Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d5a0969c442e26…

MALICIOUS

PDF

80.2 KB Created: 2021-03-21 00:59:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4ec7383840dd98dcd23425e085f8f38c SHA-1: 295944b067a5a82e03433c971a8ca2275b54eae6 SHA-256: 46d5a0969c442e26747744ed6449390242ef78edc49a1a38a996bcccd324d517
156 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 embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://nipisod.ru/strik?utm_term=bella+12+cup+coffee+maker+14830 PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/nasadoxogonotaru.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/33471070321.pdfIn PDF document text
    • https://dca540c6-954d-4243-9f09-0921753db957.filesusr.com/ugd/974a4e_335a52b49ec8450d86a3f9fd22155fba.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aac482a-27e2-4304-b83a-ba57d0476339/bash_scripting_full_course.pdfIn PDF document text
    • https://2dc0326d-ac60-47d8-bf46-f2dc9d334570.filesusr.com/ugd/21b4a7_9e989fd6882c4838a751074ddd41658d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/biugo_apk_for_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36a75b60-1fe8-4d2b-af3d-5d14e3924c65/all-clad_6.5-quart_electric_ceramic_slow_cooker_99009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2c436a7-b756-48de-a79c-064b0a3cb132/rajarigidi.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/79934618951.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/clases_de_sistemas_operativos_para_moviles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99db4cec-1f49-4ce0-b68d-6dcab4cbe9ea/my_electrolux_fridge_not_making_ice.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/bloons_td_battles_mod_apk_6._5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52ecac3c-d445-4e49-8321-3445ce088aac/39521623536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/480c11fa-c9d4-4894-8bc9-81810045623f/how_to_change_a_filter_on_a_fisher_and_paykel_fridge.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/kemajuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/bbg_free_week_of_workouts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebe3bb7a-31c1-49a2-8da3-b7b2a16e0004/nowevakikeji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30b0d696-d16b-4de0-889b-5434b6b71585/jisatesipawisoviw.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/96540736751.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000faa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA7 5868 bytes
SHA-256: bcbd4dee7fda0eb99ba6106b803db5f0883730cd3100d30166354ce6788f281c
font_01_sfnt_off00010e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9E 10336 bytes
SHA-256: 453a5796e4a8e6d9fe03ed9510250d372c2ac5f222115d0b925e8afcf56851f0

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