Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f9374a8140268e7…

MALICIOUS

PDF

66.6 KB Created: 2021-03-04 11:02:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c7f1c88ef3fe46636a7af08dda62253d SHA-1: ba9660d520b59869ea178301e0d6583c95bc3078 SHA-256: 8f9374a8140268e7341dfd67e97cd0d88594dc37d910a12755337cd81e6c4190
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://gimoguvi.ru/wix?keyword=unit+9+stoichiometry+test+answers PDF link annotation
    • http://tapozifokun.mywebcommunity.org/born_a_crime_book_cover.pdfIn PDF document text
    • https://muzezibabut.weebly.com/uploads/1/3/0/7/130739211/8018118.pdfIn PDF document text
    • http://zuxekagapefe.mygamesonline.org/tv_ear_reviews.pdfIn PDF document text
    • https://jirakevajiw.weebly.com/uploads/1/3/5/9/135966085/nigusiku.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/52285710899.pdfIn PDF document text
    • http://dajexori.mypressonline.com/raroxepowewixodigewubinu.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/dizuzawifokevimudo.pdfIn PDF document text
    • http://zeboxagekej.sportsontheweb.net/geralds_game_ending_explained_moonlight_man.pdfIn PDF document text
    • http://tetupamino.mywebcommunity.org/10755739807.pdfIn PDF document text
    • https://tajamexuzoxobug.weebly.com/uploads/1/3/1/4/131410736/kuxawuzaxojux.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/are_poulan_pro_snow_blowers_any_good.pdfIn PDF document text
    • https://xuwupeloz.weebly.com/uploads/1/3/4/7/134734270/7150105.pdfIn PDF document text
    • http://xugaguf.mypressonline.com/month_to_month_rental_agreement_template_california.pdfIn PDF document text
    • http://tifoxikutawe.sportsontheweb.net/tivadulixatogoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://madigekole.onlinewebshop.net/dozifelurowozimilojasa.pdfIn PDF document text
    • http://negumigimewote.onlinewebshop.net/52773698218.pdfIn PDF document text
    • http://niwurekatexo.atwebpages.com/vinavuvixasudazafev.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_off0000c90c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC90C 5348 bytes
SHA-256: 55f8a96677835e6e79727b754b25c326af88e6e68aa6a011c42f15c1984f7e42
font_01_sfnt_off0000db28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB28 10204 bytes
SHA-256: 3706f3b671c15792fad7a3d03eb31c8689ae0f4d5981b2be11974848494786ef