PDF malware analysis — malicious · e6b6bbdae2a280a3

MALICIOUS

PDF

70.5 KB Created: 2021-01-14 09:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 679fb13d0c4cfd6a5dbe898c22e1e017 SHA-1: 7ac32e7e27bca12fe5a79bcc940301deeb37605f SHA-256: e6b6bbdae2a280a388ea88ddaf6f9aa4541fd0c39e97f127ff0000bbebf41a5b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. An external URI, 'https://trafficel.ru/123?utm_term=oval+crock+pot+rack', was extracted, suggesting a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs are indicative of a phishing lure, likely delivered as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/123?utm_term=oval+crock+pot+rack PDF link annotation
- https://cdn-cms.f-static.net/uploads/4411479/normal_5fb61d31bb05f.pdfIn PDF document text
- https://wofenexezut.weebly.com/uploads/1/3/4/3/134310974/91c1a0393f1f1.pdfIn PDF document text
- https://site-1177968.mozfiles.com/files/1177968/zuxuk.pdfIn PDF document text
- https://site-1174847.mozfiles.com/files/1174847/sikuxipopunakenex.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368977/normal_5fb36aea0b058.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386363/normal_5fdb82e022718.pdfIn PDF document text
- https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/5ec3d.pdfIn PDF document text
- https://site-1178921.mozfiles.com/files/1178921/nefarupo.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/viromibukoleliw/vekonamod.pdfIn PDF document text
- https://s3.amazonaws.com/xonaxevetaf/40645129633.pdfIn PDF document text
- https://s3.amazonaws.com/pukasojalu/10012576252.pdfIn PDF document text
- https://s3.amazonaws.com/pezofut/oregon_historic_newspapers_online.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_off0000d653.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD653	4900 bytes
SHA-256: `d5da3b7b8f81fc6dba837f5214cd57c72edabfa819c81964997b5a1972d97a54`
`font_01_sfnt_off0000e715.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE715	10988 bytes
SHA-256: `43fc23751be6efe080b180eec5b1a86d7cc029b06f4bc6e4cc2abe55157311e4`

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