Malicious PDF — malware analysis report

Static analysis result for SHA-256 845214ba439567fd…

MALICIOUS

PDF

59.4 KB Created: 2020-08-05 02:58:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4beacfc3f723026238dba953eb80af3b SHA-1: f849caaf8a67233f395fb335c0573db0c7c1df99 SHA-256: 845214ba439567fd3954bd1cc46decb103c044c4f0838a401a429ed646670a67
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the PDF is designed to redirect users to malicious content, likely for phishing or to download further malware.

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=benoit+mandelbrot+pdf In PDF document text
    • http://files.cosmeticsupport.com/uploads/1/3/0/7/130738524/9214000.pdfIn PDF document text
    • http://files.woutervanheesphotography.com/uploads/1/3/1/3/131379382/pozibemugerila-fuvoxewuzor-tuwiresedotip.pdfIn PDF document text
    • http://files.iamnotmylaundry.com/uploads/1/3/1/8/131858043/df097d0fa2f1c.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/1/0437/4649/2565/files/87754967936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4224/9621/files/bookmarks_in_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/6135145376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/ramanaxulepuludeboder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/85278348929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/421942441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5306/9974/files/bse_odisha_9th_class_history_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.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_off0000a8e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8E2 5200 bytes
SHA-256: 73d4558e95cb5458f95fa3ef8cfc7cef51d2061a1d85d331a49b294f339ae8f6
font_01_sfnt_off0000ba6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA6E 11480 bytes
SHA-256: 3b272715f6ef90b75edd020368cbdb61d215a5243fec716376f71a4594093afe

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