Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b07cd3b5bb465c…

MALICIOUS

PDF

45.5 KB Created: 2020-08-07 19:07:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ce103fdcba0e3bdf49a06c725b2d1b3 SHA-1: ddaeb7e082da51db33f1e51771b9e0dc0d21a14e SHA-256: f6b07cd3b5bb465cc6c3b31aa49bab32bb0eefddafbe2d83566daf139b85125c
202 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically disguised as a loan form download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is part of a link farm designed to redirect users to malicious sites. The ML classifier also strongly flagged this PDF as malicious. While no scripts were directly extracted, the presence of embedded URLs and the overall structure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=sbi+personal+loan+form+pdf+download In PDF document text
    • http://files.cyhmnslam.com/uploads/1/3/0/8/130874067/viwijire-takovedov-nujapum-satuxekituzesi.pdfIn PDF document text
    • http://files.anintimateplace.com/uploads/1/3/1/4/131437312/1098fa83f440c5e.pdfIn PDF document text
    • http://files.bainbridgeje.com/uploads/1/3/0/7/130738569/tisisofavilufudu.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/1/0432/7063/5678/files/gebelisuruwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5032/7454/files/7388670869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/56525057261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32867625585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0645/0074/files/panilawaximapuxizaxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/1186064823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/goxogixadepofaguruwuwafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/70050843380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/mevemigirogasijazegenosuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3290/2806/files/fevatuputigagagagepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/bebatikoreboboxuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/37829435617.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
🗂 Part of campaign: bainbridgeje.com 4 samples

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_off0000746b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x746B 5524 bytes
SHA-256: 1d73ba10c0425f2a8cd8b0442db244b7cb74a70ec0070b2b8e21d4bbb4fc2621
font_01_sfnt_off0000872a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872A 10044 bytes
SHA-256: d091f2bb62702e9c87c8a2c2eb2df900418b929dc458311ca0358818f32e6c93

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