Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0adf0d9fbd4687a…

MALICIOUS

PDF

74.2 KB Created: 2021-02-21 14:09:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fe8f0ad2d302d9675b99ec82523c8d2 SHA-1: 9cd83bdcd3e6fa876fc49f5ffd297d4ebdd598cf SHA-256: d0adf0d9fbd4687a19dda07b709261307f9e407ea6a73665e03e3717e57c10b1
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a context of information retrieval or a fake search result, aiming to trick the user into clicking the malicious link.

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://leonvi.ru/wix?keyword=who+carries+out+the+laws
    • http://widalatipuna.22web.org/90550963365.pdf
    • https://static.s123-cdn-static.com/uploads/4457590/normal_60040ee0e62fb.pdf
    • http://shtancircul.site/lanenotugaramow5aocv.pdf
    • https://static.s123-cdn-static.com/uploads/4449009/normal_5fcb2f250990b.pdf
    • https://cdn-cms.f-static.net/uploads/4451561/normal_602a0429beda0.pdf
    • https://cdn.sqhk.co/kixagixupo/ij2KBhg/bujozamurixum.pdf
    • http://folutelegaraz.iblogger.org/42036550336.pdf
    • http://helpverifedbadges.com/reading_comprehension_pre_intermediate_worksheets6vnid.pdf
    • http://podcard2020.site/vimuxizavofapitinibejedi7gqdg.pdf
    • http://gazopulodagifus.iblogger.org/action_photoshop_watercolor.pdf
    • https://static.s123-cdn-static.com/uploads/4366633/normal_600471572dac2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/babetafaperaxov/89275340129.pdf
    • https://s3.amazonaws.com/padosumifubobo/genome_canada_funding_guidelines.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5f8.bin
6cac56e1186e80e1a542542220c0df7f191f02ad4cefd15b56916042ea91f84a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F8 4992 bytes
font_01_sfnt_off0000f704.bin
2046273fa37a73ad937ba6f886b63d6eff1e3bf857eb206f6ab73f56ab63fce7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF704 10936 bytes

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