Malicious PDF — malware analysis report

Static analysis result for SHA-256 079658fa67a52327…

MALICIOUS

PDF

69.3 KB Created: 2020-12-17 15:54:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: ef1db5910a09e08941e5d82319903097 SHA-1: f884bfea187301537f868d34e3f2d438f5b83c1c SHA-256: 079658fa67a52327082a66161a35bea15e1d4b5eede2f644f3963b065b1ba67c
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/aws?utm_term=free+ppt+templates+for+online+shopping In PDF document text
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/ac1e7b346f228.pdfIn PDF document text
    • https://jixevimevulu.weebly.com/uploads/1/3/4/6/134659689/palib.pdfIn PDF document text
    • https://jajaleregonu.weebly.com/uploads/1/3/4/2/134235513/balifovamo.pdfIn PDF document text
    • https://jilukixewe.weebly.com/uploads/1/3/4/0/134042659/kojubejokezekozobo.pdfIn PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/defewal-gakivifi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc173ecdf132613bbc1a931/t/5fc776f5bfb90028be52e928/1606907638615/jaguvopufafimilufoburaw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54070c14dfd36fe0e2b11/t/5fd6fbf2481cfa31addd9f2e/1607924726047/buxavavoxatinerixoji.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc364f7104edf1d7790e178/t/5fc8d3c0b74dd54858e249fd/1606996928933/troostwijk_auctions_europe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf9cb3fdc31513a0f6fdf/1606220236738/rurivevitiwufumomirix.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7a46f2da0933358956f6f/t/5fc8731a4b97230d050dc2fb/1606972188337/32485196296.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/ventajas_y_desventajas_de_5g.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/zodemipawekofonetadoxuf.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/fepire.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc58fccbf71053ccb2f4d5f/t/5fc7a10f8f07963615806409/1606918418319/nerarajesanowevenodafol.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_off0000d1cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CB 5268 bytes
SHA-256: 5644439591a61a3763884ecc80e56f1ddbe09c8a0c8cc89e5beadda175d45576
font_01_sfnt_off0000e390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE390 10664 bytes
SHA-256: 79a17bad1e8b0d8098fbe9202f504b2347b5d7e4bd84425cca962e6aab94a648

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