Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97e844ea41e1829…

MALICIOUS

PDF

70.6 KB Created: 2021-02-11 17:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 087d8371e0651857722cf24158d72bd3 SHA-1: 6b3f328b5acb37b5a8c943035f91e387f9dbbae2 SHA-256: b97e844ea41e1829e7c9176690696dc3857ff1021e8b8f5df782dd06322c17f9
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=lg+37lc2d+manual In PDF document text
    • https://cdn.sqhk.co/zidomirit/WrieIKt/gejibujivavo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499341/normal_5ffd8716ce9d7.pdfIn PDF document text
    • https://wawupibinotab.weebly.com/uploads/1/3/4/9/134900246/bimirose_tudoruzemutiwot_rinabusopami_furok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478926/normal_5fe4c1bf191c0.pdfIn PDF document text
    • https://cdn.sqhk.co/moviferu/BFjfnii/vengeance_the_old_school_rpg_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371498/normal_5fdf19532183e.pdfIn PDF document text
    • https://cdn.sqhk.co/sirobuse/icmQbMN/vufuvujekivepidi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470029/normal_5fddbc58e0382.pdfIn PDF document text
    • https://cdn.sqhk.co/mezugifosa/EWRjhhj/tukuvuneliwotokatoxuw.pdfIn PDF document text
    • https://lizatupapej.weebly.com/uploads/1/3/4/4/134401074/ponaxib_sawekosilemodir_leburufo_binaki.pdfIn PDF document text
    • http://lnstagramsupportlives.com/342753236012wh98.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/xedewofuretujo/jurnal_politik_di_malaysia.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/tcs_audit_report_march_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/chivalry_is_dead_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/golugowor.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_off0000d6a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A6 5300 bytes
SHA-256: 79bd133c38964702f450b0a6aebff6e6944d70e17755c013d0b9653fd2072ea5
font_01_sfnt_off0000e8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AE 11052 bytes
SHA-256: 3f419b8b0ddc3a0ab5119c90f3bd65afccc7a49614796c6da75579d4766c7ad4

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