Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd39ecd74326799…

MALICIOUS

PDF

45.1 KB Created: 2020-08-24 04:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2ae8eb4fdd18a5b40bdae0edf73dd72 SHA-1: 084ced906549d6fa54e7978d1822817a5fa225f2 SHA-256: 5cd39ecd743267990f859bbee46ca2a297ae2220aa91f72054f39699c5324d34
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a 'Boult wireless earphones user manual', a common lure for phishing or malware distribution. The presence of multiple PDF links and a malicious redirector indicates an attempt to drive traffic to potentially harmful content.

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=boult+wireless+earphones+user+manual In PDF document text
    • http://wibevire.gillilandhcwildrags.com/uploads/1/3/0/7/130775407/lipetu_mepinu_bebisifuzegivev.pdfIn PDF document text
    • http://dobemo.lmceducationalpartners.com/uploads/1/3/1/4/131407233/donolejulupo_bosebef_tobome.pdfIn PDF document text
    • http://files.eaplab.eu/uploads/1/3/2/3/132303270/fdeb21662e8ce6d.pdfIn PDF document text
    • http://files.theriversedgeranch.org/uploads/1/3/1/8/131871762/0f162.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/1/0429/6183/0037/files/jupafaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jobevemavesofidubuxiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1660/1249/files/52405021599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5011/4978/files/sublime_bone_dust.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2046/files/school_bonafide_certificate_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2675/0362/files/70983991703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/belonop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3890/0373/files/cv_template_latex_phd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/superior_drummer_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/8629/0584/files/86043564699.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 8

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_off0000712c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712C 5200 bytes
SHA-256: c6b39b47ed49f48da0621f7d88a1e528168234d6e983e4ec79c1d3739f791f0a
font_01_sfnt_off000082c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C1 10696 bytes
SHA-256: 7610ea8f0e6a858a68ab89d953b34296ddb98537c27c8781228de3ef7cd4ba76

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