Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01f327f73e92190…

MALICIOUS

PDF

86.2 KB Created: 2021-03-22 08:26:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 337f7176edc0626bec931a8936451a88 SHA-1: 503744a2acf4de6a6c4602c81d1c0027293b27c6 SHA-256: c01f327f73e92190199e8783fb38228c3a0a7a8f3bf7793ef86a7d71493dac0d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://dugedepap.ru/strik?utm_term=characteristics+of+information+retrieval+system+pdf PDF link annotation
    • http://sawemawe.mywebcommunity.org/critical_analysis_of_the_lottery_by_shirley_jackson.pdfIn PDF document text
    • http://gifagudilul.mypressonline.com/how_to_calculate_the_break_even_point_of_a_business.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419644/normal_600fe3693567f.pdfIn PDF document text
    • http://mevakimuvu.mypressonline.com/liutprand_of_cremona.pdfIn PDF document text
    • http://enots.space/49469552045a9k4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455681/normal_604c967075851.pdfIn PDF document text
    • http://profyhouse.ru/how_much_is_the_dyson_v7_at_costcom70eu.pdfIn PDF document text
    • http://chebsvet.ru/97579664015hj306.pdfIn PDF document text
    • http://lonukadezejitiz.22web.org/asu_computer_science_major_map_2019.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/lizuseguwix/pajularudugo.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/jeripeninumuvi.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/what_is_chi_gong_breathing.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/attachment_of_earnings_order_court_form.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/best_drums_rudiments_to_learn.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4f41dfa-f7b7-46b6-8f88-e08a783f99e7/roxilefil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27fd5ab1-5562-4b98-a4ae-07a4fc79bd52/el_hobbit_3_pelcula_completa_en_espaol_latino_online.pdfIn PDF document text
    • http://netuvorib.epizy.com/90784627292.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_off0001111b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1111B 5460 bytes
SHA-256: b2636d050813b12e8e615f4e37e460568543c3e963c0061cb59a6a1e6e8ab98c
font_01_sfnt_off0001238d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1238D 12004 bytes
SHA-256: 3edb0b70731d83e2160942fbb7f3e8363187f4c1ed7e0002f510a5b27b64492d

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