Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c7339f6c1a21a6…

MALICIOUS

PDF

67.4 KB Created: 2020-12-29 15:09:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5ecfe9f55cfcef97c27a2421940747c9 SHA-1: 28877e4f27cc33cc9d34c69f3769081cfb61c657 SHA-256: 56c7339f6c1a21a6fff257c1937867efa3747b65dfdb4739c3570cc0bbc6c763
96 Risk Score

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 0.9998

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://trafftec.ru/strik?utm_term=my+pillow+promo+code+hannity PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501962/normal_5fb7d8154a852.pdfIn PDF document text
    • https://cdn.sqhk.co/nosuterib/eWidBie/sputnik_russian_alien_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/bufutoje/UOhdgjy/21976444711.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/hje39hg/jefeminuzisurojopofe.pdfIn PDF document text
    • https://cdn.sqhk.co/kibizatududo/axuskhf/texas_state_tracs_mobile.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/fad7f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367665/normal_5f87682e2c02a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460070/normal_5fe2317ae379e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426688/normal_5fca54f96d2f9.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/buponuwebi/gezapomuxunedax.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/91589532951.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/duneviwijut.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/define_information_asymmetry_in_education.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/biodermis_silicone_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/free_scientific_books_download.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_off0000cab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB4 5336 bytes
SHA-256: 36bcef81ee8c9f562277bb093b4412eacfc6aac1abe8c24428018c9230ef11e8
font_01_sfnt_off0000dcca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCA 10652 bytes
SHA-256: 99b25bddfd74606111d49feceb9a992ef3a5d175bd4b0b01df9cb996d8b59f19