Malicious PDF — malware analysis report

Static analysis result for SHA-256 bafbd45a6a85b3bf…

MALICIOUS

PDF

85.2 KB Created: 2021-04-03 12:17:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: a5414feb13117d9829b0fa4451ffa152 SHA-1: 80e0888bb42f0670f246b35a7ee59ddbc85493b2 SHA-256: bafbd45a6a85b3bf869d42520de5bc304b06515475418a5052b789b6f2acb615
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded URLs and is flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The ML classifier also strongly indicates maliciousness. The document body, though heavily obfuscated, appears to reference a game walkthrough, suggesting a lure to a malicious URL for phishing or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/wix?keyword=zelda+parallel+worlds+remodel+walkthrough PDF link annotation
    • http://kotudekudoges.getenjoyment.net/aldous_huxley_livros_em.pdfIn PDF document text
    • http://mugurapit.sportsontheweb.net/how_to_write_a_book_review.pdfIn PDF document text
    • http://zedateve.mypressonline.com/al_fatihah_dan_artinya.pdfIn PDF document text
    • http://siwexisikig.22web.org/8140890681.pdfIn PDF document text
    • https://cdn.sqhk.co/lelogivotosu/iXXheig/55582702095.pdfIn PDF document text
    • http://nigemutekilum.mypressonline.com/cfp_tax_planning_study_material.pdfIn PDF document text
    • https://cdn.sqhk.co/risubibasero/dEibifV/dabegaf.pdfIn PDF document text
    • http://nubigawe.22web.org/blank_space_audio_song_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • http://novosumagib.epizy.com/cms_provider_billing_guidelines.pdfIn PDF document text
    • http://kafokenenore.rf.gd/formato_apa_tesis_ejemplo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7655982-f4f5-47c4-9fbd-c5791227c03b/all_verb_list_a_to_z.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/816892a7-f1f7-4879-bc77-fb9b92b8d543/what_is_the_remote_code_for_samsung_soundbar.pdfIn PDF document text
    • http://binuwuzipu.myartsonline.com/el_genitivo_sajon_en_ingles_ejercicios.pdfIn PDF document text
    • http://bemabam.myartsonline.com/stc_1000_problems.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b88b9e3-3553-4649-bfdf-7a58ced7fd00/why_does_my_brother_wifi_printer_keep_going_offline.pdfIn PDF document text
    • http://nupuzasig.epizy.com/basement_car_park_design_guide.pdfIn PDF document text
    • http://taxolume.rf.gd/google_play_store_showing_pending.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be1fb6ab-ab1a-4041-ae73-abd19d49646e/how_to_get_pay_dividends.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ebf388d-4d49-4929-aeea-ddab8d49c6c3/what_training_do_you_need_to_be_a_real_estate_sales_agent.pdfIn PDF document text
    • http://xekabotiwuker.atwebpages.com/13030832732.pdfIn PDF document text
    • http://povivubezili.rf.gd/skb_spd_sx_case.pdfIn PDF document text
    • http://palelezugob.onlinewebshop.net/38127006920.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001031a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1031A 5484 bytes
SHA-256: 54ab1af94f2d363348121274607a0248e138212beed09f8696d4632404f64804
font_01_sfnt_off000115a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115A6 4056 bytes
SHA-256: 727a455b1adc1aaf602c0b23c244b30a7b929fca7e527d3c612e6176b76d231a
font_02_sfnt_off0001224a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1224A 10756 bytes
SHA-256: f1631faf237a85fe20842e3440ea8fa87a9bb6f8b8676d7dbba61e129f2c71a3

Open this report in the interactive analyzer, or submit your own file for analysis.