Malicious PDF — malware analysis report

Static analysis result for SHA-256 056e7c0ac338759a…

MALICIOUS

PDF

78.7 KB Created: 2021-03-29 10:02:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 32af094e1cd5d1b793685654b101dbd7 SHA-1: f66c6aaeefe40b7ca09074f2bfeb78f0bf40ce17 SHA-256: 056e7c0ac338759a86f5c89d771ec2c69c8be3f0c60b921c06ba4f927282044b
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of an embedded URI pointing to 'druttle.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into visiting a compromised site.

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://druttle.ru/123?utm_term=cappuccino+song+free++2019 PDF link annotation
    • https://cdn.sqhk.co/dusujukakal/iXm0iah/fallout_4_spectacle_island_house_mod.pdfIn PDF document text
    • http://triple-doska3.club/1075582381nl0re.pdfIn PDF document text
    • https://cdn.sqhk.co/jarogofef/aTAMjhA/stick_nodes_stickman_animator_pro_download.pdfIn PDF document text
    • http://dominis.xyz/what_are_the_4_stages_of_piagets_cognitive_developmentv00xf.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/DjdCjaT/16790544514.pdfIn PDF document text
    • http://pidejofejan.iblogger.org/jufaxiseselez.pdfIn PDF document text
    • https://cdn.sqhk.co/xumelesep/idKXrpq/clumsy_ninja_mod_apk_no_obb.pdfIn PDF document text
    • http://goproits.com/laramiwivezh81i.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/hI2Gjg3/samurai_kazuya_idle_tap_rpg.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://s3.amazonaws.com/jugobimuraje/19800353194.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/96848273818.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/94582836457.pdfIn PDF document text
    • http://saxuwomepeboke.epizy.com/kimopexovamudosuzad.pdfIn PDF document text
    • http://kumibapu.epizy.com/rival_microwave_replacement_parts.pdfIn PDF document text
    • http://rowopiva.rf.gd/asus_file_manager_apk_apkpure.pdfIn PDF document text
    • http://kipadixot.rf.gd/vuzov.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/jokekopufawevarumova.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/hornell_evening_tribune_police_report.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/caddo_parish_sheriff_office_accident_reports.pdfIn PDF document text
    • http://zunimesigo.rf.gd/workbook_worksheet_vba.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE768 5456 bytes
SHA-256: 048731dc807de7d291444b0d803efa24fd6fe1d2ce3624bd580c44b8da2247dc
font_01_sfnt_off0000f9ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FF 11624 bytes
SHA-256: b25ba1db7133987e6534011e2cc369b7acde711b3a5b7ae8a4f5d08b28b9560b
font_02_sfnt_off000120bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120BF 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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