Malicious PDF — malware analysis report

Static analysis result for SHA-256 688f65dac9064b80…

MALICIOUS

PDF

67.5 KB Created: 2021-02-28 10:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3e83e6aca5265fab3a87a15a3821c657 SHA-1: 6c2eb29660c17d077d924f495c7a7b8731804698 SHA-256: 688f65dac9064b802d93fe65e80340f23998af905dbea0ff6560b045bd4ce2b0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=kreg+foreman+manual PDF link annotation
    • http://famozosivupiwij.sportsontheweb.net/27343097956.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/norse_mythology_names_for_pets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374851/normal_5fee18ed7f4f1.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/59793038343.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/59997036772.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/nogugusatinanej.pdfIn PDF document text
    • http://goligofalu.medianewsonline.com/how_to_hard_reset_a_samsung_tablet_10.1.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/410786759.pdfIn PDF document text
    • http://bewewafip.scienceontheweb.net/biguterog.pdfIn PDF document text
    • http://xiwakaravivomik.scienceontheweb.net/19870566390.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimixof.onlinewebshop.net/sinners_in_the_hands_of_an_angry_god_quotes_and_meanings.pdfIn PDF document text
    • http://kugukokoner.myartsonline.com/gujabirejivalabom.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/5559742008.pdfIn PDF document text
    • http://zatuvejamubolo.atwebpages.com/19972911453.pdfIn PDF document text
    • http://mijovutotukedes.onlinewebshop.net/how_to_put_on_the_full_armor_of_god_daily.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/hamlet_shakespeare_modern_english_download.pdfIn PDF document text
    • http://fiforeru.atwebpages.com/913595954.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_off0000cce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE4 4880 bytes
SHA-256: 245e582ea61bc78d34751557faa7956d602c6b46eca6be1b82a2cbc534604fef
font_01_sfnt_off0000dd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD71 10324 bytes
SHA-256: 8161a3f4262b7d9d361cdcd94ee869c35156901051a67414fc2dd1de448e05e4