Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d7652a429c80a4…

MALICIOUS

PDF

72.2 KB Created: 2021-02-28 04:23:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 56d384190af0c71f6aa88555496d8445 SHA-1: ce2c41ca4a50574d95a6fec1da086faf76e6039e SHA-256: 79d7652a429c80a4a2800fcde8019e03bf8ae4eb4e0f1c272686aca13888ad4c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/award?keyword=what+is+dormir+in+english PDF link annotation
    • https://kezidixujaroko.weebly.com/uploads/1/3/4/0/134040737/3792833.pdfIn PDF document text
    • https://nabovuguxobe.weebly.com/uploads/1/3/1/8/131871891/6975155.pdfIn PDF document text
    • https://dupafubakatato.weebly.com/uploads/1/3/5/9/135961249/1245597.pdfIn PDF document text
    • https://dovidememalow.weebly.com/uploads/1/3/4/6/134601329/lobipoxefaxot.pdfIn PDF document text
    • http://guwadoraji.22web.org/what_is_a_planning_process_model.pdfIn PDF document text
    • http://odemebayisitrafik.com/sas_negative_binomial_regression_analysisldbly.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/bhadra_lakshmi_stotram_lyrics_in_telugu.pdfIn PDF document text
    • http://kmikaerfs.ru/5561987024437ca2.pdfIn PDF document text
    • https://wexikapej.weebly.com/uploads/1/3/0/8/130874413/2212263.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tonataf.epizy.com/nedareledufipijuveleg.pdfIn PDF document text
    • http://pesetunal.onlinewebshop.net/85653643935.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/wetebepefum.pdfIn PDF document text
    • http://wirodugapilab.epizy.com/85183505634.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/86994064324.pdfIn PDF document text
    • http://gonaviniji.epizy.com/bumblebee_transformers_1_car.pdfIn PDF document text
    • http://jaxunukologefis.onlinewebshop.net/mafeziratiwesetewutox.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/80_day_obsession_meal_plan_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/playerunknown_s_battlegrounds_key_free.pdfIn PDF document text
    • http://dezinolabebosod.atwebpages.com/unreal_engine_4_fps_tutorial_c.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_off0000dd26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD26 5252 bytes
SHA-256: 8729d71ea37b08cb922d7a399e636b8b6be968e884cb6d2e16ea1edcdf12e0bd
font_01_sfnt_off0000eee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE1 10908 bytes
SHA-256: d85958741c81e923fda4c4017de1bd0952e222cda1a5da92575c8675c17aa9fb