Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fadcb8f370fbcbe…

MALICIOUS

PDF

43.4 KB Created: 2020-08-09 04:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46b74d57708eea9a15a4ed8a7784df16 SHA-1: d8a6e2e231f938122c75f87ecc6811ef462f3d11 SHA-256: 6fadcb8f370fbcbee459bb30a17021f84b06ffb245f3ab01be43949d2b58a6ef
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=autocad+electrical+2020+user+manual+pdf, which is used to lure victims into downloading further malicious content. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-optimized links points to a phishing or malware distribution scheme.

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=autocad+electrical+2020+user+manual+pdf In PDF document text
    • http://files.cedarvalleyhandyman.com/uploads/1/3/1/8/131856191/rukopivirogapi.pdfIn PDF document text
    • http://files.iconbiketours.com/uploads/1/3/1/4/131482886/6922958.pdfIn PDF document text
    • http://files.sacred-reiki-tarot.com/uploads/1/3/1/0/131070842/7586084.pdfIn PDF document text
    • http://files.ideaingramhills.com/uploads/1/3/1/4/131406036/nitenidomewofab.pdfIn PDF document text
    • http://files.stjosephfortjennings.org/uploads/1/3/0/7/130739747/7448140.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/1/0430/0131/5491/files/6391832598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/nofiseni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/eldritch_knight_5e_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/wilesose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6908/6619/files/59124112194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/piwopowuverowesigal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/vifivenaxulokodojegezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5134/3269/files/pakuvorije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9970/8821/files/51383655953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/4263188579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6957/0198/files/watanizuzogoviguroku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.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 8

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_off00006509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6509 5564 bytes
SHA-256: e3ede96ddb57d8152b9eba23a3b2ff200c3be427fc11f70e18ff8f0ca15e6e10
font_01_sfnt_off000077dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DC 12424 bytes
SHA-256: 92f02992d1abe345b5dd288911ead7eeeb4d04e29ddebe28bb3198ebd327918f

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