Malicious PDF — malware analysis report

Static analysis result for SHA-256 58281f315be7c016…

MALICIOUS

PDF

37.5 KB Created: 2020-08-03 07:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db82eba675ee7da2bbfefe2b7cfef0db SHA-1: 78a3856969e9b7f86db25c59f1d0c098f887cc83 SHA-256: 58281f315be7c016e20e5b10625e3aacd2dc61a272ce7d2f5ac79d47506238e3
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 it is a malicious redirector link farm. The primary URL `https://ttraff.cc/pify?keyword=bobby+valetino+tell+me` is likely used to obscure the final malicious destination. The ML classifier strongly supports the malicious nature of this PDF. 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.cc/pify?keyword=bobby+valetino+tell+me In PDF document text
    • http://files.maritzavives.com/uploads/1/3/2/8/132815346/zotowelew_lotavapibo_zevubebesoden_sodagufeje.pdfIn PDF document text
    • http://files.linderdwyertherapy.com/uploads/1/3/0/7/130739780/jefasojanoti-wavumuma-dimopapugite.pdfIn PDF document text
    • http://files.taraloveperry.com/uploads/1/3/0/9/130969887/6f3c3d5960daf11.pdfIn PDF document text
    • http://files.barnyardventures.org/uploads/1/3/0/7/130776487/2544321.pdfIn PDF document text
    • http://fokovotik.emergefoundation.net/uploads/1/3/1/6/131636664/vunifafijonudeb_bodupojo.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/1/0429/1880/5657/files/52733798580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4468/3419/files/55479211063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7216/7841/files/66814824982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dosoxuwananeworatimuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xidab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1884/4322/files/4546196773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/10979584978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5102/2501/files/klove_prayer_request.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4306/1913/files/wapoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8679/0304/files/91337496770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/futowezatutaket.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_off000054ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AE 4908 bytes
SHA-256: 51daab8a8886b9c023742b405f2b1bd8aeb6a360ea65670a8142c1d08ac1dcde
font_01_sfnt_off00006563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6563 10468 bytes
SHA-256: 571c0d72a8f2475a0b4058ce0dd781e4e53c00974cb2aa62267063e2cbf4dea0

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