Malicious PDF — malware analysis report

Static analysis result for SHA-256 35eea45cd32be6de…

MALICIOUS

PDF

47.2 KB Created: 2020-08-10 12:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a59f2801f138008bd25a400ab1e0bda4 SHA-1: c26345222c348c2e8669311c07db73ce364d9e93 SHA-256: 35eea45cd32be6de36ee58c28769159e5992ef1f1862494d68554d9371eb4b20
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to external resources, a technique often used for SEO spam or to redirect users to malicious sites. The primary malicious link identified is https://ttraff.ru/pify?keyword=oxford+basic+english+vocabulary+pdf, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to the same URLs, reinforcing the attack pattern. No scripts were extracted from this sample.

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.ru/pify?keyword=oxford+basic+english+vocabulary+pdf In PDF document text
    • http://files.littlemonkeyscafe.com.au/uploads/1/3/0/9/130969061/3519794.pdfIn PDF document text
    • http://luvuxepez.tri-lakeschurchofchristtx.com/uploads/1/3/0/8/130813420/c8e9e14.pdfIn PDF document text
    • http://files.juniemoonie.com/uploads/1/3/2/7/132740606/bugab.pdfIn PDF document text
    • http://files.mauiloagear.com/uploads/1/3/1/6/131637104/1619fc5.pdfIn PDF document text
    • http://www.opentle.orgIn 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/1/0428/3265/8588/files/58338053223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8628/9832/files/zadirisum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/13074482097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8411/8184/files/dosawatuzasumuzeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7192/9496/files/67373233164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6133/0591/files/27221609139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5110/3894/files/roselyn_s_c3_a1nchez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/71553840342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9856/1957/files/return_to_the_source_amilcar_cabral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9592/5671/files/fufokokaf.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006957.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6957 13172 bytes
SHA-256: c1cfbb6943160aae198f7043b74e06a7025f83b926c3dc21c9ea2527efb00100
font_00_sfnt_off0000558f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x558F 5816 bytes
SHA-256: 65dca8f2a04934e4579757dfa7a2fd9335fec275cf587dc8bc3d3f1454aab24d
font_02_sfnt_off00008db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB6 9920 bytes
SHA-256: aa539d1b99dd1b1b9e9514b891a76ee149624752c8fe34580fa15b80b6a6de55

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