Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ccaa5bf0dd2270…

MALICIOUS

PDF

74.7 KB Created: 2021-02-28 11:54:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5a9d77933e1f3c6988338fcfaea507af SHA-1: efd9e24f0dd0201142fdaab03c5e0b875d10c3f5 SHA-256: 27ccaa5bf0dd2270fdd48504ae160137d535cf9417df28bd6b5baa588b48a4d0
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://fokemale.ru/aws?utm_term=average+price+to+rent+a+tux+for+wedding PDF link annotation
    • http://gamowenugeg.sportsontheweb.net/what_is_a_personal_belief_essay.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/xapepetobivuwerazu.pdfIn PDF document text
    • http://leninuludobodu.mygamesonline.org/the_coldest_winter_ever_movie_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/sodovokak/woaichj/37341189086.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuputid/gcwXk8w/dubopedi.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/73115671440.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/romeo_and_juliet_act_3_scene_2_line_47_allusion.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rulamiji.onlinewebshop.net/zewakafamazomigosope.pdfIn PDF document text
    • http://lakiver.epizy.com/77785893243.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/afrikaanse_movies_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/febubowewovo.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/55877491504.pdfIn PDF document text
    • http://lumosaneja.onlinewebshop.net/wawema.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/apprendre_l_anglais_niveau_dbutants-_a2.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/challenger_annuity_change_of_details_form.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_off0000e70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70C 5324 bytes
SHA-256: bb230f193702a17e2eef1441c5117e77853929920dd004c5122a60b73fbd99b7
font_01_sfnt_off0000f957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF957 10964 bytes
SHA-256: 0e127119e1f11a08caf92e7f22ee9415359b10e309b959ce5e3c543e5159cce6