Malicious PDF — malware analysis report

Static analysis result for SHA-256 1385c4540f8dd0ea…

MALICIOUS

PDF

87.9 KB Created: 2021-03-18 12:19:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 926392f3a7f934833c5b2997338c3d8c SHA-1: 19b1b727a59fd2774ffc6b7269593e2215c9f0a7 SHA-256: 1385c4540f8dd0ea84d33e9df840d41582c2b106effeb2a666ecfa78900eb599
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 0.9993

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://ponafet.ru/strik?utm_term=avoiding+conflict+management+style+definition PDF link annotation
    • http://bivaxosufuxibo.mygamesonline.org/what_are_the_primary_differences_between_tcp_and_udp.pdfIn PDF document text
    • http://zodimasar.mypressonline.com/is_naclo4_an_acid_or_base_or_salt.pdfIn PDF document text
    • http://raicen.com/167968334664enwa.pdfIn PDF document text
    • http://boothattendant.com/pig_heart_dissection_lab_worksheetwh15e.pdfIn PDF document text
    • http://allerop.xyz/how_to_show_ruler_in7rv46.pdfIn PDF document text
    • http://blekrossi.ru/42998488108e1xtm.pdfIn PDF document text
    • http://larijasetejupaz.mypressonline.com/core_clinical_cases_for_medical_students.pdfIn PDF document text
    • http://dawezedelofeda.scienceontheweb.net/bajovezex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485578/normal_6047ac51c266d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409118/normal_5fc9aa12bf291.pdfIn PDF document text
    • http://trokot-online.xyz/lawisibexoxegapagovafokgahcl.pdfIn PDF document text
    • http://tryadasert.online/what_does_take_2_tablets_by_mouth_as_a_single_dose_meanx43l5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450889/normal_5fd871a54cd03.pdfIn PDF document text
    • http://ig-verifiedsbadge.com/25013012175he6hw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369512/normal_5febd1b84a503.pdfIn PDF document text
    • http://return-0.com/vasavopisiworuvavowodad6x7t.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/xakajoziwibi/55754957810.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/fuzaguremewukazosowiwaju.pdfIn PDF document text
    • http://xutenujute.myartsonline.com/43348399276.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/ncaa_division_2_conference_carolinas.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/9126003367.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/benzodiazepine_withdrawal_scale.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/pazibakaligawurulemusa.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/baldurs_gate_2_hexxat_romance_guide.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_off00011831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11831 5396 bytes
SHA-256: 11148d3933b204fe2b460baaf5f87601fecf02e74251c187febbdd462b28e009
font_01_sfnt_off00012a92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A92 10928 bytes
SHA-256: c5462d5952bfaa7eed3718dbe8f8d2b059238bbadbf6fca31a3a20c797ebd3f3

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