PDF malware analysis — malicious · 7da05d4d1e619812

MALICIOUS

PDF

68.2 KB Created: 2020-11-19 18:41:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 884c7d3c4896062f07a2e395f302eaf0 SHA-1: da75a19e584d1b28f697a3fbe553a6352d362265 SHA-256: 7da05d4d1e619812ba0581db49517b638621cbc6f3c3e3d36aba74501772b740

104 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://trafffe.ru/123?utm_term=the+net+delusion+summary PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366311/normal_5f93ad4953771.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411923/normal_5fafd021ee36e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420237/normal_5fb60f617d36a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417312/normal_5f98418eab7e0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383794/normal_5f8f0599bcb7a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446165/normal_5fa54e070636e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463803/normal_5fb5e3b52cb3d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381321/normal_5f9922328b679.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/ninazarila/xejesozejozurat.pdfIn PDF document text
- https://s3.amazonaws.com/mejigavukolu/biosynthesis_of_flavonoids.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/68945660-db60-401c-a713-0e6bfc38de9b/kojes.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_off0000d10d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD10D	5116 bytes
SHA-256: `b6f57ee210e727128f359e03e859691ace1f534ec32b250fedb1c5a2cf17d125`
`font_01_sfnt_off0000e245.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE245	10084 bytes
SHA-256: `fb7c85ba0f8a4f197460f88baa885062e90e2f1e03ce25fc29a91072478f9137`

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