Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e5385a7eaadf2d…

MALICIOUS

PDF

74.5 KB Created: 2021-02-06 01:28:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: f110e7a2dc91fa934a270174d8b9f465 SHA-1: b53f8624a431da1a3cd53823a3a7bb0744b1bc1d SHA-256: c9e5385a7eaadf2def1075f1eb1283ab0d7588958522b39c32eebb3b19e93dac
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further support this assessment. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect users to potentially harmful content, likely for phishing or malware delivery.

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://maypoin.ru/123?utm_term=como+se+vestia+en+los+80+hombres PDF link annotation
    • https://ninuwekij.weebly.com/uploads/1/3/4/6/134625354/xevijawoxi_ridararevujemum_zawowunenupunu.pdfIn PDF document text
    • https://gabodubelekopo.weebly.com/uploads/1/3/4/3/134356924/kakuxununin_kigow_lakalasonopogar.pdfIn PDF document text
    • https://kobalogowitat.weebly.com/uploads/1/3/0/7/130776452/1191751.pdfIn PDF document text
    • http://cuzinfo.ru/accounts_receivable_aging_report_sample0nmko.pdfIn PDF document text
    • http://strgb2.ru/ableton_9._5_crack_mac788b3.pdfIn PDF document text
    • http://podarokinsta24.online/khan_academy_mcat_biochemistry_noteskigjh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392463/normal_60148fc3dcb49.pdfIn PDF document text
    • https://cdn.sqhk.co/sezunofubuzi/hphf0gc/1080p_picsart_cb_background_hd_new_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/susojareb/RhbPJJt/khan_academy_eureka_math_5th_grade.pdfIn PDF document text
    • http://nefritthebestthing.site/78328867053brdan.pdfIn PDF document text
    • https://cdn.sqhk.co/vabolepibe/jvGggju/stick_war_2_hacked_version.pdfIn PDF document text
    • https://cdn.sqhk.co/nopavoboriru/hfemhfm/remove_unwanted_objects_from_photos_app_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371497/normal_5fcdbde33be69.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/hjbxRgj/82545534505.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/gujutavevive/bicycle_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/sheetal_s_hair_beauty_laser_clinic_london.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/18219449635.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/learn_arabic_words_with_english_meaning.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_off0000e438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE438 5364 bytes
SHA-256: f685529d47b517d3d2ffc0f014c00d020d7baaf7db28906c83c67bfbf456e350
font_01_sfnt_off0000f643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF643 11220 bytes
SHA-256: 4d5e179ef86521998f279c24ba2672976b9e1ae3f017a4277fb5a67a90c96103

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