Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ca87b907ad5d9d…

MALICIOUS

PDF

45.5 KB Created: 2020-08-08 01:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d3b7bdae7107369568a5dafd6d34db9 SHA-1: 506561c009cc3fb8b3ddd5edf07e74ec1e73e56e SHA-256: 04ca87b907ad5d9dbc5a05a74d4f153a7f6a42b2780b2a4240add3a32ac8b571
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to a menu and a URL that is also present in the heuristics, suggesting a phishing or malware distribution lure. The presence of numerous links to external PDFs, many hosted on Shopify, further supports the SEO link farm heuristic.

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=bouchon+las+vegas+menu+pdf In PDF document text
    • http://files.voiceofjonescounty.com/uploads/1/3/1/4/131438260/1827386.pdfIn PDF document text
    • http://files.lldmsf.net/uploads/1/3/0/9/130968921/beresojeka_nomipidese.pdfIn PDF document text
    • http://lupij.kiwiinsurancesolutions.com/uploads/1/3/0/8/130814788/46f9c9.pdfIn PDF document text
    • http://files.studentsformedialiteracy.org/uploads/1/3/1/3/131379183/lewenaseberelitir.pdfIn PDF document text
    • http://files.andywilsonmusic.net/uploads/1/3/1/4/131414561/tizukabota-jitamevigeludud-degabaselux-redifujo.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/1/0432/1627/3563/files/audix_m70.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/biochar_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/dozupuluxugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7491/8302/files/kuxadenaviwimad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/mafijabedurijejalikigazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8234/0770/files/35727579863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7152/0411/files/60670727380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/how_to_change_rotom_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6351/7092/files/arafat_na_din_ni_dua.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/ppap_manual_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3330/4981/files/56696063531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/50114434778.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F70 5336 bytes
SHA-256: f0ad91fdf7a949e13d7c14f9c0441000835cefaa13e544f18f9c8447d00a67b4
font_01_sfnt_off00006174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 10292 bytes
SHA-256: b7dbc99e570ec7379654ab7f74072c6a5bb51dbfe701b3419be3a5e8a30e62cc
font_02_sfnt_off000084f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F8 16368 bytes
SHA-256: 339bd93d92cd73c5ef44b332862b6b76f909040f0e7ff8bf1d03a2f4380e26bb
font_03_sfnt_off00009a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A9B 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f