Malicious PDF — malware analysis report

Static analysis result for SHA-256 30404bd9be390cf8…

MALICIOUS

PDF

84.0 KB Created: 2021-04-27 21:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 04700548bcb19afcc7be2f49c16970df SHA-1: 7d5913004aeee79fff52ac6fb4cb5356062de52f SHA-256: 30404bd9be390cf846fe0327be928da5342fad17b38123228f1da911726ffc7e
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains references to product names, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/strik?utm_term=sabertooth+990fx+r2.0+motherboard PDF link annotation
    • http://naturelofo.mypressonline.com/nespresso_machine_lattissima_one_review.pdfIn PDF document text
    • http://tarofolezebinu.iblogger.org/lolevadubavilazunotedume.pdfIn PDF document text
    • http://1xbets-regs.site/texecom_premier_24_installation_manualkijje.pdfIn PDF document text
    • http://xazamobi.66ghz.com/pokuterimadajosuvozik.pdfIn PDF document text
    • http://it50disconto.info/google_brand_guidelines_logoudtsy.pdfIn PDF document text
    • http://galosidijixiwu.mypressonline.com/building_construction_materials_book.pdfIn PDF document text
    • http://namafafiteg.mypressonline.com/biosintesis_de_auxinas.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/43be2ac2-3e66-4db6-b604-0e27e75a9135/harman_pellet_stove_parts_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c702f723-02ea-4591-93c9-86719d77f287/tokyo_ghoul_season_1_ending_scene.pdfIn PDF document text
    • https://s3.amazonaws.com/moduluzuxikari/what_is_the_greysheet_food_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/22820792344.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/offline_bible_commentary_free.pdfIn PDF document text
    • http://wosezime.epizy.com/67289840566.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/can_you_make_iced_tea_in_a_coffee_maker.pdfIn PDF document text
    • http://kopolug.myartsonline.com/stanley_garage_door_opener_repair.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8526cad-473c-4893-a194-6a147983caef/descargar_pelicula_un_puente_hacia_terabithia_en_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62bf7a22-a980-43dd-b05b-b1356bc06eee/76514450030.pdfIn PDF document text
    • http://fobunedofakane.rf.gd/37924880944.pdfIn PDF document text
    • http://xamijofut.rf.gd/whirlpool_gold_dishwasher_maintenance.pdfIn PDF document text
    • http://famomijis.onlinewebshop.net/xalaviberotefem.pdfIn PDF document text
    • http://valamujunitun.epizy.com/vujaxadekimel.pdfIn PDF document text
    • http://bixikaw.epizy.com/fruitful_drinking_ielts_answers.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_off00010644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10644 5712 bytes
SHA-256: 94dc7a3d1341be2e24504b8bc2d32a51c82ebf44025df277e32c85fba29f393f
font_01_sfnt_off00011992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11992 11568 bytes
SHA-256: ffa87f7face4fa61b93baca3d2633ff221ba177c1c1d0a05970e35bf1218e15f

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