PDF malware analysis — malicious · f9f1392534c8f4ce

MALICIOUS

PDF

69.3 KB Created: 2020-12-19 08:31:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2c6c0479e1d0c771f15dac5313dcdf31 SHA-1: 75e6e2fd776a82f9fa19dc85fa8a262f66c7f988 SHA-256: f9f1392534c8f4ce3b2a5eb0c58e8e063ef275dab4d848b4c0e3b3d1f95b60e5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to 'trafficel.ru', which is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were extracted, the presence of a malicious URL within the document structure suggests an attempt to redirect the user to a harmful site.

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://trafficel.ru/123?utm_term=4th+edition+monster+manual+2+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/5c323e61-1646-498d-b226-c3456096d360/merifudiguvu.pdf
- https://s3.amazonaws.com/fewunadupop/5904552225.pdf
- https://uploads.strikinglycdn.com/files/293b29bc-d741-4ab1-936b-bcef91cf11d8/eccentricity_worksheet_earth_science.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdee079ee0f32b87187269/1606282760084/borulumozagez.pdf
- https://uploads.strikinglycdn.com/files/d3309800-cd2e-4244-8136-e7a829904939/super_smash_bros_meme_template.pdf
- https://static1.squarespace.com/static/5fc0d135bf71053ccb0fc630/t/5fca89a034e0ed4335f7686e/1607109024585/cricket_ball_launcher_machine.pdf
- https://static1.squarespace.com/static/5fc718b7f784ea51367e45c4/t/5fd70a8dacac596b0cd1f5d5/1607928461378/59595455229.pdf
- https://s3.amazonaws.com/rogugagatuf/35642492956.pdf
- https://s3.amazonaws.com/rerinago/58528362761.pdf
- https://s3.amazonaws.com/jolufozo/thing_that_start_with_letter_f_worksheets.pdf
- https://s3.amazonaws.com/mufukep/android_sdk_full_package.pdf
- https://uploads.strikinglycdn.com/files/70be86f7-be64-4866-8a17-094740b9f4cc/49578791037.pdf
- https://uploads.strikinglycdn.com/files/1e79e227-de2b-4e2d-a060-a55482c7b7af/jalikovugazaw.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c3b4.bin` `eb11a2110f761cfcb2d4b8b6635418bb48aa8485545770c78f8e9aca51be4ba5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC3B4	5408 bytes
`font_01_sfnt_off0000d5ea.bin` `758cef7f70463a8e92b4f7ce4a4f6b387dccaa03fa40eefbab7659e04f705e4d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5EA	15440 bytes

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