PDF malware analysis — malicious · 3af0ad21c042e4bb

MALICIOUS

PDF

68.5 KB Created: 2020-11-22 06:03:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 399505ff74c9654b349bf7cf7cd4913a SHA-1: 2412a2cf4188f34c836f253e86cd8fd2e26fb8ec SHA-256: 3af0ad21c042e4bb9105f727a21570f41d0e0bea5ac63a3d6dea69cff9da4c01

96 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. 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 0.9998

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://traffnew.ru/123?utm_term=guide+to+rocks+and+minerals+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4370541/normal_5fa47f655a8c1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403534/normal_5fb37f528521c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365635/normal_5f87433f06e4c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376629/normal_5fad9b4976ac4.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/zidenigad/97017713064.pdfIn PDF document text
- https://s3.amazonaws.com/peveziwoguxuzam/jessica_mcclintock_wedding_dresses_1988.pdfIn PDF document text
- https://s3.amazonaws.com/mawesenasijoser/christian_quotes_images.pdfIn PDF document text
- https://s3.amazonaws.com/fotepopunaj/puffs_commercial_2020.pdfIn PDF document text
- https://s3.amazonaws.com/jukoxisojow/teresofubig.pdfIn PDF document text
- https://s3.amazonaws.com/nazekisigiduz/singer_futura_ce_250_embroidery_software.pdfIn PDF document text
- https://s3.amazonaws.com/warapagefasovi/77157765901.pdfIn PDF document text
- https://s3.amazonaws.com/magapeguwabe/nipadisiwada.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e188ce37-cde5-434b-b80d-163591f86882/kuvogowofekun.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_off0000cf13.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCF13	5396 bytes
SHA-256: `667817760f9f37c1a039577cc62d82b2da340b3717eda283cff1b6d7a52d9c43`
`font_01_sfnt_off0000e15e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE15E	10456 bytes
SHA-256: `53ac302051180c2a2640181603b9f2523918d471a479d8761dc937c0ab96f64e`

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