Malicious PDF — malware analysis report

Static analysis result for SHA-256 321b8ee502362132…

MALICIOUS

PDF

73.1 KB Created: 2021-02-24 16:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1c3ca08d22b5a640f1e7e137504c604e SHA-1: dffc06c5eb445f34d86899649d93c6a533e10899 SHA-256: 321b8ee5023621326b93c65f48e9d900e6c05bc1af32514f970f5402d22b15e6
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://druttle.ru/wix?keyword=animoji+apk+download PDF link annotation
    • http://arendaavto.taxi/how_to_find_your_passion_worksheetgqea6.pdfIn PDF document text
    • http://pifumufupes.iblogger.org/filling_pieces_shoe_size_guide.pdfIn PDF document text
    • http://mxbur.fun/what_does_it_mean_to_be_an_effective_citizen_in_a_democratic_society_in_the_21st_centuryecii0.pdfIn PDF document text
    • http://blaugrana.ru/61180229371o1ydp.pdfIn PDF document text
    • http://bullbananavannaone.xyz/ignou_clinical_nutrition_bookvoe3d.pdfIn PDF document text
    • http://circleshtang.xyz/xupovodaperexukusadidarajrgk6.pdfIn PDF document text
    • http://technodom11.com/how_to_calculate_brine_solutionk7mgp.pdfIn PDF document text
    • http://vittorguxx.site/99572908773fwx6k.pdfIn PDF document text
    • http://winclean-shop.space/future_fight_wolverine_epic_quest_guidex4dxd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443362/normal_601a486d1fa72.pdfIn PDF document text
    • http://idealica-ordina.site/36615676502izkcp.pdfIn PDF document text
    • http://ewop.space/26773573752q50xt.pdfIn PDF document text
    • http://pixxel.life/dinah_zike_science_foldableshde4h.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rubuvajaroxe.epizy.com/template_ppt_tumblr_free.pdfIn PDF document text
    • http://pizodixevefok.rf.gd/angular_5_form_validation_number.pdfIn PDF document text
    • http://tifuwonojize.epizy.com/follow_me_david_platt.pdfIn PDF document text
    • http://gipuluzew.rf.gd/thriller_english_movies_free.pdfIn PDF document text
    • http://nunevubedodunu.rf.gd/gejiwaxonegasuzeg.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_off0000e3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A1 5052 bytes
SHA-256: cafb30dff72219806f0ca0c87e46c02f2cdb9f8274602b10e81e94e43d71d4df
font_01_sfnt_off0000f4d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D5 10112 bytes
SHA-256: dc62d2e4f05b162e6b29b8253a83b4bfca699f43efd74aa6b9fc62c485bebe26