Malicious PDF — malware analysis report

Static analysis result for SHA-256 160313eb858c3522…

MALICIOUS

PDF

71.0 KB Created: 2021-02-18 10:53:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8b3c4583e692336dc6d0038f29101646 SHA-1: 7750d69f1d27959b00057a1639e4ec18625064a5 SHA-256: 160313eb858c35222067785f6d38ab7c75d029681865f3db97ebb7e042ef6b0d
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://leonvi.ru/wix?keyword=jenn+air+gas+range+repair+manual PDF link annotation
    • https://cdn.sqhk.co/sozaxejiv/widgLic/29038527720.pdfIn PDF document text
    • http://flowerport.store/allahabad_high_court_review_officer_previous_year_question_paper415ub.pdfIn PDF document text
    • http://ralanizu.iblogger.org/72524919642.pdfIn PDF document text
    • https://cdn.sqhk.co/padixemugex/jaughid/kesuziripolupifop.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/bjeggdg/lilitademufal.pdfIn PDF document text
    • https://cdn.sqhk.co/kipasewimoni/fiiAgfC/29356894339.pdfIn PDF document text
    • http://amorexpo.com/10410629722qma94.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/esEiigd/37426179549.pdfIn PDF document text
    • http://gatorama.space/429532339139vii7.pdfIn PDF document text
    • https://bujovuve.weebly.com/uploads/1/3/0/7/130738596/9100782.pdfIn PDF document text
    • https://cdn.sqhk.co/wibezudak/hih4hgq/call_of_duty_modern_warfare_under_map_glitch.pdfIn PDF document text
    • https://ponozivodu.weebly.com/uploads/1/3/0/7/130775347/9483350.pdfIn PDF document text
    • https://velazidolis.weebly.com/uploads/1/3/0/9/130969689/lipulazufulije-nijowewo-vibesomuz-matetipako.pdfIn PDF document text
    • http://xevokegejir.iblogger.org/kefuxosolada.pdfIn PDF document text
    • http://save50it.info/bloatware_remover_apktoyot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xupuwineris.epizy.com/amreli_weather_report.pdfIn PDF document text
    • http://bojoxubifazavij.rf.gd/nonubanugojese.pdfIn PDF document text
    • http://zutotakome.epizy.com/how_to_learn_photoshop_cc_step_by_step_free.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_off0000dc0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0D 5128 bytes
SHA-256: 562aa44e1c1122327d7770080ea5adc89e1dffe74f269c66ac96e15fe5f0dea2
font_01_sfnt_off0000ed6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED6E 9768 bytes
SHA-256: 0b86a57b0042cf2aba2a98020ff70feacc46213e722e63a445b9818a89969f39

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