Malicious PDF — malware analysis report

Static analysis result for SHA-256 978279c087050ebe…

MALICIOUS

PDF

43.3 KB Created: 2020-08-14 03:34:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 16d181cc1681df858b58f201ef33d2f3 SHA-1: 2169f3c567228547c9bc03543e4d03744de5c6fe SHA-256: 978279c087050ebec9f0fad81446fc78834248b1c184b492d1ac9ef776c09c7f
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links redirects to a known malicious URL, indicating a potential phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=web+browser+app++for+android In PDF document text
    • http://xomizobet.pjpexotics.co.nz/uploads/1/3/2/7/132740405/4181808.pdfIn PDF document text
    • http://files.battlecreekendo.com/uploads/1/3/0/9/130969332/592017.pdfIn PDF document text
    • http://files.antiquestauranga.co.nz/uploads/1/3/1/0/131070146/93e045.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/1/0435/9074/6271/files/tinkers_construct_best_tools.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0364/0999/files/zelujefupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5848/3620/files/difference_between_stack_and_queue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3826/8830/files/42533485896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33540287451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/medakelub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1987/7026/files/rumaremizunavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8268/4318/files/84770167159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/davosefelibawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2401/3722/files/lifamosixanefozivefaj.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 7

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_off0000699b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699B 5248 bytes
SHA-256: 46248fbdeee9cd02518d8eb2af8bc7fad3c7c162d1f2cc93d34e27f4ddde985a
font_01_sfnt_off00007b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9A 10856 bytes
SHA-256: f0404dbd452c4107ecd3472b36ab5dd1c5d710ab813931c4ff9683616e87be95

Open this report in the interactive analyzer, or submit your own file for analysis.