PDF malware analysis — malicious · 91d1d25b409f89ca

MALICIOUS

PDF

60.7 KB Created: 2021-01-06 05:58:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: dcfc48d728a16ff39c5f56927e54d3de SHA-1: dbcdab2224408e4c25c89047ea3640b0617d540a SHA-256: 91d1d25b409f89cadfb155eac13738695435309db25cc551b90051697487d631

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by a ClamAV signature and an ML classifier. It contains an embedded URI pointing to 'https://traffnew.ru/aws?utm_term=arjun+patiala+full+hd+video+songs', which is likely a phishing lure. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. No scripts were extracted, but the presence of an external URI and the malware detection strongly suggest a phishing or redirection attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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
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=arjun+patiala+full+hd+video+songs PDF link annotation
- https://cdn.sqhk.co/xukeposudexo/fhh0STw/86858747246.pdfIn PDF document text
- https://dumisoxi.weebly.com/uploads/1/3/4/6/134625223/poxasowutagovotaj.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393041/normal_5fce8f2012395.pdfIn PDF document text
- https://cdn.sqhk.co/rogumabutur/hefTqVx/puvakiwikib.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412568/normal_5f99620c1182b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4456667/normal_5fdfcdc28044a.pdfIn PDF document text
- https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/8577010.pdfIn PDF document text
- https://vunesexub.weebly.com/uploads/1/3/4/4/134442538/ba63c209c9.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/sakaburepagase/vosumodoxik.pdfIn PDF document text
- https://s3.amazonaws.com/kaxukok/15202699855.pdfIn PDF document text
- https://s3.amazonaws.com/waxapoz/21909079543.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_off0000b456.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB456	5428 bytes
SHA-256: `7f7d44b5f2fc3406f56461f9417ffd00a6f71bf0ca7a78c94d4a288a07efcbf7`
`font_01_sfnt_off0000c6d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC6D3	9300 bytes
SHA-256: `42e88e63ef06c2adf96e6f76606cb2f5c9527c1f83b7fd5bd34284fc42fb1ac6`

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