Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4994ce345a79764…

MALICIOUS

PDF

69.6 KB Created: 2021-02-12 15:03:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2b372c7bb77cc18251fb74266e3d1cb3 SHA-1: b82ac2b8bc643a25790d9b5a66c4b91491cf20ca SHA-256: b4994ce345a79764aeecc003387f37858f06c7fb5c9767e5ad38322895bdc63b
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=dragon+ball+z+devolution+3+unblocked+weebly PDF link annotation
    • http://support-copyrighthelpservice-about.com/parliamentary_form_of_government_ppt3nwtn.pdfIn PDF document text
    • https://cdn.sqhk.co/zefipuvuwifi/jjjjiif/sapilizizulolig.pdfIn PDF document text
    • http://ostanni.fun/25607760764ro7bt.pdfIn PDF document text
    • https://jirorenuges.weebly.com/uploads/1/3/0/8/130874518/kakulijotom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446260/normal_601d37b21b1d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387046/normal_601675dd17db6.pdfIn PDF document text
    • https://cdn.sqhk.co/tenokesime/ZGicSjc/3898568839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385880/normal_601789c03b5d6.pdfIn PDF document text
    • https://cdn.sqhk.co/midipumep/PmzOcge/49662069406.pdfIn PDF document text
    • https://xaxozugine.weebly.com/uploads/1/3/2/3/132303195/cb5898.pdfIn PDF document text
    • http://future-techno.ru/29053089181rhurm.pdfIn PDF document text
    • https://cdn.sqhk.co/zabeluzitema/Lifjbgi/nemolapababovuzuxowes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444117/normal_601bcacf1ba46.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393628/normal_5ff417c6c5b91.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bunokupisosep.epizy.com/66568020561.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/hero_bengali_movie_song_320kbps.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/action_movies_online_free_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/apogee_element_46_manual.pdfIn PDF document text
    • http://kibulirol.rf.gd/advanced_english_grammar_activities.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/android_one_launcher3.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_off0000d141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD141 5600 bytes
SHA-256: 14fa5e9b2642cd275c3949ece0f45c357d16d27cf66baa96a812a68290de214a
font_01_sfnt_off0000e48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48C 10812 bytes
SHA-256: 0ffcb146c599f835e4b4d20d9853a161ceec7403de71b33a3e6be230b4ea59cd