Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf46a2a3002b506…

MALICIOUS

PDF

71.5 KB Created: 2021-03-18 01:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d001a1f65b37da9f9470c3e78cd57ab8 SHA-1: d0a7ded46de2bc185a6de8bf781360fe68f2da71 SHA-256: ebf46a2a3002b506167f3f9a6932fb414b4529233f9f6e806d0c760d21b46b30
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically 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, suggests a lure related to an 'award'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/award?keyword=blessed+be+your+name+pdf+b
    • https://cdn.sqhk.co/nuzozuni/RtgcMcL/75737317773.pdf
    • http://psyhologrzn.ru/sakaviwoxatoluferefeveojsz.pdf
    • https://cdn-cms.f-static.net/uploads/4413975/normal_601853eda20da.pdf
    • https://cdn.sqhk.co/wujugojuse/hogcBgi/94682562683.pdf
    • https://cdn-cms.f-static.net/uploads/4408004/normal_601eddff7f0c5.pdf
    • http://pokemonrivals.online/what_can_you_eat_on_shred_10thip0.pdf
    • https://cdn-cms.f-static.net/uploads/4426415/normal_603aca658b3e8.pdf
    • http://bexixibeguben.sportsontheweb.net/esercizi_sull_analisi_logica.pdf
    • https://cdn.sqhk.co/tepikipo/hgZibhc/latest_eclipse_zip_file.pdf
    • https://cdn.sqhk.co/sojowidaz/gdPhdiG/4666966081.pdf
    • http://itravelimpressions.com/animal_farm_summary_chapter_47rgum.pdf
    • https://cdn.sqhk.co/sesexibanobu/icii4ja/million_tomans_to_usd.pdf
    • http://mexawolin.medianewsonline.com/joxomebifarogetawujodiw.pdf
    • https://static.s123-cdn-static.com/uploads/4485163/normal_5fe0550e88c1e.pdf
    • http://desokore.medianewsonline.com/16513727700.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jemisajoda/duvirawisovifupoxuse.pdf
    • https://uploads.strikinglycdn.com/files/54154790-117a-435e-a149-9121bdb140fb/pl_travers_books_for_sale.pdf
    • https://s3.amazonaws.com/xamibudasagas/26413412474.pdf
    • https://uploads.strikinglycdn.com/files/5b1f8115-e9c8-4434-97d8-e08ee00d5775/custom_ranger_boat_covers.pdf
    • https://uploads.strikinglycdn.com/files/f4a28e89-3d12-4a85-be30-c63a9079bd4b/lofthouse_whitewash_brick_effect_tiles.pdf
    • https://s3.amazonaws.com/wanasuvedigo/21892074948.pdf
    • https://uploads.strikinglycdn.com/files/0de112ef-088e-46fc-a6cd-3f8d45fc3fad/what_is_russian_alphabet_called.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4d2.bin
5adddfb1d88d494f7728ec9ef7f41c6ebf99dbb231d9c9e8f1a07b39573d71ba
pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D2 5480 bytes
font_01_sfnt_off0000e75f.bin
c280a15fb60a675e75fbefb7fb91ed5dd547b88d8beb859c6f5396b5b1d4a0b3
pdf-font-stream PDF embedded font (sfnt) at offset 0xE75F 12492 bytes