Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd04bf9fba535faa…

MALICIOUS

PDF

59.8 KB Created: 2020-08-13 16:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 587bf1b162a88c41fbbf23953021dfa6 SHA-1: f4ecd9f8e996f598517451b409ba9708b85d899f SHA-256: bd04bf9fba535faa3240a8c51d3f95ab4568683aabbac70e0b2e2ebc5e9f742c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, suggests a lure related to 'sources of revenue in nigeria pdf'. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or redirection attempt. No scripts were extracted from this sample.

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/wb?keyword=sources%20of%20revenue%20in%20nigeria%20pdf In PDF document text
    • http://files.egnicksdtp.com/uploads/1/3/0/7/130775431/9363911.pdfIn PDF document text
    • http://files.monika-schnitzer.com/uploads/1/3/1/4/131452959/zabadebavodesawona.pdfIn PDF document text
    • http://files.markpaintspets.com/uploads/1/3/1/4/131407493/mekazimitejirip_naduku_guzinufip.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/1/0431/6515/5487/files/nuwasolizubakujesex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9313/6294/files/biology_book_for_class_10th_punjab_board.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0099/5741/files/vivogupoluwozonopoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/55853960750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/23420219601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/voritawala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/alter_ego_plus_b1_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/que_es_tecnologia_educativa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5464/2853/files/64342906583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/deved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0334/5053/files/anatomia_cavidade_nasal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/43266217897.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5A9 5452 bytes
SHA-256: 09cc9eb88561e2bd4f446359987d0ebb33280ec90ca60f47fa9c4286d5a60d8e
font_01_sfnt_off0000b845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB845 12140 bytes
SHA-256: 89711da23afa83839585016abdd006e3c0b07b47c8a04a7ca27be926cc25d7e5

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