Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f63961fce0549d5…

MALICIOUS

PDF

73.4 KB Created: 2021-02-01 10:23:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 28928ebcd8d4a4db5575d98c500fdd12 SHA-1: 0066cdc54ca2c7d5034469a963df0b665f50c8cb SHA-256: 2f63961fce0549d56c5292e7d3fba034afc53bd87004fddc7fb4f93b7b5e6d6f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://seumenha.ru/aws?utm_term=ys+8+gift+guide PDF link annotation
    • https://cdn.sqhk.co/sileluzorupo/9Bq2BVy/24014573207.pdfIn PDF document text
    • https://somizinizerolu.weebly.com/uploads/1/3/0/8/130873918/2323972.pdfIn PDF document text
    • https://cdn.sqhk.co/gejixoneku/3tyn8Xn/tuzufavi.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/bgijbib/91091642192.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376088/normal_6002ec76382b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366632/normal_5fe11abf306be.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/ihjHibX/stick_stunt_biker_2.pdfIn PDF document text
    • https://cdn.sqhk.co/nemovofa/hLhfifB/wozawurelasaka.pdfIn PDF document text
    • https://cdn.sqhk.co/wefegiwezon/klgggh3/daddy_long_legs_with_wings_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452588/normal_5ff4f2320b66c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384632/normal_5ffbe24c6825b.pdfIn PDF document text
    • https://cdn.sqhk.co/zunesunatiri/hgg68je/chocolate_castle_cake_decorating_techniques.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495413/normal_5fdfdc2a91348.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495999/normal_6008d5cdbbdff.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/wisuw/bumpy_ride_english_song.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/35044360511.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/517147324.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/witimiwotiruzule.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_off0000e57b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57B 4892 bytes
SHA-256: 3eb8c3d194336af3448683b85ca9ea4873bf36fb9cac54bec1f2901366f1b158
font_01_sfnt_off0000f63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF63F 10196 bytes
SHA-256: 789a87777bf49bdebeb347abf163077a1e0f052af77e634f36802b96b0f97663

Open this report in the interactive analyzer, or submit your own file for analysis.