Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ee076d86c9d0c9…

MALICIOUS

PDF

66.7 KB Created: 2021-02-14 17:00:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 66f0f0f1e955fc4d23396f9d1ef61c7c SHA-1: 56a97d308e5d434c1a7b8fc13ff8a9fb9f773c57 SHA-256: 14ee076d86c9d0c914806c7a61972a66fdf6eabdc61dc2529520c5c5d5c8bd2b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=how+to+linearize+data+physics PDF link annotation
    • https://fifeguku.weebly.com/uploads/1/3/4/7/134733895/5848469.pdfIn PDF document text
    • https://gatimosuxanad.weebly.com/uploads/1/3/2/8/132814295/pudapotibed.pdfIn PDF document text
    • https://cdn.sqhk.co/duzoxibuf/88jf968/star_traders_frontiers_best_combat_ship.pdfIn PDF document text
    • https://fudakima.weebly.com/uploads/1/3/0/7/130739810/fuzaxexufanaw.pdfIn PDF document text
    • https://mevavenepid.weebly.com/uploads/1/3/1/6/131637679/3dca94704.pdfIn PDF document text
    • https://cdn.sqhk.co/pifixijowoka/hQKxuif/hocus_pocus_dani.pdfIn PDF document text
    • https://xonedapu.weebly.com/uploads/1/3/4/6/134654428/d9e3768311e2d.pdfIn PDF document text
    • https://cdn.sqhk.co/jasekazus/ChhRjfB/96098276419.pdfIn PDF document text
    • https://cdn.sqhk.co/purorelaz/6Zghgjf/tnt_mod_new.pdfIn PDF document text
    • https://cdn.sqhk.co/gobenebovi/ejhiihi/pac-_man_games_on_crazy_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472198/normal_6008df24780da.pdfIn PDF document text
    • https://degegoza.weebly.com/uploads/1/3/0/8/130873855/6872053.pdfIn PDF document text
    • https://cdn.sqhk.co/nosuterib/fgfoijj/wordscapes_level_15806.pdfIn PDF document text
    • https://vatawasuri.weebly.com/uploads/1/3/3/9/133997312/niwopolufogixav-rezepawogel-vifesibu-budisewubibovo.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/Exzjfgj/42214990898.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/gazitif/gender_pay_gap_reporting_acas_guidance.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/67139109801.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/datasheet_esp8266_esp-_12e.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_off0000c7f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F4 5364 bytes
SHA-256: f3a67fa83d68c86ff3964a2ed56c8029af90284df1ce89ba1bf62ce2aa6e5457
font_01_sfnt_off0000da4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4B 10304 bytes
SHA-256: 1853bb0fdf19f44f9ce027a50abe5dbbc820f22b62f9ccc6672ab66b37494d84

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