Malicious PDF — malware analysis report

Static analysis result for SHA-256 194e2d8cfcad9474…

MALICIOUS

PDF

43.2 KB Created: 2020-08-23 23:53:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0dde0285fa49b3c148f99ecd21b17a1 SHA-1: 490fec906d1eb5edff06c4c3d84ffbcbb5317552 SHA-256: 194e2d8cfcad94740a2942e781f5fd7b0d919850b99681e3308ded3b34b25583
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one to a known malicious redirector, ttraff.com. This redirector is used in conjunction with SEO tactics to lure users into downloading what appears to be a free program, but is instead a malicious link. The ML classifier strongly indicates maliciousness, and the PDF structure itself is designed to host numerous external links.

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=bpm+program+free In PDF document text
    • http://files.minercountyhistoricalsociety.org/uploads/1/3/1/3/131380467/f313d2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/97845691047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1236/6241/files/juner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3255/9263/files/troy_stetina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/26791802379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/vibokaxebexuzonov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8750/8135/files/36508773754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1287/7462/files/font_chaparral_pro_light_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6583/4658/files/40159792883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0432/1177/files/destination_a1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/59961178831.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 2

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_off0000601e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601E 4612 bytes
SHA-256: 0186a194185ce900264baedaf95ca7d57ad80fa35f60e4aab985f5e7a6738300
font_01_sfnt_off00006fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBF 10060 bytes
SHA-256: 47e69e77bebd642eb2c291dbd55dfce3203b3eb71edcc9d1f5f377249cc8a38b
font_02_sfnt_off00009242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9242 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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