PDF malware analysis — malicious · 86959d328b3baf0b

MALICIOUS

PDF

65.6 KB Created: 2021-01-03 03:00:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02

MD5: 3d449bca34b8fa20804be28b7f6a1b72 SHA-1: 793be2e8d324402f31360e7766398ed8bda5df34 SHA-256: 86959d328b3baf0bcc959f85268a6ad8a8e5dee98d06dbdb2f0a5d05e6b1c7fc

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'trafftec.ru', which is likely the primary lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://trafftec.ru/aws?utm_term=abhimaan+bengali+full+movie PDF link annotation
- https://cdn-cms.f-static.net/uploads/4459321/normal_5fb291f9ac84e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476590/normal_5fdb0fa2d4492.pdfIn PDF document text
- https://cdn.sqhk.co/vizinifum/hdFhgjb/spend_apple_gift_card.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/numegubowalonan/ibps_crp_rrb_viii_2019_answer_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63afe311-f709-4882-87cf-9bcf2804b3b4/treasure_island_study_guide_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2747dac2-9a25-457f-967d-f30722e2be02/delta_trim_kit_with_diverter.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1eb988d-2ce1-4f0d-9cae-b7a0bb60387c/air_pollution_reading_comprehension_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/nupotukig/bodyguard_video_pagalworld.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/86822c17-ffeb-4ae1-86bf-d882c518349c/66706474093.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/249991c0-29d1-4fa3-a025-95eb9bb8d500/change_eye_color_drops.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_off0000c453.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC453	5096 bytes
SHA-256: `514e4fbf86a694bc028137b40f18f3a151dc91ba4035b2eca444bdd869bce043`
`font_01_sfnt_off0000d597.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD597	10664 bytes
SHA-256: `1bea1cd5468dcc9d56b0364e55c61d7699105c00df7160ced8513b405c63e7b9`

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