Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cfd709072f336db…

MALICIOUS

PDF

59.4 KB Created: 2020-08-10 19:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bc04b5b65d294b54bb96f273c85722d SHA-1: 560db4351790a055d85260e6e4b87075e8cd44de SHA-256: 2cfd709072f336dbfd5246d75b3896cf1aff9bb08c020d499c1d26822e094d45
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=narasimha+kavacham+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to lure the user to this malicious site. The presence of numerous other links, including those hosted on Shopify, indicates a potential link farm or SEO spam tactic to obscure the malicious destination.

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=narasimha+kavacham+pdf In PDF document text
    • http://files.middlesexmotorcycle.com/uploads/1/3/0/7/130738993/669168.pdfIn PDF document text
    • http://files.essexstdental.com/uploads/1/3/1/4/131438137/zilotilid.pdfIn PDF document text
    • http://files.wordsfromtheword.com/uploads/1/3/1/6/131636957/9188569.pdfIn PDF document text
    • http://files.ranchobonitos.com/uploads/1/3/2/6/132682110/rakavisojeg-kogisinowevofa-xezavijopawixa-naxexut.pdfIn PDF document text
    • http://files.premiumlimousines.ch/uploads/1/3/1/3/131398117/ruxulemawujuxipa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2491/5359/files/centrifugal_compressor_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2168/9254/files/66082813492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4551/0568/files/mufiwadudiwujemej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/visaxewipusulakurixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3021/files/malepezagitaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/mepisazazefufitogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6331/files/40542707174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5501/3275/files/volumen_corpuscular_medio_bajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/13236605504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/rexemisurunurozuwus.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000734c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734C 5456 bytes
SHA-256: bec819876fcf48402e9a57d7d7f04f4caab0a757ca894bb6379a2b7d66616d62
font_01_sfnt_off000085b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B8 2656 bytes
SHA-256: 1620336da6018abf771a3b64a4739dbc5cc5761e5bcfd31f9568e9163b5e6178
font_02_sfnt_off000090bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BF 2328 bytes
SHA-256: 6d897259d7ab9db79b0dbb16904cd99ff486aa7f4a475590a5d3e44eab6e0eed
font_03_sfnt_off00009b75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B75 2108 bytes
SHA-256: b3976ad28991401f3a7e0d936621f3963ed8fd81aff5bedc9e25cf6548b1959b
font_04_sfnt_off0000a54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA54B 15652 bytes
SHA-256: 6bbb1df99282d2299ffb9eef5e11e27fe7d8963bac0750bcdbaf065159cb5926
font_05_sfnt_off0000d331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD331 2960 bytes
SHA-256: fd5a8ae879eb33205c6d4fe88f9351bfd6e423e8e9b5e64836cb142613c369b3

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