Malicious PDF — malware analysis report

Static analysis result for SHA-256 52d0a395b678b573…

MALICIOUS

PDF

50.4 KB Created: 2020-08-30 03:03:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: adfed1515af361a37fc315a23a2d50ac SHA-1: 2d3b2cd613b66d3379e3b8977f80b093c70d99df SHA-256: 52d0a395b678b5736c21b383c32fc0da17d5d4057c08f14c31fa14843a4488a2
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. No scripts were extracted, and the family is unknown due to the lack of specific indicators.

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/wix?keyword=subtraction+with+regrouping+worksheets+5th+grade In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/0aab01_4f4f57511ebc464aa7644b79801791ac.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0a052f_d4c09d70f56b47b19c697d55ecc348a1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_01138b9847b64762b35bb299ae6ebf02.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_15d987383e264efbaaf12855d5cf5ee2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/af0aa9_ba700c2e31394eb8883f05616b019a47.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f6b64974eaf54542941a3648d5c078bc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ce14f3_e128f845a5304e52a37e67d4c4e4c556.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/97368a_1a6196ef96544be382836689e36e7ad2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1ce61f72d0114a4e804a390d3b526560.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ac72e0_b2a155673b454b76b2755ea0683cbdcc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4930/2693/files/16413943942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/pulajofejuwofifituxadil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0880/3495/files/mexapesadifupaledelaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3795/7023/files/garixupozikax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5106/4228/files/banksman_hand_signals.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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
font_00_sfnt_off0000624e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624E 5828 bytes
SHA-256: e58f3b04a1739b07723350ef8b19b39390fbc482e3a4c500cf27571c7fc8cb31
font_01_sfnt_off00007625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7625 16060 bytes
SHA-256: fc6591d7f365b49a40503d12fafb5064d277cc4a2db3e62fc72c7d8d8bfac9ca
font_02_sfnt_off0000a7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7C9 16096 bytes
SHA-256: 2fa4f296fe9e38b1bea2264e65e06c45fbbf4edfcb32b68fd436b1108ab95b01

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