Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00c444d94ad12b3…

MALICIOUS

PDF

32.6 KB Created: 2020-08-12 06:18:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f1f1a4d4ac161b84ea193d0efa3ab27 SHA-1: 2b92528bd003bcc554df0f916b7236729d133e2e SHA-256: b00c444d94ad12b38b2c2e0c3b9cba445d685d15ecfb13cf48a0f0248a7e9aad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to the presence of numerous embedded links. One critical heuristic indicates these links point to a known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=ahindra+ghosh+pdf'. Another heuristic flagged it as a PDF link farm, with many links hosted on cdn.shopify.com, likely to disguise the true malicious destination. The document body contains garbled text and embedded URLs, reinforcing the malicious link redirection pattern.

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=ahindra+ghosh+pdf In PDF document text
    • http://files.regencyflats.com/uploads/1/3/1/4/131482941/berixawo.pdfIn PDF document text
    • http://files.videopeople360.com/uploads/1/3/1/6/131637302/4268638.pdfIn PDF document text
    • http://files.gourmetpieguy.com/uploads/1/3/1/4/131407235/8689015.pdfIn PDF document text
    • http://files.thejagwrangler.com/uploads/1/3/2/7/132741476/051d8b4815b.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/1/0434/0921/1549/files/25853700178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6670/3516/files/fawagifubixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1361/1421/files/ruselipolawenomikimuxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/pibederavoxunufezologop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2054/files/access-_control-_allow-_origin_htaccess.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/orbital_gateway_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/13265601650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nazowexoratusitufunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/beginners_guide_to_solidworks_2020_level_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/51539864170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8136/6685/files/basic_capitalization_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/fazukare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7913659608.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_off00004783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4783 5260 bytes
SHA-256: 38b541cf082b7d88422a7e0eda36bdb2fd374797ab58e3af196c4f2019aef797
font_01_sfnt_off00005957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5957 8376 bytes
SHA-256: d4db19c46537520de3a1b511a67a872b13d3f1c76c12cd650948df4850e7924d

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