Malicious PDF — malware analysis report

Static analysis result for SHA-256 82aa96768cfc508e…

MALICIOUS

PDF

72.6 KB Created: 2021-02-17 11:20:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0571547c95d279e82a9e8635c8977d76 SHA-1: fee3d4f68ad93d7179b18faf2fda0bd3aa40c5c6 SHA-256: 82aa96768cfc508eb1496f4fc3a133eca9765ce63eac6c1cb376ce3b87e1fe6a
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://jacksth.ru/wix?keyword=youtube+tv+promo+code+2020+reddit PDF link annotation
    • http://copyrighthelpptteam.com/coca_cola_hbc_annual_report_201730jf7.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/0bfc49ea52675b4.pdfIn PDF document text
    • http://bekunogoxabune.iblogger.org/lake_guntersville_fishing_report_november_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_6018792317312.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/jctaf3l/laxoxelidagemukisanu.pdfIn PDF document text
    • http://edarudost.online/pumejemedokejituguzisenknzp.pdfIn PDF document text
    • https://cdn.sqhk.co/lugizumevemu/hbhajgi/42714264598.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/heX9gft/top_hashtags_instagram_2020_fashion.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392470/normal_602b2b005e0ac.pdfIn PDF document text
    • https://cdn.sqhk.co/duvetezoje/DUSgjgj/gofexubefil.pdfIn PDF document text
    • https://cdn.sqhk.co/kufagilan/2N4gigf/lofowi.pdfIn PDF document text
    • https://raxaregos.weebly.com/uploads/1/3/4/3/134363135/8764265.pdfIn PDF document text
    • http://igrarazuma.info/zanoxunadujuwomugucm0a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411717/normal_6008cd7e7143c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370778/normal_5ffb12c7d287f.pdfIn PDF document text
    • https://cdn.sqhk.co/rirerujel/c8T5MWs/67680437447.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nodefojabotozij.rf.gd/where_did_they_film_cloud_9.pdfIn PDF document text
    • http://wexalaz.epizy.com/tubekosidubilanawas.pdfIn PDF document text
    • http://suvokejixu.epizy.com/google_sheets_how_to_make_cells_bigger.pdfIn PDF document text
    • http://derekage.epizy.com/1894011296.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD24A 5008 bytes
SHA-256: 1e5ccc04d0d33abacb7b8751b3a9faadea42268fea2c8ab735097290a0638e23
font_01_sfnt_off0000e35e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35E 10436 bytes
SHA-256: aa5bcb4ceca0c58889a0de8e2014ae6eb9a4c84e223ffd468089508bbdf43f6f
font_02_sfnt_off00010704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10704 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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