Malicious PDF — malware analysis report

Static analysis result for SHA-256 acb19bd7c98b1f07…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 02:58:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ff63f69866e680063ae5f59738ff3d6 SHA-1: aeb17762ee96de1a79bace9799a811f00378397f SHA-256: acb19bd7c98b1f07fb8213ca523d291c7100f693644e58dc816651d0e59b3d4d
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a free website analysis report. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=website+analysis+report+online+free In PDF document text
    • http://vupaxefed.legacyministries.info/uploads/1/3/1/4/131483245/7674.pdfIn PDF document text
    • http://files.revenuerampup.com/uploads/1/3/2/3/132303270/pubira-ninikoxareva-kuwitek-bogafezeworo.pdfIn PDF document text
    • http://files.delmarinelloart.com/uploads/1/3/1/4/131406369/revejape-tevozozaru-dezopufa-javijebetitigik.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/1/0431/2711/1841/files/32350973203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6419/7273/files/36445053879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/81901479243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6284/5859/files/lexisin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/sojipagovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5049/2323/files/54465815286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/kutosulifobijefuvixurife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/sociolinguistics_by_hudson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6937/2576/files/skf_ball_bearings_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/pdf_to_word_converter_editable_text_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8935/3109/files/fall_of_ottoman_empire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1348/8292/files/42237485898.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_off0000639d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639D 5152 bytes
SHA-256: 597d8398e3fa4570208487a47882d7e165c85ca583e8ce43817c008cf83504b9
font_01_sfnt_off0000753a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753A 10084 bytes
SHA-256: 6305ff4200a033dbe1cb5ec5f42629899d1bfe66a18affd0931b308c28873124

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