Malicious PDF — malware analysis report

Static analysis result for SHA-256 57c7b1f0b022837b…

MALICIOUS

PDF

33.0 KB Created: 2020-08-20 19:08:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a33c7d78cb45cf8b0b75554bdccafb86 SHA-1: c0bab7a334641fb5dbb10a822c9019da333c3bcd SHA-256: 57c7b1f0b022837bee43f376945b79a9dc15b8253b03494e10925dde73b980e0
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to a URL designed to lure users with 'nutrition information'. This link leads to a known malicious redirector infrastructure. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to disguise malicious content. No scripts were extracted from this sample.

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=beach+club+jimmy+john%2527+s+nutrition+information In PDF document text
    • http://files.erinnloveshealth.com/uploads/1/3/1/4/131407406/61d36fee.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/1/0431/6764/5857/files/kekowapajozokebev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2326/9014/files/validity_and_trustworthiness_in_qualitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4877/8400/files/75638250365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/pifojemimuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4459/2021/files/2020_and_2020_calendar_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2468/5976/files/warowoboderelitufogupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/gakifuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/beats_x_earphones_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/sinarawul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0405/0084/files/bishop_s_candlesticks_short_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5770/8193/files/xatube.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 1

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_off0000423f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x423F 5524 bytes
SHA-256: 3179f1a3a46dd47dfeaf0c2b6fc1de692cdbbdb3f4dee8dd0c654ecb3e2d83e7
font_01_sfnt_off000054ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EF 9560 bytes
SHA-256: b37df06bdd2982a296fe04df6913145a5c6c572883b8fef450cc589e06eb0788

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