Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cf652baa0549ab3…

MALICIOUS

PDF

33.8 KB Created: 2020-08-01 21:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46ccbba3d33cf8398ef88ba6b4fd8bee SHA-1: 0634bd23a2ed378c0920e3e3bcacfec99490ef5e SHA-256: 1cf652baa0549ab3f382f5457364bcc519669718f2e13c8db5d376cd1aa20b82
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=2007+dodge+caliber+owner%2527+s+manual'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure under the guise of providing a vehicle manual.

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=2007+dodge+caliber+owner%2527+s+manual In PDF document text
    • http://files.tastytemptationsllc.com/uploads/1/3/2/6/132680994/1304423.pdfIn PDF document text
    • http://files.blackcowltd.com/uploads/1/3/1/4/131453267/5358489.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/1/0428/9835/8432/files/rosetotirumeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0765/5579/files/25927948782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/84408473420.pdfIn PDF document text
    • http://files.lkois.people.ua.edu/uploads/1/3/2/8/132814900/melajegaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/jetadizexawokutewofomuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5939/6254/files/19285848956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/vuwuxefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2249/1541/files/dmv_license_renewal_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/57361489543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/70215346135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32296476761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0769/7305/files/16143643216.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_off0000470f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470F 5784 bytes
SHA-256: 0532fa41008b06047c580d5de92bd359197934407b160f826e4351e63f5e58ee
font_01_sfnt_off00005ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC0 9264 bytes
SHA-256: 57276f59e150cdc8dc2adafe51ff8798d8a5c823b7317f896c3ef0714f9bad84

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