PDF malware analysis — malicious · 71e13a7541795b3f

MALICIOUS

PDF

83.0 KB Created: 2020-11-20 16:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 4c738d102f1cdceb0d8ca28d8d2c488a SHA-1: b21b966196f9ca3f006c9bc307b7919a75b40072 SHA-256: 71e13a7541795b3f967a3e9b79d7f0f3f2f1643ce346e73d8e9b4dd84a1b9013

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-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://traffset.ru/aws?utm_term=lightroom+presets+free++for+windows PDF link annotation
- https://duxevuwelinabim.weebly.com/uploads/1/3/4/3/134353564/7f8b2734ebf.pdfIn PDF document text
- https://kukotefuses.weebly.com/uploads/1/3/1/6/131637352/7099535.pdfIn PDF document text
- https://fakanodadix.weebly.com/uploads/1/3/4/3/134371587/7135280.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/mijedusovineti/46432436346.pdfIn PDF document text
- https://s3.amazonaws.com/lupuvogotog/lord_of_blades_symbol.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79f6e171-b14c-4e8f-9c5e-cc079f39d74b/netolaligurotatise.pdfIn PDF document text
- https://s3.amazonaws.com/nagudo/5_point_scale.pdfIn PDF document text
- https://s3.amazonaws.com/divexikav/free_ged_practice_test_2020.pdfIn PDF document text
- https://s3.amazonaws.com/vidadaviwal/84272780971.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/095f0483-8356-4641-85e1-7f9e6181066d/notice_lave_linge_lg_direct_drive_8kg.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a90f88ff-f9c1-4e46-9090-cf13eb1b9c17/skyward_login_harlem_122.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/47391076400.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_off00010969.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10969	5244 bytes
SHA-256: `83471c2b5ef1b9dfb51660b6d985af1541dbb3adf587fe0e4037431573ab5c13`
`font_01_sfnt_off00011b33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11B33	10688 bytes
SHA-256: `429a7e375842f4e604e67d62ff4c39fc32cfedd6eb48c810b510774201f4d9bc`

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