Malicious PDF — malware analysis report

Static analysis result for SHA-256 f724aa938d09986b…

MALICIOUS

PDF

73.1 KB Created: 2021-01-29 06:09:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 75b6ab71ca6e62aaa73288a947e4ddf9 SHA-1: 44ea0670f7c51e9fd47ed5195710434021faae52 SHA-256: f724aa938d09986bcbf2999e4c3ab8e3576df7f2ac4d8a8781a9c6b0ee326148
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=big%20bang%20theory%20theme%20song%20extended%20lyrics PDF link annotation
    • http://kojewotezigu.iblogger.org/luwafumalapafisatami.pdfIn PDF document text
    • https://gawenowufiwozup.weebly.com/uploads/1/3/1/3/131383543/4319394.pdfIn PDF document text
    • https://fobizolavavoka.weebly.com/uploads/1/3/1/4/131406440/3082400.pdfIn PDF document text
    • https://pafegesufo.weebly.com/uploads/1/3/4/7/134719460/c4509ddafa45281.pdfIn PDF document text
    • http://meetchat.space/dream_island_obsessional_park_meaningek44y.pdfIn PDF document text
    • http://rentline.pro/415006755416vi5e.pdfIn PDF document text
    • http://fdvsefwfrw.space/crossword_solver_la_timesn7d3l.pdfIn PDF document text
    • http://foxareb.22web.org/46460303676.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://segukilu.epizy.com/38541733673.pdfIn PDF document text
    • http://rozopujonabesix.epizy.com/tiduserefus.pdfIn PDF document text
    • http://koriguno.rf.gd/life_is_beautiful_all_songs.pdfIn PDF document text
    • http://roxonotagake.rf.gd/64431428386.pdfIn PDF document text
    • http://tirodubixuvix.epizy.com/macromolecules_review_worksheet_for_biology.pdfIn PDF document text
    • http://madukavinoxonal.epizy.com/cefsharp_winforms_anycpu.pdfIn PDF document text
    • http://pususarejopo.epizy.com/asepsia_quirurgica_definicion.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_off0000dde7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE7 5712 bytes
SHA-256: 97c1188026110c4c45b358816e3f0cf5bc1ba29d27d7c9afd5052db6372c9dff
font_01_sfnt_off0000f140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF140 11188 bytes
SHA-256: 55535a29d0ea1e27529382deade0b231501d955bf96d0cd318026c15ad23b2c7