Malicious PDF — malware analysis report

Static analysis result for SHA-256 d45451814065fe99…

MALICIOUS

PDF

35.1 KB Created: 2020-08-03 09:37:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f113eb7a134d96b8879256e04d7f6b32 SHA-1: db2de3e3bc3a359a0cf9aa1fdbcd0b936a9175f3 SHA-256: d45451814065fe9989586eff49ea56dc2e25df25fde81603b558856a284d7ac0
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, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at https://ttraff.com/pify?keyword=unity+rotate+around. Another critical heuristic identified this as a PDF link farm, with 17 external PDF links. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the malicious redirector URL and several benign-looking PDF links hosted on Shopify.

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=unity+rotate+around In PDF document text
    • http://files.leonoressuite.com/uploads/1/3/0/8/130813317/nejoden-fajodu-pefufebobomoka.pdfIn PDF document text
    • http://files.4everinelectricdreams.com/uploads/1/3/2/6/132695387/5693544.pdfIn PDF document text
    • http://files.texasdispro.com/uploads/1/3/2/6/132681863/vukizi.pdfIn PDF document text
    • http://files.nancyparkinson.com/uploads/1/3/1/4/131406505/8172780.pdfIn PDF document text
    • http://files.orangecountymrc.com/uploads/1/3/2/7/132740327/4136521.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/1/0432/9776/7592/files/24079011782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4500/1115/files/dark_souls_2_mad_warrior.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/lolelunude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/55515823811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4794/2304/files/honda_refrigerant_and_oil_capacity_charts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/5216985828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2022/2627/files/vodejipuzuporisorelup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/66529045088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75815848510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/85834050599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/satopolufiwalije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86187089948.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_off00004db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DB4 4704 bytes
SHA-256: 548a7403e4dd79c47ef5806dbb2a94338699529a0f926f8ecd61a971b3abe615
font_01_sfnt_off00005dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCB 10020 bytes
SHA-256: 750da04c87260ea1df6ba6a2668b00e8ecb929cb054c8a9a220a24cfd00047c2

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