Malicious PDF — malware analysis report

Static analysis result for SHA-256 babefa3b5e4c7c8f…

MALICIOUS

PDF

70.4 KB Created: 2021-03-01 03:12:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1290b12abe0fdf8ef421d5bde03d3cef SHA-1: c9e616072ebd6f93528483061676c4af4b0b887f SHA-256: babefa3b5e4c7c8fe6c2def156bb72c2c2c74e3875fbf9bddc09f84193fbab31
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://xajibur.ru/award?keyword=walmart+pharmacy+phone+number PDF link annotation
    • https://cdn.sqhk.co/madufuxenuw/jxbiige/best_hard_rock_songs_for_ringtones.pdfIn PDF document text
    • https://cdn.sqhk.co/tixuniwe/m7WJrha/monster_rancher_2_slate_download.pdfIn PDF document text
    • https://kekiwudegabute.weebly.com/uploads/1/3/0/8/130813612/8811102.pdfIn PDF document text
    • https://xugibadibexupov.weebly.com/uploads/1/3/4/6/134684970/jixoda_kepelaje_bozigutusaz_tulefu.pdfIn PDF document text
    • https://cdn.sqhk.co/tibatojo/hiXiijV/dubuque_iowa_waterpark_resort.pdfIn PDF document text
    • http://securityverifiedservices.com/free_printable_multiplication_color_by_number_worksheetsm1ue8.pdfIn PDF document text
    • https://molesomux.weebly.com/uploads/1/3/2/6/132681378/5507523.pdfIn PDF document text
    • https://bivedaniliged.weebly.com/uploads/1/3/4/7/134732971/didaxawo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rarezutawuwelam.epizy.com/dibotelidikutuna.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/wajisa.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/88038762052.pdfIn PDF document text
    • https://s3.amazonaws.com/wemofodi/natevonepufo.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/fisojuxedogobakofex.pdfIn PDF document text
    • http://danesanifulen.rf.gd/83958813233.pdfIn PDF document text
    • http://lugumew.epizy.com/mma_strength_and_conditioning_program.pdfIn PDF document text
    • http://pasabepudibupe.epizy.com/militaguforugakamuw.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_off0000d8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FB 5248 bytes
SHA-256: 3d9ac4fc3309ac34b9198149a003910b74a1d14c9fc1a3d20712d32413bef3f3
font_01_sfnt_off0000eabb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABB 9888 bytes
SHA-256: 684aa9947f4740e8837cb6737f726727fda4d1bdbc460f6192397591e0e71760