Malicious PDF — malware analysis report

Static analysis result for SHA-256 676c9aeb84393cb4…

MALICIOUS

PDF

42.3 KB Created: 2020-08-16 21:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45c052faecdc20112842a12c49ff1a01 SHA-1: e0216e9daf27b9a024422263a1a87075bbaeac70 SHA-256: 676c9aeb84393cb49af3739566835923d53a11349953f628d46e7c7ea907b187
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service known for malicious activity. The primary malicious link, https://ttraff.com/pify?keyword=children%2527+s+mardi+gras+mask+template, is designed to lead users to potentially harmful content. The document body, though heavily obfuscated, contains references to the same malicious URL, reinforcing the lure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=children%2527+s+mardi+gras+mask+template In PDF document text
    • http://files.lucianamagdalena.com/uploads/1/3/2/3/132302944/a4341e567fc0f27.pdfIn PDF document text
    • http://files.longbeachcoastalchallenge.com/uploads/1/3/0/7/130739027/nagisutada.pdfIn PDF document text
    • http://puforok.thechildrenscouncil.org/uploads/1/3/0/7/130775451/mokakim.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/1/0433/6710/4668/files/womupojipevifowogimefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/jupofixidasojose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/a_knight_s_tale_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3041/files/54135866441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7014/4166/files/9395356799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/diagnosa_keperawatan_pneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/bolawirezasoxozisafow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9845/4693/files/26287257679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/37934033161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/gurozadibit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3290/1789/files/airway_management_in_maxillofacial_trauma.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F16 5376 bytes
SHA-256: 1382a9c33c6482811b7f37e6739c6bdec2bb827f4a4fd1715519661d9a50a929
font_01_sfnt_off00007128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7128 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 10060 bytes
SHA-256: 9966832e16db44df975afbe5fc8fe8f33dba2957109e75a702dbbe1c6d1a94f2

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