Malicious PDF — malware analysis report

Static analysis result for SHA-256 535be0dd858d3363…

MALICIOUS

PDF

40.8 KB Created: 2020-08-03 11:37:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ffd72c9448413ee03e6149f55682444 SHA-1: e9536c51fdba5bc9bea982e55fc6f399e69d76c1 SHA-256: 535be0dd858d3363ab3268212fa067e5cd6fd914eea5780739cb5adee816bccb
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector link to 'https://ttraff.com/pify?keyword=advertising+media+definition+pdf'. This indicates a phishing or redirection attempt to a malicious site. The document body, though heavily obfuscated, contains references to the same URLs, reinforcing the malicious intent.

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=advertising+media+definition+pdf In PDF document text
    • http://files.pierrevanschalkwyk.art/uploads/1/3/1/0/131070737/2420c671897.pdfIn PDF document text
    • http://files.whipperwillridge.com/uploads/1/3/0/7/130739835/kebukubekikotem.pdfIn PDF document text
    • http://files.mentororchestra.com/uploads/1/3/2/8/132814949/143ef7073614e.pdfIn PDF document text
    • http://xotuzifi.epictrails.org/uploads/1/3/0/7/130775868/gexofa.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/1/0429/5419/5097/files/16025691195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/tisolupebuxagazologef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7705/6165/files/87379171335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rofimoluxita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/lubawoniraremaguwixeteb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0930/8829/files/17349791482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/4334493361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9235/1907/files/kigova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/dd-_wrt_r7000_kong.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8685957786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7912/2587/files/the_samurai_s_tale_audiobook.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_off00006102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6102 5376 bytes
SHA-256: 736cc871d199074e1789ce67313b17bed76945f61f931a93f66d59b4397d4b8e
font_01_sfnt_off0000733f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733F 10272 bytes
SHA-256: b3e62e4def7282495165b487e89a395f4984f678bacbb2af8fd371fc1dc9dd24

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