Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2db1134e35fc66…

MALICIOUS

PDF

72.5 KB Created: 2021-02-27 22:06:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f994a250d47b4362c7aa6d94e8c9a9ac SHA-1: 103097b3f3e069ecab44a6cc0a227fb7dfd1f1b5 SHA-256: 0c2db1134e35fc66089a96bfc9d347298b734ce06eefe9c3935a65f6bc529101
186 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.
  • 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://soxebez.ru/award?keyword=how+to+draw+a+lion+face+easy+step+by+step PDF link annotation
    • https://wovofonunubani.weebly.com/uploads/1/3/1/4/131408017/9186147.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/Jja1jjy/toniz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481423/normal_5febd05b229ce.pdfIn PDF document text
    • https://filajusarapobu.weebly.com/uploads/1/3/4/7/134761194/2140203.pdfIn PDF document text
    • https://nozirurabi.weebly.com/uploads/1/3/0/7/130738896/ea0b78459fc1d96.pdfIn PDF document text
    • https://soxexovefulobi.weebly.com/uploads/1/3/1/4/131484328/3209001.pdfIn PDF document text
    • https://tuzutetenufiro.weebly.com/uploads/1/3/4/7/134716615/2999164.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/how_much_time_to_give_someone_to_write_a_letter_of_recommendation.pdfIn PDF document text
    • https://maparezoja.weebly.com/uploads/1/3/5/3/135321508/4822168.pdfIn PDF document text
    • http://vagokij.iblogger.org/zanoxenifu.pdfIn PDF document text
    • https://cdn.sqhk.co/bejomewuv/hiUjhp2/gavesutirawabijarizak.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/fjbTehb/all_star_soccer_ps1_rom.pdfIn PDF document text
    • http://sunufosabupes.scienceontheweb.net/78598521030.pdfIn PDF document text
    • https://nimifitirujaga.weebly.com/uploads/1/3/4/6/134693460/kufosaribaxib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zubiluwetij.myartsonline.com/how_to_setup_a_xfinity_remote_to_the_cable_box.pdfIn PDF document text
    • http://xolavozezimodan.onlinewebshop.net/dragon_age_origins_best_class_for_archer.pdfIn PDF document text
    • http://rawuwad.epizy.com/lewis_structure_worksheet_3_bf3.pdfIn PDF document text
    • http://gonidiwofove.epizy.com/botaxolejutosipusuwa.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_off0000df10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF10 5444 bytes
SHA-256: fd12eb39b0ca22bf93629fcca75a1f01407d1ae850d53de63b8ac1911c5f3076
font_01_sfnt_off0000f1b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B4 10364 bytes
SHA-256: 856adb8401481d0bf91a843bf56fc858ef9cf4155acb65fb2104e082d4514641