Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2598aad12a8969…

MALICIOUS

PDF

72.4 KB Created: 2020-11-20 17:08:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 0e87d85fc9b6f83f79742870d3679e2d SHA-1: 20e8ddeb09aaf816354a9557be5c7f1e957e0b4a SHA-256: 6e2598aad12a8969257a6e90b3f2242ddf34d52d5d31b0081708a1e208810acb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=chat+application+using+socket+programming+android PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404965/normal_5fa84a39668f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5f8d06a29604e.pdfIn PDF document text
    • https://juromimabosag.weebly.com/uploads/1/3/4/6/134644914/622390.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417834/normal_5f9d2e388fe10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457281/normal_5fb2d5fe0b356.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_5f9c9e57ab849.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/55d39167-bc06-49ec-9c09-a5aed2624400/laradisadutob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4319c366-9704-4ee1-9730-c5f90d99848d/nordictrack_treadmill_manual_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/suxojolevaxabewozod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23d45095-a91a-4a2c-a778-0f13fc2a6a9b/black_blizzard_geometry_dash.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/kobo_books_app_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb4f4613-2009-41df-99c1-1bfb00e3e0e2/84983499407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24e14f3a-e9d4-47d3-b6fe-9087fdf331fe/monster_races_5e.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebbbd62e-8d39-41c2-aa73-1ef67940c507/toram_blacksmith_leveling_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f5ce90a-4d12-4d26-af59-d5cf18cc1d59/12414026628.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_off0000ddcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCD 5456 bytes
SHA-256: 17057c3983a89334480cba928ba30e618c0237f98111743b3ae18edadc1bb22b
font_01_sfnt_off0000f02a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02A 10736 bytes
SHA-256: b1ffb0a170f0ef0df2ef4943b739579794a7bfdc87f1762576d9f9c311cdf575