Malicious PDF — malware analysis report

Static analysis result for SHA-256 103efdcd70d9fa70…

MALICIOUS

PDF

82.6 KB Created: 2021-02-28 23:40:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 22b5595999dda9fe57a09cf9ded0d06d SHA-1: e723c552e3718c0472f5efe7d37be806a71b6955 SHA-256: 103efdcd70d9fa707c50d41ebb689337d6842f237a6c3db96bf662aa8f922b39
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 0.9998

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://mezovuduw.ru/strik?utm_term=2006+6.0+powerstroke+engine+torque+specs PDF link annotation
    • https://muxasikij.weebly.com/uploads/1/3/1/8/131872285/56d1af.pdfIn PDF document text
    • http://pubgucbayim.com/76363441430np9xb.pdfIn PDF document text
    • http://tesepaxe.iblogger.org/ruwoju.pdfIn PDF document text
    • http://tinonijo.iblogger.org/jadawokaz.pdfIn PDF document text
    • http://roflan.site/woxixujpfoq3.pdfIn PDF document text
    • http://tevutubiwij.getenjoyment.net/by_the_waters_of_babylon_part_1_analyzing_setting_quiz_quizlet.pdfIn PDF document text
    • http://makamar.tech/pajesimifhnf0o.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/newiwanevipamonuvepod.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/jfCTjE1/siren_head_roblox_gameplay.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://sajokibor.epizy.com/jofunun.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/alchemist_code_beginner_guide_reddit.pdfIn PDF document text
    • http://sijadogif.atwebpages.com/2020_ktm_690_smc_r_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/betuxavagaxaporuxu.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/25417437921.pdfIn PDF document text
    • http://zusujijotajirun.epizy.com/mailchimp_annual_report_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/simple_machines_inclined_plane_worksheet_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE969 5388 bytes
SHA-256: 53e0eb7f60c5d2b6f09a9e8bd412c9fe3ba93c111f88ca85b87e26503bb1ea55
font_01_sfnt_off0000fbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE4 16344 bytes
SHA-256: f6b4c95522230eb588fda190407fbd585259fef507f262f4128e87201aafa8e8
font_02_sfnt_off00012ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EE8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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