Malicious PDF — malware analysis report

Static analysis result for SHA-256 718de9cafcff1107…

MALICIOUS

PDF

68.2 KB Created: 2021-03-04 01:08:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4cf72ed9be55ddf684c31c1ff81e6c38 SHA-1: aa0f64a253f2ba81b68917f1fd9fb3497df86a75 SHA-256: 718de9cafcff110749ae21fc30cdee3b82d019271651c5aab2ab80186b63c7f4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/wix?keyword=soccer+legends+unblocked+6969 PDF link annotation
    • http://leninuludobodu.mygamesonline.org/perspective_for_comic_book_artists.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/koxonut.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/how_much_is_hp_stream_11_in_nigeria.pdfIn PDF document text
    • https://ninozaji.weebly.com/uploads/1/3/4/6/134690112/fopukekeril.pdfIn PDF document text
    • http://xenalebosob.scienceontheweb.net/jobuvatobeto.pdfIn PDF document text
    • http://xogunajeraxuda.mywebcommunity.org/54879991729.pdfIn PDF document text
    • http://kuboduzuke.mypressonline.com/blackjack_weapon_meaning.pdfIn PDF document text
    • http://baliferifopiz.mypressonline.com/how_many_milk_ducts.pdfIn PDF document text
    • http://wuramegojuluz.mywebcommunity.org/nonosepu.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/wisuw/rowuzokotoxij.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/hannah_arendt_the_human_condition_sparknotes.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/mejevev.pdfIn PDF document text
    • http://mijikudetixo.epizy.com/38878477201.pdfIn PDF document text
    • http://titugol.atwebpages.com/dell_optiplex_9020_sff_computer.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/gypsy_moth_nest_vs_tent_caterpillar_nest.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_off0000ce82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE82 5516 bytes
SHA-256: 10d3c05fee0250ff45f61125280b62b2c2d5d3eb995f2f451d9b348f11aa0892
font_01_sfnt_off0000e147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE147 10208 bytes
SHA-256: b768a51798166b292e45dde2ffc18564e795eb0affc6f2b50ae5e163577d6551