Malicious PDF — malware analysis report

Static analysis result for SHA-256 264c160b9a0f7347…

MALICIOUS

PDF

95.3 KB Created: 2021-02-06 21:03:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 1033483f58a5f155a2208ce902e7c3cf SHA-1: 92e568f26b881470a07a0254b58b18f7ae86f608 SHA-256: 264c160b9a0f7347ca4496c93511c32e35fa9cc223c67a8c103936b00f379782
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'feedback report writing template'. The presence of an external URI pointing to 'bologen.ru' further supports a phishing or credential harvesting attempt. No scripts were extracted, but the PDF structure itself likely contains malicious JavaScript to facilitate the attack.

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://bologen.ru/aws?utm_term=feedback+report+writing+template PDF link annotation
    • http://confirmationhelpcenter.com/maserati_quattroporte_trofeopxs90.pdfIn PDF document text
    • http://reduslimitaly-official.site/2016_olympics_track_and_field_schedule1a8zy.pdfIn PDF document text
    • http://bestsalestoday.xyz/myeconlab_answers_chapter_5sbfno.pdfIn PDF document text
    • http://mmamba.ru/49536885641dfb0o.pdfIn PDF document text
    • https://rofujerejikuf.weebly.com/uploads/1/3/5/3/135388349/43ed2be99826e.pdfIn PDF document text
    • http://2022god.com/kilitaphhce2.pdfIn PDF document text
    • http://brosbass.com/fur_elise_jazz_version_sheet_musichmxjo.pdfIn PDF document text
    • http://coloradocustomelectric.com/916094519y5tlp.pdfIn PDF document text
    • http://hookup671.site/cosmopolitan_ice_rink_costcvgfv.pdfIn PDF document text
    • http://ndfnasg.xyz/663544420132s0hr.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/robumuduluwise/can_you_netflix_movies_on_laptop.pdfIn PDF document text
    • http://detotoga.epizy.com/magazine_layout_templates_for_indesign_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/68503665021.pdfIn PDF document text
    • http://bujitajaxo.epizy.com/reservation_form_hotel_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/netflix_mod_apk_from_techola._net.pdfIn PDF document text
    • http://rawuvotatu.rf.gd/tchaikovsky_nutcracker_suite.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/88223882845.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000135d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135D4 5464 bytes
SHA-256: c4a3155f78af7d07e2a9364ff5156735ceb4465e9866207de1c4116ff3ad785f
font_01_sfnt_off0001486d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1486D 11544 bytes
SHA-256: 73319f2eeea315465d2238c565376c7099ab853a5572bb755a3c8c7c8d9fb505

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