Malicious PDF — malware analysis report

Static analysis result for SHA-256 327789b1d5ef8c7b…

MALICIOUS

PDF

55.5 KB Created: 2020-08-01 06:55:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fbbdcc77a7f1af1b92ffa6b9fac5aed SHA-1: bdcca5741e6aad6760d4774232df11156323bbc8 SHA-256: 327789b1d5ef8c7b439202cecaf2eca11ba9e53bf55d7b81485ed7deb8fcd3ca
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that is also present in the heuristic firing. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting. The presence of multiple Shopify links indicates a link farm strategy to obscure the final 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=sri+lalitha+sahasranamam+telugu+pdf In PDF document text
    • http://files.sockfetishsocks.com/uploads/1/3/0/7/130776291/5741799.pdfIn PDF document text
    • http://files.discoveration.org/uploads/1/3/1/8/131856516/pidolafusozu_vedusisun_judaselu.pdfIn PDF document text
    • http://files.lucasscholars.org/uploads/1/3/0/9/130969724/c8e45.pdfIn PDF document text
    • http://files.lowefield.co.uk/uploads/1/3/2/6/132695663/kinaferuwin.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/1/0437/7883/4586/files/turtle_beach_drivers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/42774754962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2058/3065/files/kunedogixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3383/files/jquery_if_viewport_width.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/66481539949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/nufififukusekev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/19450214238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4005/files/selenium_python_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7264/files/85329563645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4091/3046/files/zunetusezumijobaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/loxezukuzigigodegapasozik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9304/files/99422323277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/58349913439.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E55 5560 bytes
SHA-256: f3b49a7b41a9fbcd468d45f9e1e98533ef52e42b084fe59fdd45df2659152943
font_01_sfnt_off0000a10d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA10D 16188 bytes
SHA-256: f79b2e083664300309bb0943ca58a39e10911b78e6cad342ac9f7715cd737c35