Malicious PDF — malware analysis report

Static analysis result for SHA-256 a286789ce5e01ae8…

MALICIOUS

PDF

43.7 KB Created: 2020-11-09 15:42:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9fa872c053f267f4d9cff4a367dc09cc SHA-1: 1247cb41b9cca455f05bb9842171cc958b6866ff SHA-256: a286789ce5e01ae82192445192e830ab3e8be5f0cc1ed9ca9947d85db0d19eb4
76 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to 'trafftec.ru'. This URL is presented in a context that suggests a lure, possibly to trick the user into downloading further malicious content or providing sensitive information. The ML classifier strongly flagged this PDF as malicious, supporting the suspicious nature of the embedded content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/123?keyword=lg+tv+42ln5300+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460457/normal_5fa447cf3b09b.pdfIn PDF document text
    • https://gukijofajileraw.weebly.com/uploads/1/3/4/3/134392650/d2efe.pdfIn PDF document text
    • https://debasomi.weebly.com/uploads/1/3/0/7/130739769/18b3dc9062.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427506/normal_5f99bcbf21bff.pdfIn PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/jovaregirewegab.pdfIn PDF document text
    • https://loroxiboziniluz.weebly.com/uploads/1/3/4/4/134402159/nekusudiwalido.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/plate_tectonics_lab_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad5df1b5-7fcb-490f-af16-6a15e89f7e44/bayou_breakdown_trumpet.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/the_santa_clause_putlocker9.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2C 5384 bytes
SHA-256: 06ead6f63fb57dbf75c4d16ce3568ae37f5a04f8ef289281474fb12dde32cffc
font_01_sfnt_off00007d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8A 10820 bytes
SHA-256: e43b179eb6a26ec353bf5909e7cffd0e61344e774a8dbe5d49ec0b204ffc251d