Malicious PDF — malware analysis report

Static analysis result for SHA-256 825e17b7eab6641f…

MALICIOUS

PDF

65.5 KB Created: 2021-03-30 17:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 858344234f480549e18a6f2e98155fa6 SHA-1: c7d78cbed7eaae3c8005ca9af77f4f5a2f8008b4 SHA-256: 825e17b7eab6641f24e909c5c429a5c7bddc07dd33f67ae66db9d522ee599123
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jottigo.ru/award?keyword=worldview+4+pdf PDF link annotation
    • http://vuvefezod.iblogger.org/asurion_phone_claim_affidavit_att.pdfIn PDF document text
    • http://ximasoj.22web.org/contributory_factors_to_reported_road_accidents.pdfIn PDF document text
    • http://leree6.club/fajobajeninitiwitojnvruf.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://im-marceting.site/dark_blue_denim_jacket_womens_outfito48cl.pdfIn PDF document text
    • http://lishop.site/how_do_i_reset_my_samsung_vrt_plus_washerjczqi.pdfIn PDF document text
    • http://remastacer.com/descartes_meditation_1_quotesaxltg.pdfIn PDF document text
    • http://titanovyi-filtr.ru/altered_carbon_season_1_episode_5_recapa3wc6.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/c3e13fb3-0b97-408e-9680-eea14eb5cbd0/lutazote.pdfIn PDF document text
    • http://verizukavorili.rf.gd/cassida_5520.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/togaferemumofedi.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/70364029205.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/wesidelugevifu.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/14429164945.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/itunes_free_for_pc_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/vupakubugosafabog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ffdd1f3-50fb-44e8-8ca7-47ad03254096/how_to_use_element_roku_tv_remote_and_wifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74423dd1-3480-482f-84ab-9ae82b35a79e/30868874232.pdfIn PDF document text
    • http://genoropafetado.epizy.com/34187647729.pdfIn PDF document text
    • http://xunevonobi.epizy.com/14383674375.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f849ca-c4be-454a-ae93-05209b0a83d0/colored_pencil_techniques_flowers.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/sefumixepixalegisotak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dea2f7c-eb18-425f-9429-172024e9ba5f/59916383897.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_off0000c28f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC28F 4900 bytes
SHA-256: 37ac40c71671916cf7de249a6857e6ff7a19f96c38fa11f201091cbdc2050cf6
font_01_sfnt_off0000d36c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD36C 11120 bytes
SHA-256: 5ec165d8c6d0dd3065e9f8e6ffb0dab1b4592be1c9ca6e9aea5e1bd0484d8a77