Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d356397ced7ec83…

MALICIOUS

PDF

49.3 KB Created: 2020-08-16 22:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a442bbd2aa4b9529f3880545f6305e2 SHA-1: 05715f0cd29c8b62df97aad4e51dbc778d853680 SHA-256: 6d356397ced7ec83de4c6aacd089c44f39f6accc3ced6f084d8b47c13b396ea7
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, appears to be a lure related to 'All wheel drive manual cars for sale'. The presence of a large number of external links suggests an attempt to create a link farm or distribute malicious content through a network of sites.

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=all+wheel+drive+manual+cars+for+sale In PDF document text
    • http://files.amagier.com/uploads/1/3/1/6/131636589/3464899.pdfIn PDF document text
    • http://gegitis.ericgrayjohnson.com/uploads/1/3/2/6/132682347/d717a5b5.pdfIn PDF document text
    • http://files.katieanastas.com/uploads/1/3/1/3/131379830/velametaj.pdfIn PDF document text
    • http://sujadut.freemantherapy.ca/uploads/1/3/1/3/131383544/jemew.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/1/0435/5719/1843/files/beneficios_de_la_zanahoria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/funixukatapufej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/xadadodeziguwumezoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6561/4234/files/26565057032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4646/1855/files/tonopepulaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/27832969425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/memew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/sojagipitiretatejobodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/62935154647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/32357584546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/jebus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/20260446819.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 7

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_off0000838f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 5400 bytes
SHA-256: 4291e43627c432ced57e8185bfebfb4a6381875b3342a84e57b213d53a4e7f66
font_01_sfnt_off000095d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D3 9920 bytes
SHA-256: 1d3fb2c3f1b69d99c4e2a7fd3d3647b6f214ab50a3c9d8623de0313ce9d72a0a

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