Malicious PDF — malware analysis report

Static analysis result for SHA-256 2816df135a1c2718…

MALICIOUS

PDF

71.9 KB Created: 2021-02-22 02:35:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7d48ee3c8c29beac845d0e9f2a46c348 SHA-1: 765b8566d22d31211f28e468aac04790fedfc52e SHA-256: 2816df135a1c2718eb212355a5a39e015c29690561edd19cff5eac04d4cfe391
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://druttle.ru/wix?keyword=download+geometry+dash+apk+full+version PDF link annotation
    • http://gloslides.com/formal_definition_of_recessiono775x.pdfIn PDF document text
    • http://aycotoro0.xyz/legend_of_heropolis_mod_apk_unlimited_moneys9k7z.pdfIn PDF document text
    • http://austritkfa.com/sims_3_vs_sims_4_graphics_requirementsy2gev.pdfIn PDF document text
    • http://nunajurum.iblogger.org/facebook_bold_text_formatting.pdfIn PDF document text
    • http://carbags.site/business_analysis_certification_trainingyfr5a.pdfIn PDF document text
    • http://zhenskiizhurnal.ru/bumblebee_transformers_animated_humanvlioh.pdfIn PDF document text
    • https://vivuwugo.weebly.com/uploads/1/3/0/9/130968913/ragonaz_zofesipam_tanexemawibet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487918/normal_601494da8d72e.pdfIn PDF document text
    • https://lirisuvobuku.weebly.com/uploads/1/3/5/3/135399047/917888a24fe.pdfIn PDF document text
    • http://nanolenka.xyz/833272265146j4ha.pdfIn PDF document text
    • https://xitolomeka.weebly.com/uploads/1/3/4/0/134012462/b4f8164a18.pdfIn PDF document text
    • https://vowabogebem.weebly.com/uploads/1/3/0/7/130775978/nuxelavoraw_kobadekazaderu_ropavugukumexu.pdfIn PDF document text
    • http://reduslim-eu.site/transformers_forged_to_fight_tier_list_20195m2hv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387928/normal_5fda3db14db59.pdfIn PDF document text
    • http://eroganoficial.site/calculus_for_the_life_sciences_greenwell_2nd_editionfvszf.pdfIn PDF document text
    • http://ipatovaalena.ru/vudojemuxemetejudewuvili4b6vg.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/wemupajese/74304281539.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/kelenivenolurepebesupar.pdfIn PDF document text
    • http://xazerusovugidu.epizy.com/49051086086.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/how_to_cite_annual_report_harvard_referencing.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/sirimuwowaxumonukidofedi.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_off0000dd47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD47 5772 bytes
SHA-256: a1774bfad97cbc78fd569726e2c578df14d83abe979b1ddb72efebeef869a57d
font_01_sfnt_off0000f0ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EA 9740 bytes
SHA-256: 4d400fcab821b4fbba64c5afbc4e45c4db406d79453d8d13bbefac8c5e11071f

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