Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f947cc4608f187…

MALICIOUS

PDF

90.9 KB Created: 2020-11-26 10:51:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-18
MD5: 1e131e90a90296b5ef93d5d8bb96f44a SHA-1: 41d8df5979edd8c3cd661f222bfa41d7e8203150 SHA-256: 26f947cc4608f187bcdb24b64e431f6c95f4541c934814577b8febd7cdb1ce60
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffine.ru/wb?keyword=turnitin%20plagiarism%20software%20for%20windows In PDF document text
    • https://galezarulunozip.weebly.com/uploads/1/3/4/8/134896955/zorumuduzesimomuras.pdfIn PDF document text
    • https://rulodewarozuw.weebly.com/uploads/1/3/4/6/134678260/rusazuwited.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/direct_examination_def.pdfIn PDF document text
    • https://jonipafatanepa.weebly.com/uploads/1/3/2/7/132741476/gelurorizapov.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/vakufilazozewopez.pdfIn PDF document text
    • https://zigamebujadosa.weebly.com/uploads/1/3/4/7/134745820/8943949.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/92157568214.pdfIn PDF document text
    • https://relowuforobelo.weebly.com/uploads/1/3/4/5/134528439/gizufaduro_vapeg.pdfIn PDF document text
    • https://judemozosuduj.weebly.com/uploads/1/3/4/3/134306717/zaderaluvexo-gotogitusedor-setewufogiw-xurelajawo.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/54631780846.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/wuxekodu.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/best_offline_personal_assistant_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/reading_practice_ielts.pdfIn PDF document text
    • https://malalufapavi.weebly.com/uploads/1/3/4/4/134481779/xodotilu_tabimivazuf.pdfIn PDF document text
    • https://rarasaxemog.weebly.com/uploads/1/3/4/6/134611000/merazunexiwapavawogo.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In extracted file (font_01_sfnt_off00011c34.bin)
    • http://www.ascendercorp.com/In extracted file (font_02_sfnt_off0001245e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_02_sfnt_off0001245e.bin)
    • 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_02_sfnt_off0001245e.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000111b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111B5 2952 bytes
SHA-256: 013fc9f45313cdddd5762e6694753e55f6a85ad2eec225b6e17fd140af1ee5c7
font_01_sfnt_off00011c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C34 1696 bytes
SHA-256: a63dc7203ceba2031beaf1d50b83973ffdd0483474384fa5780efc3deacec6ca
font_02_sfnt_off0001245e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1245E 5404 bytes
SHA-256: 8ab4194db3c3231f797069187c0984eb20bd47124b187c02eaf8f106f7b4ee92
font_03_sfnt_off000136bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136BD 11396 bytes
SHA-256: 85e1e70a61ee8546b2243edcf7342053ff6b68f6e0b0bec7f9a3530a8e6f5294