Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c0d05083ec235f…

MALICIOUS

PDF

70.5 KB Created: 2021-02-22 05:49:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cc0a53ee3858ed6e9b0ff69a6141b782 SHA-1: 35955b58e4256a035955851e376d796309769db5 SHA-256: 95c0d05083ec235fad226db7a146fdb9b6dbadcebc18d00d58527b57ba4cd709
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/wix?keyword=plate+tectonics+worksheet+answers+crossword PDF link annotation
    • http://rocketdocs.us/insparables_streaming_vf0f3t7.pdfIn PDF document text
    • http://didanak.22web.org/anne_marie_friends_song_pagalworld.pdfIn PDF document text
    • https://ramemegu.weebly.com/uploads/1/3/1/3/131383760/4d65a6c891a559.pdfIn PDF document text
    • http://anyita.space/27424530916cjrae.pdfIn PDF document text
    • http://zofokesagofot.22web.org/vikudivagajil.pdfIn PDF document text
    • http://1fps.ru/tcl_32s327_32-inch_1080p_roku_smart_led_tv_costcovtm0h.pdfIn PDF document text
    • http://afracheat7.xyz/4763112515620sv7.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/mutirexa/wordpress_affiliate_platform.pdfIn PDF document text
    • http://ragomoxos.rf.gd/detect_when_browser_receives_file_javascript.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/96506543361.pdfIn PDF document text
    • http://sejonigimanam.epizy.com/fujuvejasamaxapu.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/bose_quietcomfort_25_apple_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/podigutojibexazivenubu.pdfIn PDF document text
    • http://kagomovibinat.rf.gd/76580706807.pdfIn PDF document text
    • http://zibinafo.rf.gd/java_swing_tutorial_oracle.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/11975509350.pdfIn PDF document text
    • http://runoxujozu.rf.gd/nekegipido.pdfIn PDF document text
    • http://detotoga.epizy.com/personal_budget_template_free_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/amlido_rajasthani_song_free.pdfIn PDF document text
    • http://fusatepalu.epizy.com/alkanes_that_form_ring_structures_are_called.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_off0000d8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AC 5184 bytes
SHA-256: 2c85f43305c5ae96215b8d6bc74ca141b638c5034a9ec1cdcabf6ef0ac3ce42d
font_01_sfnt_off0000ea59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA59 10108 bytes
SHA-256: f5a56c0f4e15491a0430804a513b9bea92dc6e8e9300e49c99dd86a4d7077071