Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e22b97cebae64ef…

MALICIOUS

PDF

75.4 KB Created: 2021-03-17 10:03:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 7a20dbc3a75a968511cb901c71320130 SHA-1: 87b0af796ef99410d10a7baa3df6262098527a75 SHA-256: 0e22b97cebae64ef99b0f96b1394d3fb2ca491d73a0cce0056ac133fa335150f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://pelibifir.ru/wix?keyword=creeper+world+3+unblocked', suggesting a phishing lure related to the game 'Creeper World 3'. The document body, though heavily obfuscated, contains metadata related to wkhtmltopdf and Qt, indicating it was likely generated by a tool rather than a standard document editor. The presence of multiple external URIs further supports the phishing and redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/wix?keyword=creeper+world+3+unblocked PDF link annotation
    • http://cardio-natural.info/46386284125z0l2k.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/lifetime_fitness_la_jolla_membership_cost.pdfIn PDF document text
    • http://igafnd.org/going_faster_mastering_the_art_of_race_drivingqo0rl.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/70361610785.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/banco_de_preguntas_ser_bachiller_2020_resueltas.pdfIn PDF document text
    • http://kurutog.mygamesonline.org/ansi_b16._5_standard.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://matowozor.epizy.com/performance_appraisal_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/guide_des_bonnes_pratiques_cliniques.pdfIn PDF document text
    • http://majerowi.epizy.com/fifty_shades_darker_final_cast.pdfIn PDF document text
    • http://kapezipejusabop.epizy.com/bapaxarisulijefudisena.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/cash_flow_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3965766-514f-4500-8a53-db1270bf1a6b/murray_brute_snowblower_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2eb5c7c-fc8c-4545-99eb-edfdfecb30e0/tascam_dp-24sd_digital_portastudio_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0934acc6-8a0b-45ec-83b0-9a0361171586/votubajiruxigesudasizev.pdfIn PDF document text
    • http://mafonevaverazux.atwebpages.com/vilomisasuv.pdfIn PDF document text
    • http://jowokepo.atwebpages.com/26368519612.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/danby_dehumidifier_error_code_ec.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/pokuwanebeli.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/61868157032.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_off0000ebcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCF 5044 bytes
SHA-256: 0b36a47713cd65075385cfc706dd4aae645af21ce75c349ec4c15c2ac858a0e9
font_01_sfnt_off0000fd19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD19 10564 bytes
SHA-256: 2448c59efe4abe254ea086f4f29bd652fcc3f04d136d990f88bcb7a76ac421f3

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