Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0da0ad3211dc61…

MALICIOUS

PDF

84.3 KB Created: 2021-02-10 15:16:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6873769f628232f4d69b2fd6c0ab00bc SHA-1: 8fdd4dac4df44152e2ca9570366db9b5bea2b45c SHA-256: ca0da0ad3211dc61f92cdda379c923d6edc1ca8f24fe76b6c07456c5e967819e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=watch+free+movies+online+apk PDF link annotation
    • http://idealicaitalia.website/bni_connect_mexicovvx2z.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/guide_for_pes_2017_pc_free_downloaddtzpw.pdfIn PDF document text
    • http://beststudent.space/10232601583da16e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452381/normal_5fe1f4c365dd8.pdfIn PDF document text
    • http://varietystore.website/11_snf_ingilizce_ders_notlarxrwej.pdfIn PDF document text
    • http://instapriz365.online/nunuderezomegarefo0y3e5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416792/normal_5fc9464f4e2eb.pdfIn PDF document text
    • http://trixy-matrix.space/xowezekibigiwujuvub7b0hs.pdfIn PDF document text
    • https://cdn.sqhk.co/gawivoxolo/8ohdAr6/3001721249.pdfIn PDF document text
    • http://znakomstva18x.site/90745919849gm34g.pdfIn PDF document text
    • http://probkin34.xyz/663152265610bfsf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382412/normal_5fda961b976ac.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/tojabixefova/audio_song_chapak_chapak.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/refractory_constipation_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/bharathi_kannamma_full_movie_tamilrockers.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_off00010df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DF9 5392 bytes
SHA-256: 3338c811f8f257b1f96e84e7ec245026352bb9ec010849389e4558f8c65794be
font_01_sfnt_off0001203b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1203B 10692 bytes
SHA-256: 0cf160b239b8979176442c7d31dcd4f80d8fa870cf25bdb53c75e81f04a9ca0d