PDF malware analysis — malicious · 12c205ba887dbf6f

MALICIOUS

PDF

70.5 KB Created: 2020-11-19 17:59:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 80e9470fc949fdf2762396ae200e4a0f SHA-1: d0aef2db7eda949968936b834ac99d63bbe18c92 SHA-256: 12c205ba887dbf6f7303be145d0daefca09a63d0b0e8f21601588f20cd9e2f57

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 0.9995

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=how+to+pronounce+yuan+in+chinese PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369665/normal_5f9db1538ff2a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389805/normal_5f9108318cdd3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366364/normal_5f87381e501b9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/d468b405-44f8-4570-8917-820eda45da34/zekonejole.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89756393-32af-4dea-be55-a2f90d65d831/fnaf_1_download_pc_free_full_version.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16ab7dec-2c33-49db-aff6-11a75f572244/36447670592.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1fcfe15-52a7-47fb-a8a7-b6511f6f751c/uzi_armorers_manual.pdfIn PDF document text
- https://s3.amazonaws.com/gafedupeba/english_composition_clep_study_guide.pdfIn PDF document text
- https://s3.amazonaws.com/kiwopusafize/89316227125.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/208e32ff-524d-44c2-927d-54656ceae961/10508806712.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000bbd7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBBD7	6020 bytes
SHA-256: `1096faa92fc9ec2008526ae6ec810a0d2f1c945e85c54cbe924baff0a316b311`
`font_01_sfnt_off0000d07e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD07E	5144 bytes
SHA-256: `2582bcc0b18a97a607ffd1c2c87ca138eb5cfd253d0ec0838adb9a68be073e2a`
`font_02_sfnt_off0000e212.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE212	13480 bytes
SHA-256: `85bee8e8da9f64991cc4a63a06943da5bb3aca592f525027a5b863dd43398838`

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