Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d714215da02fea…

MALICIOUS

PDF

171.0 KB Created: 2020-11-27 10:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 73ada2ae73c8a5523ad3be47747a0f36 SHA-1: cefa5d54dfacec8cfbc777de593b64c9900b595b SHA-256: 22d714215da02fea3e40dc5fe12308fd449895bad8f65aef0abe67fbbf8b44d7
104 Risk Score

Malware Insights

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

The file is identified as malicious by a ClamAV signature and an ML classifier. It contains an embedded URI pointing to 'https://trafficel.ru/aws?utm_term=aids+ki+full+form', which is likely a phishing or malware distribution URL. The heuristic 'SE_URGENCY_LURE' suggests the document's content attempts to create a false sense of urgency to prompt user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://trafficel.ru/aws?utm_term=aids+ki+full+form PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393369/normal_5f922fd423d73.pdfIn PDF document text
    • https://mogidudurunupiz.weebly.com/uploads/1/3/2/6/132695636/6018636.pdfIn PDF document text
    • https://pelixenebedevo.weebly.com/uploads/1/3/4/3/134338689/rizuzexusoduporej.pdfIn PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/8901043.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426812/normal_5f9a1b7fac0e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421210/normal_5fbbb13292bf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389104/normal_5fab54633cce6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379029/normal_5f9845e41dbd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387419/normal_5f947894a31f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381291/normal_5f90f0f9db5d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383334/normal_5f9065b26e636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369802/normal_5f91cce77b54c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8c00e9c-d686-4773-83c7-605fad874675/nizaxamonidoxukut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eae7752f-724a-469a-8efb-f290c9572011/perafamesekawet.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_off00026211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26211 4896 bytes
SHA-256: 588bb14806b9b790f8fb7765a3ace828817fb5188547cf17f4429e1903580b82
font_01_sfnt_off000272a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x272A6 13140 bytes
SHA-256: ac2cc64ff092fe2364266af5950da9da57206b76ce5043c56573a9055435dfe7

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