Malicious PDF — malware analysis report

Static analysis result for SHA-256 1399e024e9f7ffa1…

MALICIOUS

PDF

72.7 KB Created: 2021-02-27 22:31:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f8fd918f879a65334adee838dc0cb032 SHA-1: e9191ab602fe4dc6687cbd9d4ec41c00b64fea5c SHA-256: 1399e024e9f7ffa167664465a58f4cab62657918a11904b8673da9e46be317db
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://baarspo.ru/123?utm_term=cat+in+the+hat+cartoon+song PDF link annotation
    • https://cdn.sqhk.co/wanaxowuwot/jj2iexr/battleship_war_2_game.pdfIn PDF document text
    • http://dalidusiz.mywebcommunity.org/american_army_phonetic_alphabet.pdfIn PDF document text
    • https://cdn.sqhk.co/lasesekov/HicagdW/65726292158.pdfIn PDF document text
    • http://lukosewikaj.22web.org/acer_predator_helios_300_bios.pdfIn PDF document text
    • http://baliferifopiz.mypressonline.com/what_is_wizards_first_rule.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/lizuseguwix/resume_cover_letter_template_for_administrative_assistant.pdfIn PDF document text
    • http://kadimupekomo.rf.gd/vivah_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/81873083245.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/wivusedaxazobalesixiwiz.pdfIn PDF document text
    • http://dalitixusukewo.epizy.com/jelup.pdfIn PDF document text
    • http://pavunununege.epizy.com/44818358595.pdfIn PDF document text
    • http://lowadof.epizy.com/bhubaneswar_today_weather_report.pdfIn PDF document text
    • http://dadorisisewane.epizy.com/81952949953.pdfIn PDF document text
    • http://pixudavevenute.rf.gd/34244870757.pdfIn PDF document text
    • http://gaxugozoj.epizy.com/7550940576.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_off0000e135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE135 4932 bytes
SHA-256: 634110bea3ca5e457bac5d301ce4d3000577f64119bf17f537c981b7d00458f4
font_01_sfnt_off0000f1f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F2 10748 bytes
SHA-256: 445420845ac4b3401b3684d67432d5da157c9325cf750508849fb04f39c5dc98