Malicious PDF — malware analysis report

Static analysis result for SHA-256 c734b9488a1a1f8d…

MALICIOUS

PDF

62.6 KB Created: 2021-02-14 08:31:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c39e6878714b5a7c85aa622160531c0c SHA-1: 967ad3713577e602e15c387d74f0947ce1292fe7 SHA-256: c734b9488a1a1f8d5b1812bb97daadd91269d91ad6d441831d8bcafbf0a749d7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=naming+and+drawing+alkanes+alkenes+alkynes+worksheet PDF link annotation
    • http://tedusoxunola.22web.org/annamayya_cinema_patalu_ing.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/jagjAjc/basketball_legends_unblocked_games_6969.pdfIn PDF document text
    • https://wuzituvivewug.weebly.com/uploads/1/3/5/3/135306668/53eff5d529e12e.pdfIn PDF document text
    • https://nelizozab.weebly.com/uploads/1/3/0/8/130874358/2859312.pdfIn PDF document text
    • https://rizedugo.weebly.com/uploads/1/3/1/4/131453818/8755273.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501632/normal_601f5881d1a4e.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/e2hblia/world_chase_tag_championship_prize_money.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzufoxo/cp6geji/wreck_it_ralph_2_time_period.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493867/normal_5fec053bc7c12.pdfIn PDF document text
    • http://vaxuserinux.22web.org/genichiro_way_of_tomoe_guide.pdfIn PDF document text
    • https://narepugajud.weebly.com/uploads/1/3/0/7/130775299/fivemawuvixenadunam.pdfIn PDF document text
    • https://cdn.sqhk.co/kupodakojav/icRjhjj/bajovutukofef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421038/normal_6021a96d5b175.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487200/normal_5ffac50f11cce.pdfIn PDF document text
    • https://livuwijonirib.weebly.com/uploads/1/3/4/7/134732661/2fa044de.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zerodawoti.rf.gd/zakuwinumivixa.pdfIn PDF document text
    • http://roninifuwevol.rf.gd/vokabinukivikowon.pdfIn PDF document text
    • http://magajavopisili.epizy.com/gestalt_character_sheet_pathfinder.pdfIn PDF document text
    • http://xutulatovemi.epizy.com/xajugajebavok.pdfIn PDF document text
    • http://kujujigufa.epizy.com/bopetuwukesoser.pdfIn PDF document text
    • http://gitogopafo.epizy.com/vevorakutixivefubesa.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_off0000b74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB74E 5464 bytes
SHA-256: 9d3fda2731274d86c46ed68d129b8ee4a59dd1223eb8162af6d419b1aa4ba7d6
font_01_sfnt_off0000c9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9D2 10236 bytes
SHA-256: 6fe13851ca83df76ea64d6628ee96f2a3ae78be61a32ae99d575b9109b376b3a

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