Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6c01c445a64d08…

MALICIOUS

PDF

77.4 KB Created: 2020-12-01 17:59:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: bd71ef016687c725ae2ae2d4a9afee93 SHA-1: 2d38a038f3eb5f5d1c15bd671949f70a1e7d4746 SHA-256: ed6c01c445a64d08ae9eb8a69b463200602235743aa99fb641bcf20b13f4af46
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffine.ru/123?utm_term=secluded+grimoire+pathfinder'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL within the document body suggests an attempt to lure the user to a compromised site, consistent with phishing or malware delivery.

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
  • 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://traffine.ru/123?utm_term=secluded+grimoire+pathfinder In PDF document text
    • https://cdn-cms.f-static.net/uploads/4480393/normal_5fb2d426a75d8.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/pubufibezunekita.pdfIn PDF document text
    • https://selamosufuk.weebly.com/uploads/1/3/4/4/134463567/2930110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380073/normal_5f9e5b80241ae.pdfIn PDF document text
    • https://rogidalot.weebly.com/uploads/1/3/1/6/131636841/63a71.pdfIn PDF document text
    • https://kasasifu.weebly.com/uploads/1/3/4/6/134697732/0d3ade8f5d47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388158/normal_5f9564f0086f7.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://uploads.strikinglycdn.com/files/4ccc6f94-4335-41f5-821f-6bb9ee08a97e/45728733359.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61d1512c-5b02-4d1e-9db8-a3bc95ad6f4f/82774737062.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/bricksmith_badge_roblox_imagenes.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/28482381085.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_off0000e360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE360 5376 bytes
SHA-256: 8bbb558a45efff5412b5dfeeecc61aac6d2dcb9dc1815862ba218593fecf9ed0
font_01_sfnt_off0000f572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF572 11028 bytes
SHA-256: bccd26f8cf6d083e0f7907bda9b2e993880678799f2194611e92ec2d82c709db
font_02_sfnt_off00011b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B06 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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