Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c413c039c65754f…

MALICIOUS

PDF

42.0 KB Created: 2020-08-09 00:14:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4aa868d2f3fba8296813c0cbd3477668 SHA-1: 8b37d31229470dad5f111d68c427c05afbce9116 SHA-256: 5c413c039c65754f814518d69ef5f6b71b99f07d04132e91fafa9108a518a0c7
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious domain (ttraff.com). This technique is commonly used in phishing campaigns to trick users into visiting malicious websites. The presence of many external links suggests an attempt to manipulate search engine results or distribute malware through a link farm.

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/pify?keyword=aged+care+award+2020+pdf In PDF document text
    • http://files.jenkeyte.com/uploads/1/3/1/4/131454696/kelejuzisufatogiki.pdfIn PDF document text
    • http://files.alitheajosaphine.com/uploads/1/3/2/6/132695531/jagesaluwutobix.pdfIn PDF document text
    • http://files.pa-di.dk/uploads/1/3/0/8/130813904/dc53324de28202.pdfIn PDF document text
    • http://wokiti.hunterwrestling.com/uploads/1/3/0/8/130874359/xozojuzaz.pdfIn PDF document text
    • http://files.bayareajunkhauling.com/uploads/1/3/1/3/131398386/1359e80d82ef.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/1/0427/4189/1238/files/81587133648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/60098750555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/silent_letters_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0671/2219/files/gupigoram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/99470700967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4836/2399/files/nerowakaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/how_to_install_packages_in_sublime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/77977898292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9376/7832/files/gibbs_learning_by_doing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8885/files/loxufavorajaferut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakawefefaf.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_off000065b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B5 5468 bytes
SHA-256: 4de1aae40c8717db68e260934a0799f7df56388bb1ad449b119c2b2536ede628
font_01_sfnt_off00007875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7875 10208 bytes
SHA-256: bbd68a64d451ca2b8d6c56b85b8923fda119dcc4baf876ead7421292ad91265a

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