Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eafcb2ab1116355…

MALICIOUS

PDF

71.7 KB Created: 2020-12-20 19:03:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f93a98fb98d0f8dd1beae291bb6162d6 SHA-1: d4c250890ae697a790f902732b7d2ecddfa8317d SHA-256: 7eafcb2ab111635584f680ad39b4e99ee17e627b3e62d680d0c1047329d3522b
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/strik?utm_term=topcon+tesla+owners+manual In PDF document text
    • https://static.s123-cdn-static.com/uploads/4392873/normal_5fccf5c2ad01c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468828/normal_5fbdcfa39ce22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416928/normal_5fc5e5ac98c94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367920/normal_5f935734c5082.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_5f8c479d3d528.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/ea4384e7-a3e5-4bf8-a574-d0aef8f60a7a/rokabojonuwumi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc16b4168612547ed61cedd/t/5fcc36acfe657040d583dd08/1607218863248/triominos_junior_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/memorisiroramemetut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd0797e2-00a9-449c-b614-53fe99217b61/20691505700.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/apple_tv_screensavers.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/cracked_software_virus.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/93855480972.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/lanolivibulewi.pdfIn PDF document text
    • https://s3.amazonaws.com/juxatop/xopefelejupatevipawegimej.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37f170b6b03258f45d436/t/5fcd5c09fe657040d5a342ca/1607293962417/extra_vegas_casino_no_deposit_bonus_codes_2020.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBC4 5120 bytes
SHA-256: 8c164d458b654b57f59ffd27636b26d910d206a0a750c221b99dce81e92be3d1
font_01_sfnt_off0000cd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD28 2092 bytes
SHA-256: 6e5de5c6bcb7fdd8c5ca0d25823a8f80e6c764803c1b732dbc9c425a5c0f8ea5
font_02_sfnt_off0000d6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CE 11112 bytes
SHA-256: 76bab5b6b74b8cc4fd8a2a528f8cd9e0cb4ea9cd4ff5b9f530b761a8b652f893
font_03_sfnt_off0000fbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE8 16172 bytes
SHA-256: d8069a7dd42c7e20774f35156d036dc78f83fdbb533723286f1a657125f6d6ba

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