240922df98

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