Malicious PDF — malware analysis report

Static analysis result for SHA-256 b470163cd2e501d4…

MALICIOUS

PDF

88.9 KB Created: 2021-01-25 20:40:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a547696c7a70a68af4bc5e4bd922ab36 SHA-1: 9c50752c59a1016fc882963da9ca038eb6dce33f SHA-256: b470163cd2e501d4fc76f953c7eeb9737ab5f660f777036c0a621436eb5ca903
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'traffking.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'editable cv templates'. No scripts were extracted, but the presence of external URIs and the malware classification strongly indicate a malicious intent to redirect the user to a harmful 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://traffking.ru/aws?utm_term=editable+cv+templates+free++psd PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4472213/normal_5fdc1fdb229d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462066/normal_5fdcc2639da35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459028/normal_600dc4fde43ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392660/normal_5fd9d16f29438.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365624/normal_5fcae59e68de0.pdfIn PDF document text
    • http://clobuss.ru/sago_mini_pet_cafe_free_downloada2yg4.pdfIn PDF document text
    • http://awpmode.com/88982595110sxqga.pdfIn PDF document text
    • http://triple-doska4.club/winking_lizard_locationswwqqg.pdfIn PDF document text
    • http://policyhelpcenter.com/solenururimumvqwu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528260/normal_5ff37f2a906cb.pdfIn PDF document text
    • http://jiludedo.iblogger.org/netflix_movies_windows_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490252/normal_600260ae1908f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472488/normal_5fce79eaaa88b.pdfIn PDF document text
    • http://nicepics.xyz/fidatapuboselepau2ryy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bomajada.epizy.com/benyamin_ratu_amplop.pdfIn PDF document text
    • http://meluromotav.rf.gd/reduce_size_macbook_air.pdfIn PDF document text
    • http://xubudexev.epizy.com/fejirezubijoriw.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_off00011f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F4A 5456 bytes
SHA-256: efcc859151a6d01d5de7d3840808e9a84e19e9f2a38f5e0ee2c115d2aae59691
font_01_sfnt_off000131cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131CF 10688 bytes
SHA-256: b9e5d14667bf3c40d0b89e3d778213df097f4fdb42dc85da0198131ee5652a90

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