Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3a75346de3785ee…

MALICIOUS

PDF

57.0 KB Created: 2020-08-29 15:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd4a03be72680aadc9e164547c3e520e SHA-1: d3d5c679b971708a292b8ed02ed895052731eee0 SHA-256: d3a75346de3785ee1c6ac861b2c8b7fb1437269d21e049dd6ed07d05c3d60f12
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=cs+1.6+iceworld+indir+gezginler'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file is also flagged by an ML classifier as malicious. The overall pattern suggests a phishing attempt disguised as a download link.

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=cs+1.6+iceworld+indir+gezginler 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/b8c837_a5d7dc1cfffc4c32bd88f0a002258f45.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_58cb417fc5a44158927dfaadcf54042e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0cd9aa6b21b14e98aed75f44e3f86962.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_27a1d5dae6d6492e9c161aa61f94b069.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_be0ec9187d7547169cc924ad384d5531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4376/3862/files/89900795340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4745/1798/files/afrique_berceau_de_l_humanit_dissertation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/autopsy_report_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8554/5124/files/dupawonurigodarudakabibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/19145227645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/caslon_ttf_free.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_off00007c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C05 5184 bytes
SHA-256: 7a20cf8caaa240ea917a0555c6ea0c2477f9ab35a37fdd5bb401f73fc6f7ffcb
font_01_sfnt_off00008dd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD5 16876 bytes
SHA-256: f378cd5a0729b66eae4b74d7aa9aa831cb17d8a26460e8309ae19fd84770b185
font_02_sfnt_off0000bf1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF1C 16332 bytes
SHA-256: 69d723212eb6dd1954cef9b4649bd4df6eb17a6f495b2db8137d34beed6776af

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