PDF malware analysis — malicious · 16e156ed765cb4a3

MALICIOUS

PDF

71.3 KB Created: 2020-12-16 14:22:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02

MD5: 1dd678de6ef1e0eaf5943354c03c2f29 SHA-1: eae89042d653869640aa6401209a1f1608eb7dea SHA-256: 16e156ed765cb4a36fc18d65177c5c194130fae411272719d150ff98c726df1a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://traffnew.ru/aws?utm_term=whatsapp+video++love+telugu` is a primary indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://traffnew.ru/aws?utm_term=whatsapp+video++love+telugu PDF link annotation
- https://cdn-cms.f-static.net/uploads/4392854/normal_5fd910ee49606.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483587/normal_5fb34ca05914c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375889/normal_5f9b201ce20a6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4492536/normal_5fcf2fc0e1c2e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474465/normal_5fbec5b4107e5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370317/normal_5f951e380003c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/xozeb/tomubi.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6714a97599144eef9075/1606379285310/41357055237.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/080427e0-3c03-42f6-ad28-fbc76bd4949b/precalculus_vectors_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/mizeteb/kotor_2_test_answers.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dd0e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD0E	5200 bytes
SHA-256: `fe46f788b9d515bbdd187cbd882d1db9fb7e9acfafb4091e5efde5071f359587`
`font_01_sfnt_off0000eed5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEED5	10088 bytes
SHA-256: `d12a76fc4582907929075234996a4ce59f7647557141458feb8a1ca6c0cff821`

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