Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb69b9007043f2e0…

MALICIOUS

PDF

71.9 KB Created: 2021-02-15 10:33:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3b921aeca449c077dff2ad5c2a10a19f SHA-1: c357647b4e836e373536f2b03da691bebd1f5f5a SHA-256: eb69b9007043f2e02c13839da3bb79a849ccdf22b17fd59f1b5fa97a3d13182e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=arjun+r+meda+ka+gana++karo PDF link annotation
    • https://cdn.sqhk.co/sojowidaz/hiFBNjc/strikeforce_kitty_league.pdfIn PDF document text
    • https://cdn.sqhk.co/vomifavafo/40uLPFK/75910985124.pdfIn PDF document text
    • https://cdn.sqhk.co/wumerelup/Hhdihub/zaxom.pdfIn PDF document text
    • https://cdn.sqhk.co/jorobasobu/GKhaihN/19757624586.pdfIn PDF document text
    • http://lepasipun.iblogger.org/fairfax_county_police_daily_reports.pdfIn PDF document text
    • https://cdn.sqhk.co/poxedomeke/hcTohBZ/lovatubuvux.pdfIn PDF document text
    • https://cdn.sqhk.co/jirowolad/gchdhjA/kukezadalifuvulumul.pdfIn PDF document text
    • https://xananitape.weebly.com/uploads/1/3/4/0/134095977/8265762.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxisilogok/jahJs7B/bingo_music_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxunoromi/c6t4qov/how_to_charge_apple_pencil_on_ipad_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/febenanedibu/aiaacZv/rally_definition_webster.pdfIn PDF document text
    • http://xijogeziku.66ghz.com/ririmaxugatusexujuwim.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/SZyAMhd/8152221285.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tirinito.epizy.com/brandon_grotesque_black_font.pdfIn PDF document text
    • http://lutubipejor.rf.gd/fegelij.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_off0000defb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFB 5064 bytes
SHA-256: 515fdc4c2c01aa4a02caa6dd7cbf8454dbec824193dc90f69298dd53d75a57fa
font_01_sfnt_off0000f021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF021 10204 bytes
SHA-256: c86d14c235b3e65e0dca5c25fd9b30c14a452db125e7023a2519614fba334c43