Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14267a947628004…

MALICIOUS

PDF

77.3 KB Created: 2021-03-24 13:16:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 133288a339003dfc30e52604d940e45b SHA-1: 417af3d36f170b2a3e0aa9b37456bd5fa584f299 SHA-256: b14267a947628004c7dab940daaee72920b737d3abfd2659b6173aa2d1d0dacc
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of external links, many of which are SEO-themed, suggesting a link farm or phishing attempt. The document body, though heavily obfuscated, appears to reference search terms related to car seats, indicating a lure to potentially malicious external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://dafemum.ru/strik?utm_term=evenflo+car+seat+newborn+insert+weight+limit
    • https://xilasofuvi.weebly.com/uploads/1/3/4/6/134651230/beriridamuv.pdf
    • http://ayazshabutdinov.club/95021195416f5cgk.pdf
    • https://cdn.sqhk.co/dugixikisim/jjggIif/shark_evolution_roblox_glitch.pdf
    • https://cdn.sqhk.co/tetolonul/hfIjfhe/debenture_agreement_template_uk.pdf
    • http://normaa-id.com/interesting_facts_about_world_war_2_memorial7o0z1.pdf
    • https://nakigere.weebly.com/uploads/1/3/4/6/134608851/822f624d5f26176.pdf
    • http://stalekost.site/tobipijunaxodfz2p.pdf
    • https://cdn.sqhk.co/ragejeli/iiWRJZL/47104170023.pdf
    • http://palitra-cveta.ru/super_99_discount_centre_vancouver_bch77c3.pdf
    • https://buginibonimej.weebly.com/uploads/1/3/2/7/132711973/aaf35f698836700.pdf
    • http://datingsexchat.site/kefewugovozaxupefibidigelwg5s1.pdf
    • http://item-get.top/gegelekudq6eg.pdf
    • https://cdn.sqhk.co/lodabazul/hdGhhDw/mirazomigomizunijewibesa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://393102e6-89af-4738-8cad-89662dba8dc5.filesusr.com/ugd/33a16d_fe2f22a080ec470a938feb28c8532188.pdf?index=true
    • https://s3.amazonaws.com/vinejivunitego/scientific_notation_problems_worksheet_with_answers.pdf
    • https://3dcfbd4a-ef33-49dc-a04a-0aaf5307c30d.filesusr.com/ugd/b47706_315917212bab4476bf753fcb5d36f83f.pdf?index=true
    • https://0ed7c29b-d5f2-4290-8b47-add6aa38300d.filesusr.com/ugd/32a223_5009b92ba2d34893b1545c8a04ddef2e.pdf?index=true
    • https://s3.amazonaws.com/lorifumofelu/16254001694.pdf
    • https://b913155d-2712-4fd4-bcc6-651970a8c456.filesusr.com/ugd/e39924_e4b2c9307e2b479f97b408f95e251c37.pdf?index=true
    • https://s3.amazonaws.com/muvarelo/understanding_business_11th_edition_ebook.pdf
    • https://c84d532c-3b33-47d6-96aa-4134a1164eb1.filesusr.com/ugd/6d45f6_fde32ac1efc9428285fce6ea21b78e9a.pdf?index=true
    • https://s3.amazonaws.com/widofafane/aspergillus_guidelines_2016.pdf
    • https://s3.amazonaws.com/xilasisefi/best_caller_info_app_for_android.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.

FilenameKindSourceSize
font_00_sfnt_off0000ee96.bin
58f4bdd9fffcae886840de0ac972323e01c41cbd62b1a6a0f147517d4d4eda93		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE96 5544 bytes
font_01_sfnt_off0001016f.bin
23eb43d1370e8a66c08dbad9f81fc36cbf1e46a8601be4ab2322b6b39003eece		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1016F 11128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.