Malicious PDF — malware analysis report

Static analysis result for SHA-256 07198c3aaaeb8dde…

MALICIOUS

PDF

39.9 KB Created: 2020-08-01 20:18:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dcadd5196c139aeea711540329441923 SHA-1: eb2ecc1e2a86d9030cbc5fdd36dd4ab89fe360c0 SHA-256: 07198c3aaaeb8dde54628218b93c552198607be6a6a56b66ca5a6891e5b739fc
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary redirector URL identified as malicious. The document body, though partially corrupted, references "Windows 8.1 product key" and the malicious URL, suggesting a lure for phishing or malware. The presence of numerous external PDF links further indicates a link farm or SEO abuse tactic. 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=windows+8.+1+product+key In PDF document text
    • http://files.newrichmond.org/uploads/1/3/0/7/130739015/megena-moziji.pdfIn PDF document text
    • http://files.kintsugigoldenhealing.com/uploads/1/3/1/1/131163904/1227239.pdfIn PDF document text
    • http://files.afalive.com/uploads/1/3/0/8/130814467/3ffd81248fbb6.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/1/0430/2045/1997/files/30299365317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0781/1482/files/kiwotaziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/56848896104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/pufadotadifukonoxum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7473/9607/files/56575534177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/49171884964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/4031239253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/munuzajutajamarigeregutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6359/1583/files/mamejafereroruja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4993/files/zafokitinetuxozusenobuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/jodutapolane.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 6

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_off00005dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD1 5372 bytes
SHA-256: 0b141d2cc6ea4c9abeae7705d9243a597b11283988e5257417ad3b0ab557e1e1
font_01_sfnt_off00007061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7061 10060 bytes
SHA-256: 571a7bc5ee7d1c8db7d50dcb27471e584a05e5b21a693a72556e555ec86952ad

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