Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d2b473b295df7e1…

MALICIOUS

PDF

67.4 KB Created: 2021-03-09 11:17:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ccda2c8032a5967b2f963bc372491ca9 SHA-1: bc72a15046351b94ad2ce4c98eb37134646e0aaf SHA-256: 0d2b473b295df7e133eb3ced9afed08d3defec25258b4a5a04df6747589a3156
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 machine learning classifier and ClamAV, indicating malicious content. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to environmental topics, possibly to disguise the malicious intent.

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://jumiwimov.ru/wix?keyword=all+non+living+things+in+an+environment PDF link annotation
    • https://cdn.sqhk.co/vadetegubufo/Ijdihii/amazon_flex_driver_app_download_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/busosuwik/Klhjie3/tuvojusimujuresisuzosag.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/jKjgldi/tirek.pdfIn PDF document text
    • https://cdn.sqhk.co/fapetemiji/icjfYhb/kibetekekelusixewamufukub.pdfIn PDF document text
    • https://cdn.sqhk.co/movumatoz/ggNgjFZ/51982892719.pdfIn PDF document text
    • https://cdn.sqhk.co/kinanekoxo/WgdifVy/85012267472.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415519/normal_6040e308583dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382793/normal_5fdef2b4ecd1b.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/gcYifie/41966427849.pdfIn PDF document text
    • https://cdn.sqhk.co/vuritukupus/thbjh1m/26291247040.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/KoWuihb/41823186156.pdfIn PDF document text
    • https://cdn.sqhk.co/puvelumilum/MgyjbgR/97119304954.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/jamuluvuvava/46145086600.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/baltimore_county_police_report_request_unit.pdfIn PDF document text
    • http://dozewejesan.epizy.com/44844476122.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/guidelines_on_paediatric_parenteral_nutrition_espghan.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/gupaxivosebizos.pdfIn PDF document text
    • http://vefonosurugozus.epizy.com/93466744761.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_off0000bfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFE6 4936 bytes
SHA-256: cbe77246f399bbac7b0032e41c1869bddbcd6330cafec7a8205c1e03851db057
font_01_sfnt_off0000d07e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07E 9868 bytes
SHA-256: 6fdeb6fbb34c86e2fbd7d32a6dea720344f454c288484bc64d2e7463ae0ee926
font_02_sfnt_off0000f23d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23D 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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