Malicious PDF — malware analysis report

Static analysis result for SHA-256 027db3358b67ba47…

MALICIOUS

PDF

43.9 KB Created: 2020-08-03 15:21:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04e62555fc837f685d9d45b096ff58b3 SHA-1: 2bf8b720157a19e99a62edb9123376d0b7d2592d SHA-256: 027db3358b67ba472f3cecac499dd0b861f2877b48913a50f0235a85c2849aaf
234 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically 'https://ttraff.ru/pify?keyword=manual+de+drenagem+linf%25C3%25A1tica+pdf', which is flagged as malicious. This indicates a phishing or scam attempt to redirect users to malicious content. The document also contains a large number of links to other PDFs, suggesting a link farm designed to improve search engine ranking for malicious sites.

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=manual+de+drenagem+linf%25C3%25A1tica+pdf In PDF document text
    • http://files.crownguitar.com/uploads/1/3/1/6/131606393/2887847.pdfIn PDF document text
    • http://files.latitudetravelplanning.com/uploads/1/3/1/3/131398322/weliv.pdfIn PDF document text
    • http://files.thearamaicscriptures.com/uploads/1/3/0/8/130813781/8997320.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/1/0431/4251/2802/files/dosufuvefenomigipitijorom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/14184103239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/dupusijokinegotesawuleze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2323/5232/files/3961517287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/domovexijos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0880/2466/files/pamukipiwejusoraros.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0431/9520/3745/files/50734163501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/nakebubot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/79457301254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4012/9692/files/zapigumanobunavesipez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7182/2229/files/proform_elliptical_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7430/6719/files/xusin.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: thearamaicscriptures.com 5 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000697c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697C 5536 bytes
SHA-256: 09415d0acb8eb4c2a0f76f1d5831bbf68d9934e5b7279b2398a604a0712be47e
font_01_sfnt_off00007bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC6 12396 bytes
SHA-256: 6ecf06cf3f8deab7a337f6fdc3e365abdd949441549458adf87950fc09d0e4f4