Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aff8bbcc8112e80…

MALICIOUS

PDF

72.6 KB Created: 2021-02-11 14:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a8cb52ec126c152f334ad75370aad996 SHA-1: 4540e68c1acdf54ee56c5cc42c81a1cf080c3d88 SHA-256: 2aff8bbcc8112e806f6562e6cd7797ee3b522295a4d66de37865e6e7fae5568c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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=love+style+life+pdf PDF link annotation
    • https://cdn.sqhk.co/jefapukawore/h46ePia/best_free_qr_scanner_app_for_android_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/viwiratoposu/cpgggf5/eset_mobile_security_antivirus_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/livixugakuf/MJie0hh/survival_craft_2_mod_furniture.pdfIn PDF document text
    • https://sunarikibuniteg.weebly.com/uploads/1/3/1/3/131381519/petepud.pdfIn PDF document text
    • https://xesapexoxes.weebly.com/uploads/1/3/4/6/134633169/a8710b61a.pdfIn PDF document text
    • https://losaburi.weebly.com/uploads/1/3/5/3/135322327/xusinetaxeka_zunasalipuxo_wowepunufemobu.pdfIn PDF document text
    • http://virenoveza.22web.org/lojewutinaxowerabiwez.pdfIn PDF document text
    • https://cdn.sqhk.co/suxavawudomo/jiiaPjb/noaa_hourly_weather_forecast_seattle.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/Oia1sid/gemilekamox.pdfIn PDF document text
    • https://cdn.sqhk.co/jogekiluse/hg7gdhf/mexukejililuzuxupaba.pdfIn PDF document text
    • https://vojonabof.weebly.com/uploads/1/3/1/3/131383251/pezoxipi.pdfIn PDF document text
    • https://vukuzimina.weebly.com/uploads/1/3/4/1/134109202/fuwunilowulogonug.pdfIn PDF document text
    • https://xowavexinoj.weebly.com/uploads/1/3/1/4/131408618/zumexamisejopasa.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/djehhgi/44664627539.pdfIn PDF document text
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/08ce384e5e76.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kiwivesunita.epizy.com/mivomeguxijenorinowo.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_off0000e211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE211 4832 bytes
SHA-256: 90eb9c1e76dbe369d38969052e2a22076137087242b3d94fb07f80c685ae4074
font_01_sfnt_off0000f2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AE 10228 bytes
SHA-256: f9e711d3a3dfc96ae37413cbf5e0fd27f1fc0e361e887fbe1f75b0de29d17337