Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d01f4869e7fb7c3…

MALICIOUS

PDF

46.5 KB Created: 2020-08-02 18:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9284d6849ee4bc66fe2e38d86906d550 SHA-1: cd5ee82c253da7109f58583e39940ffeb8195061 SHA-256: 5d01f4869e7fb7c39c180cac232499a7097137f433d6df97e2c50bcf36964a0a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains URLs that are part of this link farm. This indicates a likely attempt to drive traffic to malicious infrastructure, potentially for phishing or malware delivery, aligning with spearphishing attachment tactics. No scripts were extracted, but the embedded links are the primary indicators.

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=running+total+java In PDF document text
    • http://files.phspiratescheer.org/uploads/1/3/2/8/132815045/182c55.pdfIn PDF document text
    • http://files.longbacken.com/uploads/1/3/1/4/131483149/sevepod.pdfIn PDF document text
    • http://files.atmosair-singapore.com/uploads/1/3/1/4/131438056/laluje_rixivafelubono_fevawoperowej_nidogu.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/1/0428/8148/2919/files/59911165360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/39361835754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0711/4391/files/vozeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puliwaxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5144/files/51306626229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1058/7800/files/92754704092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/gugitelidamovow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7087/2986/files/35622784813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/automotive_ignition_system_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/78099951452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/wabunabarukufoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/marukinigaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9534/1723/files/rimav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/49506498266.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 4

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_off00006f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F36 4720 bytes
SHA-256: 6d35fd5ea3e25498f4c0d84d9d616e0d2bf9a54103cc0b3ee7d2331eb20c1917
font_01_sfnt_off00007f70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F70 14856 bytes
SHA-256: 8e1efc0af528f59da2612f3fbc818beb583f86b246f236b21a90906a27c966d4

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