Malicious PDF — malware analysis report

Static analysis result for SHA-256 e414360606e565ab…

MALICIOUS

PDF

83.4 KB Created: 2021-05-24 14:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 73c62aa7a7cef9bdeb4adb2856f4e18f SHA-1: 82db03e4af050aaf0a90b89062115b241023482f SHA-256: e414360606e565abfb16fbfe9884136640cf077c02b404b199575d1e735a8fbe
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ML classifiers and ClamAV, specifically identified as Pdf.Phishing.Trojan. It contains an embedded URI pointing to a suspicious domain, 'bologen.ru', which is likely used to host malicious content or facilitate phishing. The document body is heavily obfuscated, but the presence of the malicious URL and the high confidence verdict strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/strik?utm_term=neuvaine+au+saint+esprit+pdf+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418191/normal_60062e412b17b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501810/normal_6056c0963b600.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/763ab30b-3a45-4f2c-a1de-b7626f8641e7/focusrite_scarlett_solo_studio_pack_g2.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/godrej_industries_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/tamilrockers_new_tamil_movies_free_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/51144852119.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/janapada_loka_information.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/fobagijusemuwubilajixaf.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/cbrn_officer_oer_support_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4f4bfaa-beaf-4d97-aefd-b60ee9d9e85c/mixabu.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/how_to_register_for_scouts.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/18856012354.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/basic_computer_troubleshooting_steps_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/how_to_make_simple_syrup_for_cake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/276b02c7-5284-4680-b240-6e3bffef5bb9/pipe_fitter_all_tools_name.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/contractions_spelling_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dd9938c-8659-4ab3-8851-2d8461533186/21490004121.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/pioneer_avic_x920bt_hard_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a8d3074-0207-4dfc-a3d6-0a73786441a9/keraka.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/josekafezuzuwemu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3C 5076 bytes
SHA-256: 8c9a33a5a2f266eff3ee1508495a3108e794d8a51176c9e768a3d34a3693df76
font_01_sfnt_off0000f08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08F 11944 bytes
SHA-256: 1ae86c0476dff5ff347e24449b8d43e6a9760041bd75f6f889c4cd24324e8689
font_02_sfnt_off00011675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11675 17372 bytes
SHA-256: 393782830dd97aa9107623f685d68213079dfb8fc4b3821bebd017037e23076b
font_03_sfnt_off0001300c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1300C 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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