PDF malware analysis — malicious · 961e0b81e1a1ea36

MALICIOUS

PDF

63.5 KB Created: 2020-11-25 05:01:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 3e58e3e7dffe6fb808f84f30ac1f2a14 SHA-1: b5b8b193c44d5177ec841a3786bba652a3373d1d SHA-256: 961e0b81e1a1ea369d31ecbe9ea20bf6beea1d64b9c862a49df304814b2e0e74

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malicious redirection scheme. The document body, though heavily obfuscated, appears to be a garbled attempt to present content related to a product, likely a lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/strik?utm_term=true+blue+spa+after+sun+lotion PDF link annotation
- https://cdn-cms.f-static.net/uploads/4473023/normal_5fa5c06c27d3c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382614/normal_5fb3279142b71.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387704/normal_5f8df4741da9e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374021/normal_5fa8ee4d30140.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379731/normal_5fbdc608820d9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454421/normal_5fabec40a6cce.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367650/normal_5f8e3212c372d.pdfIn PDF document text
- https://vekaluledezo.weebly.com/uploads/1/3/4/2/134235689/c663b4dfba2.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/xarojapi/gonoodle_i_can_t_stop_the_feeling.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files/annual_report_of_tcs_2017-_18.pdfIn PDF document text
- https://s3.amazonaws.com/leributafa/marie_chatham_nj.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_off0000bc31.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBC31	4984 bytes
SHA-256: `816f2589e1723a29f3bdad44554e1af4114cf4e38487971a71a6a3840856a766`
`font_01_sfnt_off0000cd29.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD29	10660 bytes
SHA-256: `c95cb630c50d2503902ed6559c1129bfdca1af0a59c55a8a770d90f14af910d3`

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