Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d36733d32dfdb9…

MALICIOUS

PDF

75.3 KB Created: 2021-02-27 01:04:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: ece8154407cc9919ee1fa29130eddd7f SHA-1: af1711be8be08efb4d283c62ab1779d8d757ca08 SHA-256: 76d36733d32dfdb9d8b54884fe5a4273510f397c6a51f9787a39cff697800abd
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified as malicious by ClamAV and ML classifiers. The document body, though heavily obfuscated, appears to reference a pressure washer, suggesting a lure for a phishing or scam campaign. The presence of PDF_URI and EMBEDDED_URL heuristics further supports the malicious intent of directing users to external, potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/123?utm_term=greenworks+2000+psi+pressure+washer+price PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453553/normal_6007e0be161ea.pdfIn PDF document text
    • https://baputopozim.weebly.com/uploads/1/3/5/3/135336161/xutixi_febenelurofunu.pdfIn PDF document text
    • https://puriruwuz.weebly.com/uploads/1/3/5/3/135395363/7670626.pdfIn PDF document text
    • http://pasetbs.xyz/mar_negro_bernardo_esquincahipat.pdfIn PDF document text
    • http://damvglaz0.xyz/sedupukopewatuxfrbnl.pdfIn PDF document text
    • http://freehookup.xyz/frasi_inglese_utili_per_viaggiaretwexf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384046/normal_5ff65e6b9b495.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420434/normal_5fe5d06f35c56.pdfIn PDF document text
    • http://eferevole.com/911063867288cvhn.pdfIn PDF document text
    • https://nokajavu.weebly.com/uploads/1/3/0/9/130969653/3343042.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461761/normal_602fd50eb38f6.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/genuvarojqhv8.pdfIn PDF document text
    • http://visiblawty.com/buramamixonanxqjw2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407070/normal_5fd3b4bc01f79.pdfIn PDF document text
    • http://shopyou.online/34831241510mxpw3.pdfIn PDF document text
    • http://sunshop.pro/93870912430rin45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393759/normal_5fdc3b5c3d629.pdfIn PDF document text
    • http://max-lifting.store/how_to_become_a_reliability_engineeru4qf3.pdfIn PDF document text
    • http://idealica-official.website/zimetega1f32c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369653/normal_5ff9b67195e35.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fawituwiluke.epizy.com/vimitarifemasuf.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_off0000e6df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6DF 5452 bytes
SHA-256: 911a4c558a9cc718ce44baf5364ce92a9be23272e65fb8c78747566967bbd2df
font_01_sfnt_off0000f97b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97B 11280 bytes
SHA-256: adb5a3c96d24ac3ae6878c1ba436721d53eeaba4e4c6c65e58f089f1bbe27c29

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