PDF malware analysis — malicious · d51b195fa0864e51

MALICIOUS

PDF

66.5 KB Created: 2020-12-22 07:31:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 83774096e31a0c389b66a87bbb2580f9 SHA-1: 80de25255a2bc1606b931251abe17233a0b8dc1a SHA-256: d51b195fa0864e518689d47d6df47b6df557fd7b7386c23e1732a2d5aff9e372

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Balenciaga shoes track black'. The presence of embedded URLs and the overall detection suggest this file is part of a phishing campaign, likely delivered as a spearphishing attachment.

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
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://traffset.ru/strik?utm_term=balenciaga+shoes+track+black PDF link annotation
- https://kexeluki.weebly.com/uploads/1/3/4/6/134627649/fcd38e85bd60.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417046/normal_5f9b17e2dc422.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456728/normal_5fba06808bcbd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fdfda84ff074777c9861e4e/t/5fdfe06df5f64226566acd65/1608507504658/kiderafafupagude.pdfIn PDF document text
- https://s3.amazonaws.com/bulikowexunepov/11280282835.pdfIn PDF document text
- https://s3.amazonaws.com/mejobu/verbe_etre_et_avoir_conjugaison.pdfIn PDF document text
- https://s3.amazonaws.com/sojuravewi/11968089420.pdfIn PDF document text
- https://s3.amazonaws.com/sabegokek/49335182309.pdfIn PDF document text
- https://s3.amazonaws.com/subud/biometrics_and_fingerprint_payment_technology.pdfIn PDF document text
- https://s3.amazonaws.com/jivala/video_song_banjo_by_chester.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc4fe50c30a162e0c6cbe8c/t/5fc5202518e72e5fdb7b941c/1606754342053/61201874152.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_off0000c859.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC859	5312 bytes
SHA-256: `f1742a6333a7e4a69dd17eadc8046523e7b2800075d618caf25835d222433f73`
`font_01_sfnt_off0000da62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA62	10172 bytes
SHA-256: `a88b2c1624eb9cd4ac52bb501711087430065d4e3de8fcd9bced4c57d4af24e1`

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