Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36b20bd0cd1fcd5…

MALICIOUS

PDF

70.0 KB Created: 2021-02-26 15:41:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 664897d71af46a19325144fe79d29a70 SHA-1: a0ac691e39d430601ad75afb96fcbcff506b2220 SHA-256: b36b20bd0cd1fcd53bc496d2ac861bdf683a0e8bfc211710a300ab6432d5b995
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://xezojetit.ru/award?keyword=arduino+ide+win+8 PDF link annotation
    • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/cd251f781579.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462035/normal_6021d0c33e6aa.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/f4U63bc/marvel_unlimited_plus_membership_kit_2020.pdfIn PDF document text
    • https://pasuwuzo.weebly.com/uploads/1/3/1/4/131438486/e730b480243.pdfIn PDF document text
    • https://kafasomawupi.weebly.com/uploads/1/3/0/7/130775431/fd2eb0.pdfIn PDF document text
    • http://wafolepis.iblogger.org/alesis_dm10_snare_problem.pdfIn PDF document text
    • https://zuwejuropuri.weebly.com/uploads/1/3/1/6/131606208/809a63cace48.pdfIn PDF document text
    • https://cdn.sqhk.co/pesamelez/hehdjbx/dialogue_rules.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/hp_reverb_g2_release_date_europe.pdfIn PDF document text
    • http://navevukosuso.mypressonline.com/craftsman_dovetail_jig_2570.pdfIn PDF document text
    • https://wolunogejafijut.weebly.com/uploads/1/3/4/6/134649672/zokugejof_lidurawupezivok_towazidorigiwe.pdfIn PDF document text
    • https://cdn.sqhk.co/dijowasedop/jjwjcn9/netflix_movies_august_2020_family.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/xomovuke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449602/normal_601a14550012d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386349/normal_602c2b1aa28eb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vorisenunajix.myartsonline.com/77641917505.pdfIn PDF document text
    • http://litegizixusiw.rf.gd/networks_manifest_destiny_worksheet_answers.pdfIn PDF document text
    • http://xogonat.epizy.com/minecraft_full_version_free_pc_offline.pdfIn PDF document text
    • http://sokivuj.epizy.com/gebepoz.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_off0000d827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD827 4676 bytes
SHA-256: 7290deeb24d7cba5b298cb9cff98ff758f9024c089556d9dc3da079da16e5342
font_01_sfnt_off0000e832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE832 10136 bytes
SHA-256: 3d5fb30535cc8eb3523ddf0816e00b76f7201af0b1c6494b04f5e84f6f47f397