Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c362f78b14d84bb…

MALICIOUS

PDF

35.0 KB Created: 2020-08-22 16:28:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 842a54693c4ec3c3e70618c44a151d3c SHA-1: c553297c83e729199b4bfda67118cfc120d6e44b SHA-256: 5c362f78b14d84bb31eeaaff19374cbca3eb6022b0649678138f56dd89a1ddd3
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with a link farm and SEO spam. The document body, though heavily obfuscated, contains text that appears to be a lure for 'emotional videos in telugu' and includes the malicious redirector URL. This suggests an attempt to trick users into visiting a malicious site, likely for phishing or malware distribution.

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=emotional+videos+in+telugu In PDF document text
    • http://files.cccaabbrefs.com/uploads/1/3/0/7/130740256/8886256.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/1/0429/8381/7375/files/84720875928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/44862935851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/78253051287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4659/1903/files/oxford_bookworms_factfiles_recycling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/totuxogowizilag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1869/8400/files/gate_2020_brochure_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1026/9082/files/45365905876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0900/5978/files/dububilubate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1930/files/galevijugetoboxofasite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2764/9944/files/zavom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4160/4263/files/82606630041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/62568138989.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 3

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_off00004ac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC6 5064 bytes
SHA-256: fcd5e37e541d9e84fecd7f9e90b0a812b9c8798e0189adcd273030efb622210e
font_01_sfnt_off00005bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF4 10448 bytes
SHA-256: abe8b542400f2e6f101606ab17590d1a0d529cab1efc1f56a23153f2d6028006

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