Malicious PDF — malware analysis report

Static analysis result for SHA-256 a710dc4c5c362b21…

MALICIOUS

PDF

72.6 KB Created: 2021-02-13 00:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4edfa2db92229587d5f201e3a173e003 SHA-1: 232517d7ab901e607f6383d7a82f5000c750a453 SHA-256: a710dc4c5c362b21e63568d2f7d8d8cbf792c571f0ef26ed93b50c21477e85f3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=hink+pinks+easy PDF link annotation
    • https://cdn.sqhk.co/melalisopapu/dagcMbB/my_planet_earth_my_responsibility.pdfIn PDF document text
    • https://cdn.sqhk.co/latosagax/jiRIYhc/pokeball_go_plus_instructions.pdfIn PDF document text
    • https://jopokoguse.weebly.com/uploads/1/3/0/8/130874396/dugigelefefo.pdfIn PDF document text
    • https://cdn.sqhk.co/gisusisabez/ahi1hbr/gebarepogeboxodofofug.pdfIn PDF document text
    • https://menuzuxa.weebly.com/uploads/1/3/1/0/131070619/wokibiwu.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/gagegiF/rome_total_war_2_legion_units_mod.pdfIn PDF document text
    • https://fefajuvojamunuj.weebly.com/uploads/1/3/4/7/134750085/7752639.pdfIn PDF document text
    • https://cdn.sqhk.co/webepinovet/jjbOijP/5348898275.pdfIn PDF document text
    • http://esparks.ru/achyutam_keshavam_song_bestwap6hu8r.pdfIn PDF document text
    • https://cdn.sqhk.co/jekefebiba/iiPhgid/85412475723.pdfIn PDF document text
    • https://romevezijije.weebly.com/uploads/1/3/4/7/134756673/vukosanixagifov_vekosed_kabew.pdfIn PDF document text
    • http://lyudi23.ru/108276062963oyds.pdfIn PDF document text
    • https://cdn.sqhk.co/wodabakope/hdhaErx/wallpaper_kobe_bryant_3d.pdfIn PDF document text
    • https://cdn.sqhk.co/donewipimep/U0yI2gj/bulumij.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/ggcRJeb/white_button_up_shirt_womens_target.pdfIn PDF document text
    • https://cdn.sqhk.co/tesigasefaxe/jc0hagg/tenkuu_shinpan_wiki.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/faxaxos/99549197168.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/41243027004.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/xedezegif.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/28269417990.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/boomer_sooner_sheet_music_for_trumpet.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.

FilenameKindSourceSize
font_00_sfnt_off0000e20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20A 4812 bytes
SHA-256: d4bff8ff447834691a4fcad01ad8cf754767a68e071aa3fdc080a05c3b0588ef
font_01_sfnt_off0000f282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF282 10212 bytes
SHA-256: 7c99575be2d8853d033a293a82c3158c16261237ac88be69fa7486802963362f

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