Malicious PDF — malware analysis report

Static analysis result for SHA-256 718ca2b5606bb215…

MALICIOUS

PDF

58.9 KB Created: 2020-08-07 03:16:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6273372dc980366fc093e9d8f6d265f9 SHA-1: f0f855623eef321ed64c5be28ef053b1075c33ce SHA-256: 718ca2b5606bb2152a79e4a33f8be607420b9fdf4762fc14e09e8e67bcd847e0
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to trick users into visiting a malicious website, likely for phishing or malware distribution.

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.ru/pify?keyword=aashto+1993+pdf In PDF document text
    • http://wapel.lbcatwateroh.com/uploads/1/3/0/8/130874359/3985831.pdfIn PDF document text
    • http://files.alitheajosaphine.com/uploads/1/3/2/7/132710782/187119.pdfIn PDF document text
    • http://files.xlashbyane.com/uploads/1/3/0/8/130874501/rugemulusitukoxaram.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/1/0428/9075/6259/files/8601102765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6075/6641/files/98166641345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0599/3375/files/fimigop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/roland_barthes_theory_of_the_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/wuxozaxisapusinaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/mopalageroxupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8721/5269/files/kim_mele_methow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7281/4245/files/supofusasoseputexoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5783/1336/files/89323024911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/75740245439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/45611758409.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_off00009e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E5C 5360 bytes
SHA-256: f1a32d550db2da659c704a3e333840232147dddb437e3946d5a2f961c245e3fd
font_01_sfnt_off0000b09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB09A 14504 bytes
SHA-256: 12a60cf5a28573faa4db38fbab05f2341f7845c0e0691f2b0779f5d1546c461c

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