Malicious PDF — malware analysis report

Static analysis result for SHA-256 847da89d3f81184b…

MALICIOUS

PDF

39.3 KB Created: 2020-10-28 18:25:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: 8684afbed9d205baa065fe436fbe3030 SHA-1: 0c7853f4bb4fd0c67fd87526df79c0add93d527f SHA-256: 847da89d3f81184bc046ca03630e5cbbface9984f67987d0af29af919c171f08
224 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many pointing to CDN-hosted PDFs, which is characteristic of a link farm or SEO poisoning attack. One of the primary links, 'https://gettraff.ru/strik?keyword=canon+powershot+elph+300+hs+battery', is identified as a malicious redirector. The document body also contains text related to a Canon camera battery, likely a lure to encourage clicks on the malicious links.

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.
  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • 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://gettraff.ru/strik?keyword=canon+powershot+elph+300+hs+battery In PDF document text
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/gowabojin_godol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412895/normal_5f94c0a31cab1.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/piwidima.pdfIn PDF document text
    • https://rivatuvimib.weebly.com/uploads/1/3/4/4/134469475/70816.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370533/normal_5f979a9c91678.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378151/normal_5f9316863aa9c.pdfIn PDF document text
    • https://s3.amazonaws.com/sanekufiwumafo/statistical_physics_problems_and_solutions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381289/normal_5f8b3b8bd20ac.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/6522343223.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_5f88c5ef022bd.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/lunigodevogikavew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365576/normal_5f88a5857e9ff.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/9397168.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f8a1133d7f04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_5f8718f3c416b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383131/normal_5f922eb21ceaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005a19.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005a19.bin)
    • https://cdn.shopify.com/s/files/1/0498/8040/0030/files/nivofawumawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2724/1879/files/59359156071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8583/3410/files/sherman_silver_purchase_act_effect.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7940/4194/files/cswip_3.2_questions_and_answers_2020.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 extracted file (font_00_sfnt_off00005a19.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A19 5452 bytes
SHA-256: 15da7a31675be2e30cbcf0854f8b0b384c317f61291550910e453edf56893fe7
font_01_sfnt_off00006ca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA6 10368 bytes
SHA-256: 2e6cfb830de752f1534414acdea589cdcbbeab4b1bcdc8d2089fe87bc0090b98