Malicious PDF — malware analysis report

Static analysis result for SHA-256 08c037807957b5e4…

MALICIOUS

PDF

53.2 KB Created: 2020-08-06 21:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 561ffa228b3309ad6fd9c3d7d3f087db SHA-1: 6e945d1d2f0a5f6227bde9b19241dddbc090cc82 SHA-256: 08c037807957b5e4837a2d799ace9a977a3da69826573b81af96032da456d37d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to lure users with promises of free downloads. This suggests a phishing or scam attempt, likely delivered as an attachment.

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.cc/pify?keyword=pancreas+anatomia+e+fisiologia+pdf In PDF document text
    • http://files.illanko.com/uploads/1/3/1/3/131378779/4870057.pdfIn PDF document text
    • http://files.thegolfparadigm.com/uploads/1/3/2/6/132680974/8064855.pdfIn PDF document text
    • http://tuxiwuka.classroomconfessions.net/uploads/1/3/1/3/131383791/5481727.pdfIn PDF document text
    • http://mugitemem.saukprairiehistory.org/uploads/1/3/1/4/131408100/zagiw.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/1/0428/9835/8432/files/banefidofekadozimodomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/orange_marmalade_manga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/thesaurus_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34996744553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9898/7941/files/download_photoshop_cs5_full_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0472/9243/files/91043588293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/557821424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/ardex_na.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/padiwiriwokurifusuvob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/domegakeripadeninem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/wagavinumusesud.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 2

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_off00008310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8310 5264 bytes
SHA-256: 8efecaf512e70de70e21d1d2ec119080cf64f4d8e3ba06e8c1252fa106fb2891
font_01_sfnt_off000094cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94CF 10736 bytes
SHA-256: fc6658cedba1f4259207da975b206314c9f3174e1bc669c074533e805683c9fd
font_02_sfnt_off0000b94f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB94F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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