Malicious PDF — malware analysis report

Static analysis result for SHA-256 b73c15715f62a6bb…

MALICIOUS

PDF

34.8 KB Created: 2020-08-22 12:41:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6f1695239f7a23a3fbe6a4672b313f6 SHA-1: 3961f1c05f1c2041a96b85cbe0e839b261efc12e SHA-256: b73c15715f62a6bb54325da74ede8a3a150ac421baee005acb9c42cc7006afbf
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm designed to manipulate search engine results or distribute malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body contains garbled text but includes the same suspicious URL, reinforcing its role in the attack.

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=slip+sheets+for+pallets+uline In PDF document text
    • http://files.trentsoyster.com/uploads/1/3/1/4/131483281/f07e9.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/1/0434/6655/5557/files/vibawigetogomupikaveke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/18242295661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/41242063985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/jofew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3144/5149/files/1._03_healthcare_finance_crossword_handout_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/cessna_t210m_poh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/16533385068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6146/9599/files/3556853685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7328/8869/files/pumivabinasadodugowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/funuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8106/2805/files/61363552864.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_off00004a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A7D 5092 bytes
SHA-256: 8e4097bb94ffc289be522db5cd706ece97a867961d21f83887d235ecffd80828
font_01_sfnt_off00005bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC1 10256 bytes
SHA-256: ff625881af019eded1c978db23790e504088a77a4b4f3fff19095a28de6680c5

Open this report in the interactive analyzer, or submit your own file for analysis.