Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eba3e979c9039b3…

MALICIOUS

PDF

45.5 KB Created: 2020-08-07 21:19:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0737f43179ac58d606d50495acada6a SHA-1: 7fa4540a45d9ab2c3941b52f06c89d12cb3e6de2 SHA-256: 3eba3e979c9039b312756ae42ead15a849bd4b825b0b6606588b8ab7a626323b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the primary malicious URL. The presence of numerous external PDF links suggests a link farm designed to obscure the ultimate destination and potentially engage in SEO manipulation for phishing.

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=cbrn+usmc+pdf In PDF document text
    • http://biwevani.recapinc.net/uploads/1/3/1/0/131069839/vopemewaz-tudoremefazat.pdfIn PDF document text
    • http://files.creaghnsonline.com/uploads/1/3/1/3/131398323/zodoge-wusinizetes.pdfIn PDF document text
    • http://files.thriveglenville.com/uploads/1/3/0/9/130969922/4365296.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/1/0431/8176/8864/files/48880480972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/93579790887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/rite_temp_thermostat_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6262/3394/files/49258750726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8232/files/96709521005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6847/9901/files/ranosomukujulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/vifomop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5480/0796/files/43070242324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2910/1735/files/how_to_check_ping_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7053/5318/files/17760870127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/61225949179.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_off00006868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6868 4748 bytes
SHA-256: a477d942b93465ce05cc13466acb4ec1a4efed2740751076a75e3840acbe1364
font_01_sfnt_off00007855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7855 10152 bytes
SHA-256: 44797b5e90c10420dceab3c082d884280b54555ad6862fcee5005f3c99d91238
font_02_sfnt_off00009b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B12 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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