Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5779073aa05d937…

MALICIOUS

PDF

77.8 KB Created: 2021-04-01 18:20:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 065d48a926c242b40cc8ca7ed301bc15 SHA-1: 5588ef96055c19915befba2c0ea270864fea3ef5 SHA-256: e5779073aa05d9379f1f9250979c387d637bf6ce1e6c9ce7b48746ae32c8ff1d
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 0.9997

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://gimoguvi.ru/award?keyword=defensa+siciliana+variante+najdorf+pedro+cherta+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419832/normal_603d058a4bdfc.pdfIn PDF document text
    • http://freshmind.net/ben_10_alien_run_game_download_apkpurev31ur.pdfIn PDF document text
    • http://idealicaitaly.site/pubg_lite_vcruntime140._dlledxaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475872/normal_6053198f6642b.pdfIn PDF document text
    • http://tenp-mail.xyz/ninja_spring_cartoonfu7r4.pdfIn PDF document text
    • http://tipografiyav.moscow/adobe_illustrator_cc_2017_skills_tes9yi4w.pdfIn PDF document text
    • http://miiliioner.xyz/57762452569gu040.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419827/normal_5ff7dc36da61a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_6032d325c791a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368964/normal_5ff9acff026f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xexerekiw.rf.gd/angular_form_control_set_default_value.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/14675851926.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/gym_membership_contract_template_free.pdfIn PDF document text
    • http://jopakete.rf.gd/jindal_aluminium_sheet_weight_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/94630307768.pdfIn PDF document text
    • http://nuwuzokapa.rf.gd/wasofekemito.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/driving_test_study_guide_new_jersey.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/anfangen_perfekt_form.pdfIn PDF document text
    • http://kuzibawo.rf.gd/86465025879.pdfIn PDF document text
    • http://pazixurofuni.epizy.com/pdf_to_word_converter_online_free_download_zamzar.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_off0000ec93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC93 5376 bytes
SHA-256: ebc3c2d411970016c9dd500cc3c6faea85d6d51ff3823d4ac760b51f6feffe30
font_01_sfnt_off0000feef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEEF 12516 bytes
SHA-256: bdb76e5be71c6ef6752af471e93f914c1fd3f1369b10213c0790f34f05176b28

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