Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc04ab1186fcd5ef…

MALICIOUS

PDF

49.5 KB Created: 2020-08-02 00:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b2548c301b40d3fcc39ae8eb26bb1084 SHA-1: 9c5a1aa5a329ed3ef175fc8db2a8e75e8bb17a31 SHA-256: fc04ab1186fcd5eff71bdc843d369393979ddd293c92aa0ea697a53f43288558
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text referencing "Mcgraw hill connect answers" and includes the malicious URL. This suggests a phishing or scam attempt to redirect users to malicious infrastructure.

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=mcgraw+hill+connect+answers In PDF document text
    • http://files.asavorytable.com/uploads/1/3/1/3/131397946/d4e6a80e68432c.pdfIn PDF document text
    • http://files.kamediacollection.com/uploads/1/3/0/7/130739835/mirelipuvejuket.pdfIn PDF document text
    • http://files.nortonstphilippottery.co.uk/uploads/1/3/2/6/132681579/nagujotojumajagufoka.pdfIn PDF document text
    • http://files.bilingualplanet.com/uploads/1/3/0/8/130814397/relexekulijugaj-wumaroguguzu-ruwupef-dapukiputon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/31998169982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5090/1402/files/68249587063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2510/4028/files/fajofulaxuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8688/6552/files/vedovovokoxanadepigevugil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1995/9454/files/11339023066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/nebifuwovezusorefeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/5000/files/416072400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8196/5461/files/70003833705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6155/7913/files/14499921442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/rabidowo.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7417 4948 bytes
SHA-256: dd49b2aab05a5b6394a8b28fdf22e1c02d557b8c06ae681633ab8d3457baa096
font_01_sfnt_off000084f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F0 11148 bytes
SHA-256: a13ae4aa49c65f1b66616de3c5f33993a209618078169f1aec2fb9bece6bef26
font_02_sfnt_off0000aaf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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