Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce8d2fcf4183bcd…

MALICIOUS

PDF

81.7 KB Created: 2021-04-21 16:25:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 3ba5c9b88bdd610ec3ed1237ef9bb451 SHA-1: 3cedfa2341fe9b2f24a7ac91d5d7b6b59f5c0339 SHA-256: 0ce8d2fcf4183bcdfa24bd042fa47bcfdb7ba11f44cc87d043487cfe8837f17d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and numerous other URLs were extracted, many of which are unknown or potentially malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/strik?utm_term=sad+love+story+movies+list+bollywood PDF link annotation
    • http://1offpark.xyz/94643349307tz3e.pdfIn PDF document text
    • http://makedctl.site/john_day_river_steelhead_reportp1cwg.pdfIn PDF document text
    • http://itayoga.space/cub_cadet_lt1050_hydrostatic_transmission_problemsgrpgm.pdfIn PDF document text
    • http://umkatrade.ru/white_and_rodgers_thermostat_manual_1f80-361iw4o3.pdfIn PDF document text
    • http://wtia.space/89176580437d76g9.pdfIn PDF document text
    • http://hot-money.fun/parenting_from_the_inside_out_by_daniel_j._siegelp3ijw.pdfIn PDF document text
    • http://uscreditmonitoring.info/what_fruits_are_allowed_on_the_dash_dietvis9v.pdfIn PDF document text
    • http://nalutomabesuso.iblogger.org/pdf_to_word_converter_not_editable.pdfIn PDF document text
    • http://fimewot.xyz/jodugitajasegofid524r.pdfIn PDF document text
    • http://kapuwapow.iblogger.org/mukezugaxozekuxa.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/fedufiporara/the_power_of_prayer_and_fasting_verses.pdfIn PDF document text
    • http://nuruden.rf.gd/15330425317.pdfIn PDF document text
    • http://lezebotetojezaz.epizy.com/delegation_of_financial_power_rules_2020_download.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/xenagegafog.pdfIn PDF document text
    • http://sexikajizetux.rf.gd/molecules_and_molecular_compounds_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/20478510502.pdfIn PDF document text
    • http://kukadafimi.rf.gd/xevukafudiromitudo.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/national_glamour_day_shopping_guide_kopen.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/14886441692.pdfIn PDF document text
    • http://xodupope.epizy.com/ambient_weather_clock_manual.pdfIn PDF document text
    • http://tabarok.rf.gd/89963557806.pdfIn PDF document text
    • http://lenigabemez.epizy.com/application_of_vsepr_theory.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9C 5468 bytes
SHA-256: 53c10e537c3f10c5d5990cd25dc1d6b02efa263b0b1164771af793bd1d602d9b
font_01_sfnt_off0000fe3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3C 10896 bytes
SHA-256: 82e7f9f11fbc607bb64f2aa107cbd3b97002be893b30a978fe4f42aa318d5fe2
font_02_sfnt_off000123da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123DA 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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