PDF malware analysis — malicious · 5972e840114d3ebd

MALICIOUS

PDF

70.5 KB Created: 2021-01-06 01:52:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: bfa4fb20d8ab8965a4fc21dce9fceee6 SHA-1: 988200754c16aaacd9f60cf7ea354ff3d9f3f104 SHA-256: 5972e840114d3ebdec517229ce05b7c8df5959ce7ad3335d92eb4d5d8c7e54b2

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafffi.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to a product search, suggesting a lure to trick users into clicking the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/aws?utm_term=sheridan+1000tc+sheet+set PDF link annotation
- https://static.s123-cdn-static.com/uploads/4499629/normal_5fc72a4001d22.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484097/normal_5fb76849e5050.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421049/normal_5fbb7b8b63e79.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370541/normal_5fa4800bc2f38.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413362/normal_5fbeba9082f87.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502870/normal_5fdc18cc0d9b3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/50db36a5-b153-49f7-847d-edc818f0a96a/siwupefavunokife.pdfIn PDF document text
- https://s3.amazonaws.com/xidulumexi/lobopabavukujekobawexuval.pdfIn PDF document text
- https://s3.amazonaws.com/retobifulipo/spring_boot_interview_questions_and_answers_javatpoint.pdfIn PDF document text
- https://s3.amazonaws.com/nuruvapozixix/litivugebox.pdfIn PDF document text
- https://s3.amazonaws.com/susonanezaj/simple_meeting_agenda.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_off0000d59b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD59B	5292 bytes
SHA-256: `dc119d62944a060bdc4d64a6a916032926a4629276e7ab7496602bd5ccb50dc6`
`font_01_sfnt_off0000e78e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE78E	11240 bytes
SHA-256: `bcf4bd794073a83258d53b69c0816575ecd6b8c467d3671d9a705c933a594b75`

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