Malicious PDF — malware analysis report

Static analysis result for SHA-256 052bf90dad85aad3…

MALICIOUS

PDF

76.7 KB Created: 2021-02-26 01:38:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cb65674be8ae00d9c33a8960c0b7aba7 SHA-1: 3b3d4b7876a7ec086f098ff2d0bf1ab6b1ad3282 SHA-256: 052bf90dad85aad39c28e65327ded951dae39f7258d6a23e1a3065a11e6210bc
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://druttle.ru/wb?keyword=what%20does%20the%20ending%20of%20the%20killing%20joke%20mean PDF link annotation
    • https://cdn.sqhk.co/vopokemib/8heHyhg/38092012219.pdfIn PDF document text
    • http://mylic.ru/difezagirupewukezuzarokw10qs.pdfIn PDF document text
    • http://fabermanufacture.ru/rumafadelizmnt2r.pdfIn PDF document text
    • http://gufutaca5.xyz/617878076768relt.pdfIn PDF document text
    • https://kosodakugup.weebly.com/uploads/1/3/4/6/134655388/7286837.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/jvxhhjb/kobe_and_gigi.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/extreme_speed_car_simulator_2019_apk_mod0un2q.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/fojatepa.pdfIn PDF document text
    • https://cdn.sqhk.co/duputokodoz/hjhiig9/59004487053.pdfIn PDF document text
    • https://jufasoxoko.weebly.com/uploads/1/3/5/3/135315704/35f71d71cd9b4.pdfIn PDF document text
    • http://malapiwo.66ghz.com/chef_s_choice_food_slicer_manual.pdfIn PDF document text
    • http://jamonomikusuka.22web.org/watch_dogs_2_trailer_free.pdfIn PDF document text
    • http://djami.ru/55540021844km6zb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fokozagizek.rf.gd/43501906648.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/quienes_conforman_la_asamblea_nacional_revolucion_francesa.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/fopekodaxogujipaz.pdfIn PDF document text
    • http://nabenejajoko.myartsonline.com/how_to_become_an_interior_designer_without_a_degree_uk.pdfIn PDF document text
    • http://nakuwoxadi.epizy.com/dusigaluneletadimuza.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_off0000efa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA2 5380 bytes
SHA-256: ea9fddf09e15200fae7ef66572b5bf222bfc923e9405be3eb0061778524691dd
font_01_sfnt_off000101e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E1 10452 bytes
SHA-256: ce38f7a6ba5cfc4fb6dc65369eb574cf5144541dd9f2e14ce0ccbc0331c577f2