Malicious PDF — malware analysis report

Static analysis result for SHA-256 70d87d01cf311bef…

MALICIOUS

PDF

75.0 KB Created: 2021-02-21 08:34:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 16a0125db6d97bf5d6f10d7d0cbec477 SHA-1: c172c868f915a9966b3637aad6180b6853f4d3ba SHA-256: 70d87d01cf311befc0916ee7c3e9d56cc731ba94e01e75f1eb207759feecb1ad
96 Risk Score

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 as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body mentions '2018 tesla model 3 standard price', suggesting a lure to entice users to click 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://jottigo.ru/strik?utm_term=2018+tesla+model+3+standard+price PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4466657/normal_5fde65e820f4c.pdfIn PDF document text
    • http://bewagubidebesun.iblogger.org/11282405293.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366055/normal_5fc829f8b6805.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366034/normal_5fd2586f841d5.pdfIn PDF document text
    • https://cdn.sqhk.co/sejarepezibo/h56igig/7199538020.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/nidiXih/legend_of_blades_facebook.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366961/normal_5fcbff96d5e54.pdfIn PDF document text
    • http://bifarigudok.22web.org/8821911108.pdfIn PDF document text
    • https://cdn.sqhk.co/natokaze/fIhbgjy/23084775880.pdfIn PDF document text
    • https://cdn.sqhk.co/baruduwege/jOfGyjd/ralidododoguvu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378383/normal_5fed233101b33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495838/normal_5fe9dd03d847c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367951/normal_600dc1c8cf3bf.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/senodiw/jajegupusujomisad.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/zozevojosuweso.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/xuserezax.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/98641990510.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_off0000da5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5A 5596 bytes
SHA-256: 929661470d54733b1d34b3a32c7e0c99e99f7b13b29934bb3c84817a9dd29695
font_01_sfnt_off0000ed32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED32 10412 bytes
SHA-256: 8bdd49b95ceea44148d2cd3de32b1ed7308f5286f1c5a0caf7c69c4042351b42
font_02_sfnt_off000110dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110DD 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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