Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee965177b1578fc…

MALICIOUS

PDF

72.3 KB Created: 2021-02-12 04:32:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dbc18c96e12b6108830912b4087a3edc SHA-1: a136cbfbe537d4e8d3d621f714e1f8643f895166 SHA-256: 8ee965177b1578fc9cc049854f9168d3ba28faebafbe8d646b9ee2bf528ba3ac
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://bologen.ru/wix?keyword=rdr2+online+money+glitch+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401697/normal_600d0d15cfbd7.pdfIn PDF document text
    • http://igrarazuma.info/asean_vision_2020_adalahh1oj8.pdfIn PDF document text
    • https://bonikelebosobi.weebly.com/uploads/1/3/2/8/132814552/1871627.pdfIn PDF document text
    • http://lnstagram-badge-verification.com/joola_ping_pong_table_touch_up_painthmi9c.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/hdf8GqX/dictionary_python_append.pdfIn PDF document text
    • https://cdn.sqhk.co/fafovewidom/ZBZwhR0/konulanedobofukemetirobik.pdfIn PDF document text
    • https://cdn.sqhk.co/luwiwaduna/CAihslK/ionity_charging_stations_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/retesixabe/mjhgeF1/mit_sloan_management_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496586/normal_600dfdbbe9853.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405193/normal_5ff03a473f927.pdfIn PDF document text
    • http://magazinrf.xyz/62297892029zbccw.pdfIn PDF document text
    • http://mexicotop.xyz/fenimore_fillmore_the_westerner_descargarhqlkq.pdfIn PDF document text
    • http://ig-copyrightnoticehelp.com/3333078717u9q9x.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/fajujiju/gomidilujoguzovufe.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/17596083623.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/report_access_cambio_pagina.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/brain_teaser_worksheets_year_5.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/93697374060.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/manual_chain_pulley_block_specifications.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_off0000dcec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEC 5348 bytes
SHA-256: af75db3170ab085b3200b297a8ab66eaa2e2f8efeb0af31184da990d99bcda42
font_01_sfnt_off0000ef06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF06 10852 bytes
SHA-256: ad8dc035118a612d8729cddaeaaecba735dbbf0b3861094f942283eed83d7059

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