Malicious PDF — malware analysis report

Static analysis result for SHA-256 49513620c58e560a…

MALICIOUS

PDF

66.3 KB Created: 2020-11-19 14:29:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 6e572d016101cc9ad1d487d42703120e SHA-1: 69d28ccefdc03d33617f7883c3e63834f61c459a SHA-256: 49513620c58e560a06d8c33852cf51539969f59f209265fdf1b4379dcd28afea
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafficel.ru/123?utm_term=who+makes+guide+gear+boots PDF link annotation
    • https://mevamakokuvafas.weebly.com/uploads/1/3/4/0/134040887/776e5bc7fb.pdfIn PDF document text
    • https://mufuwavujove.weebly.com/uploads/1/3/4/0/134042856/dutaduko.pdfIn PDF document text
    • https://woxomeze.weebly.com/uploads/1/3/4/4/134498023/lisokujob-jinufulufeki-dakigekeguzer-mezapinagifet.pdfIn PDF document text
    • https://zojusuvog.weebly.com/uploads/1/3/4/7/134762677/9251826.pdfIn PDF document text
    • https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/489309587dc1b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2a074e5-7b45-4ea6-9a4b-ac64a88fdf0a/10884317096.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70ea0cdc-16b4-4f3f-89f3-195fdc9fd053/kijisiwejevivagu.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/notuxuferojofodapozaf.pdfIn PDF document text
    • https://s3.amazonaws.com/sanekufiwumafo/allergic_to_silicon_dioxide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8c0d1af-2c29-447b-8f68-ce9e7702660a/nobujite.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/99908440693.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/approval_sheet_dlsu.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_off0000c844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC844 5424 bytes
SHA-256: aab0353abd90e025b293af0faae1e5ae5669b67074ffe1d330140bcd29b34518
font_01_sfnt_off0000da8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA8F 9792 bytes
SHA-256: dca575230790a6cce94451c004dce29a4a094fce28d3ca0f610c725bf43998d8