Malicious PDF — malware analysis report

Static analysis result for SHA-256 966a6cba6271af3d…

MALICIOUS

PDF

46.6 KB Created: 2020-08-03 00:04:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19b3cc482c269bb54861a99347efcc2a SHA-1: cb2fa868115765ab1a46c2a28ec13d9a27cdc42d SHA-256: 966a6cba6271af3db7990e2705b63b5ea9e5efa23c9150fb3ecda72c4c3cfde8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure, specifically 'ttraff.com'. Additionally, it contains a large number of external PDF links, many hosted on 'cdn.shopify.com', suggesting a link farm designed to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves redirecting users to potentially harmful 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.com/pify?keyword=lothric+knight+long+spear In PDF document text
    • http://files.carpetcleaningstpete.com/uploads/1/3/2/7/132741375/2956900.pdfIn PDF document text
    • http://files.chebeaguerec.com/uploads/1/3/2/7/132741241/3269077.pdfIn PDF document text
    • http://files.massagerevelstokeayla.com/uploads/1/3/1/4/131483336/38244db497f.pdfIn PDF document text
    • http://files.rigodistrict.com/uploads/1/3/0/9/130968984/11ecdd1ca.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/1/0432/0267/4845/files/kevidarek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4732/0728/files/43863713223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/dutagewubotunefivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/43312371485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6811/3574/files/download_from_dailymotion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/mupedunewukuwebidubopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0306/8068/files/29584762621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/zapatowep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48880371243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/69921409318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/botitimopizamokolaxu.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_off00006d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D71 5200 bytes
SHA-256: b2b220f5ee61f85efd87d5bea874d8575dba46f6ff211d8df2c782778e3dc7bb
font_01_sfnt_off00007f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F26 15244 bytes
SHA-256: e2533c385f2065b83bc41bd5328ee2de50242c621a423df73aa4a2d8bc7869b5

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