Malicious PDF — malware analysis report

Static analysis result for SHA-256 519e14cc0e0ba490…

MALICIOUS

PDF

78.5 KB Created: 2021-04-21 18:12:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8fc9b71a638e4420b313a307936b9e19 SHA-1: e85b98ccb556b86c33c7db4c278b351ddfd94ee3 SHA-256: 519e14cc0e0ba4907b1e782d9c85ea01e81c4fc3e024c1e7341884efe62d797e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to be a lure related to food preparation, aiming to trick the user into clicking the malicious link.

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://midufefew.ru/strik?utm_term=how+long+does+it+take+to+make+beef+jerky+in+a+food+dehydrator PDF link annotation
    • http://moresukko.ru/how_to_unlock_tracfone_lg_classic_flipyqb17.pdfIn PDF document text
    • http://sberpodarok2020.online/kinodufumuneronajifujudeszh47b.pdfIn PDF document text
    • http://sewakasatixori.medianewsonline.com/11624441265.pdfIn PDF document text
    • http://good-production17.site/hozier_take_me_to_church_free_downloadfb5g7.pdfIn PDF document text
    • http://detonic-ordina.website/degogufofoy5dpv.pdfIn PDF document text
    • http://vowewudimo.mypressonline.com/6200500982.pdfIn PDF document text
    • https://zorisurirumu.weebly.com/uploads/1/3/4/6/134600588/gomoluroronaw.pdfIn PDF document text
    • https://siroxaje.weebly.com/uploads/1/3/4/0/134000026/ziluzoxikex-gabij-kuwuvapodifiri-petovuwo.pdfIn PDF document text
    • http://yoganchik.space/free_fake_towing_receiptpv6fl.pdfIn PDF document text
    • http://persequen.com/legend_by_marie_lu_series_in_ordero5z2n.pdfIn PDF document text
    • http://mekujoviwe.mypressonline.com/3259281860.pdfIn PDF document text
    • http://ccckkkkk.space/divinity_original_sin_2_best_talents32yvv.pdfIn PDF document text
    • http://xozonline.ru/83582633636f9ylf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/excel_2013_bedingte_formatierung_ampel_datum.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/mopom.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/mtd_20_inch_push_mower_wont_start.pdfIn PDF document text
    • http://mujebik.atwebpages.com/beckmann_and_ling_s_obstetrics_and_gynecology_8e.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/876e2c06-43c0-47d3-8c80-beb0aa42ff11/wakokelewizopaxexixufudes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c6bceb-5a92-49f7-b1d9-0cc55fde934c/dune_imperium_board_game_rules.pdfIn PDF document text
    • http://sorisavitekinuj.onlinewebshop.net/53434828565.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69974052-54ff-4ef8-907a-eb2a0a88aa04/tevibomivadixutu.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/89425851469.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_off0000f329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF329 5756 bytes
SHA-256: 5e594f28d131775ae1cd25bae6ab2bca70f71a10ea64fc462bb40c14d83d618a
font_01_sfnt_off000106b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B8 11004 bytes
SHA-256: 905f32f511d2d955b6490c43fa1660d337af14e7d01734cfa059d0ee2462d657

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