PDF malware analysis — malicious · ba31ee42874c040f

MALICIOUS

PDF

65.7 KB Created: 2021-01-04 06:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 264cf32af838df3fac77cd62d5b025fe SHA-1: 930919cb6c821c9d680893b946c9d7df14e8a906 SHA-256: ba31ee42874c040fd12b1568d62eca3d2e37af6a55d5afef87a4fc7845cf707e

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. It contains an embedded URI pointing to 'traffking.ru', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text that appears to be a lure, further supporting the phishing attack pattern.

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://traffking.ru/123?utm_term=shake+your+sillies+out+wiggles PDF link annotation
- https://cdn-cms.f-static.net/uploads/4372963/normal_5f8a985c0a1ba.pdfIn PDF document text
- https://cdn.sqhk.co/vakanaju/aQ9giji/lolewiviraximuginamojuku.pdfIn PDF document text
- https://cdn.sqhk.co/poladejug/jaghojj/8918358398.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418367/normal_5fe191ec4068d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369152/normal_5f8954f1831ec.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403407/normal_5f9f9f5e56a4d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402938/normal_5fb594884d7c9.pdfIn PDF document text
- https://cdn.sqhk.co/nigulavax/dheGjc5/urban_hop_hip-_hop_kpop_infinity_bouncing_balls.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/jafujasiwetid/sisasukomabibuperixuja.pdfIn PDF document text
- https://s3.amazonaws.com/sugosubexez/la_historia_de_moises_en_la_biblia.pdfIn PDF document text
- https://s3.amazonaws.com/pewebopufupe/abdomen_anatomy_mcqs_with_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_off0000c352.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC352	5308 bytes
SHA-256: `e0260518f7f025a47a2342965fd72eded5268f04611faf3985e85bdd21a468a7`
`font_01_sfnt_off0000d573.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD573	10960 bytes
SHA-256: `b17111058f9ff29bf49157171c30957dc9afedad43679cb81f5bf32270eec27c`

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