Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57bed99d2ec3eb3…

MALICIOUS

PDF

37.4 KB Created: 2020-08-09 00:20:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffd944aef7f62907d3871f5dd29970a7 SHA-1: 795fade44c9cf90600b27a1deace843aaa005b8b SHA-256: d57bed99d2ec3eb3e1a121e6a1c915e781e4a51f45b16b32f555cd6482998220
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including a critical redirector link to ttraff.cc, suggesting a phishing or content-luring attempt. The document body, though heavily obfuscated, contains text related to 'pdf download' and the malicious URL, reinforcing the attack pattern. The presence of a mass external PDF link farm further indicates malicious intent to distribute or redirect users to potentially harmful content.

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=novel+ceros+dan+batozar+pdf+download In PDF document text
    • http://files.geraldinemalone.ca/uploads/1/3/2/6/132681969/wetivuwozilamix.pdfIn PDF document text
    • http://talobaris.infosphereab.com/uploads/1/3/1/3/131383283/nudowiw.pdfIn PDF document text
    • http://files.cocopahfarms.com/uploads/1/3/1/8/131856771/fovuxun-punoliduwuvuz-mubuwakikifugab-bejojidosoru.pdfIn PDF document text
    • http://files.whenthingsgowrongmovie.com/uploads/1/3/1/3/131380258/9541314.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/1/0432/6424/5925/files/62534331217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8427/4081/files/ropixozejijunirasuwuzage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8345/4872/files/refego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zexula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/76787502427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/dadulivizosag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5634/0890/files/16019715857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2428/4824/files/mixogatedes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/62504875119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0056/9753/files/wefinezapatexumex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/99147137967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9313/9364/files/dodge_ram_service_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/debuv.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 4

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_off000052fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52FD 5460 bytes
SHA-256: 167fbe589d5170bff5ca1d3f8c1ddf75470e83276d539307cc53d49fbd5617e3
font_01_sfnt_off000065be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BE 10148 bytes
SHA-256: 53381541171ae641590e3e801e19bec7790be6fcd48ddaf90fb35322a7fc85d1

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