Malicious PDF — malware analysis report

Static analysis result for SHA-256 854c560412868cb6…

MALICIOUS

PDF

36.3 KB Created: 2020-08-02 19:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ca4515a75ac437b67c5082c937fe408 SHA-1: e42968367f0c6e337c87241615df6fc0980a180c SHA-256: 854c560412868cb65230726227410b710e729dfb00982f1395f8cd76eea0046f
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector at 'https://ttraff.cc/pify?keyword=marine+corps+ring+tone'. This indicates an attempt to lead the user to malicious infrastructure, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the same redirector URL and other PDF links, reinforcing the malicious intent. No scripts were extracted, but the presence of numerous links suggests a link farm or phishing lure.

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=marine+corps+ring+tone In PDF document text
    • http://files.namvetscolumbus.org/uploads/1/3/2/6/132695361/6373637.pdfIn PDF document text
    • http://files.pittsburghcatchwrestling.com/uploads/1/3/0/9/130969160/xozigitojiwukob.pdfIn PDF document text
    • http://files.maconmedicalgroup.com/uploads/1/3/1/6/131636903/wovanobiwemejexojij.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/1/0433/0923/6374/files/92837222284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/da_1687_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/xijotokinezuzojofogemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7258/4870/files/piwesukapomipalizas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sujufizolotedugogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/xevilekebixiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/bafeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/pijukozewofemarukifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/31069617292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.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 1

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_off00005253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5253 5076 bytes
SHA-256: 696c5429d61fbd2ca0ab925e38ca958076c80a75fef1503c9e07090f66691f4a
font_01_sfnt_off000063ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AD 9716 bytes
SHA-256: 65bcb2b43a09de386ad366e680a1f299f50f81241b54bf95e5c6d76c543f3902

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