Malicious PDF — malware analysis report

Static analysis result for SHA-256 33ced65a6d2e9a5c…

MALICIOUS

PDF

65.8 KB Created: 2021-03-03 10:28:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d0159d8e1921204efadb1bbc5e653e2b SHA-1: b9a6fb155bcb7bf875732ed34007319b1208d219 SHA-256: 33ced65a6d2e9a5cd0c9efaa5791b2da7b69bcd250bde4149df4dddce1c99cc5
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://xajibur.ru/wix?keyword=minecraft+pe+download+aptoide PDF link annotation
    • http://tupaxeguna.scienceontheweb.net/basic_english_worksheets_ks3_uk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413718/normal_600e78cf2dcbf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490754/normal_5fce93d05fe0a.pdfIn PDF document text
    • https://vipapixamez.weebly.com/uploads/1/3/0/8/130814430/xarafosar_woraviselol_tatisa_gilol.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/alimentos_y_bebidas_conalep47ndl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484399/normal_601bce0c4c777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444646/normal_5fc9da74b88ec.pdfIn PDF document text
    • https://jazediwugitali.weebly.com/uploads/1/3/4/7/134730671/dapezevunaginiz_pelusun_wuxoxu_tiloxure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482880/normal_600dec0b4b2a1.pdfIn PDF document text
    • http://my-favshope.online/puwoxi6g8tp.pdfIn PDF document text
    • https://cdn.sqhk.co/lotidonita/1jjhjjb/man_down_tv_show_ending_explained.pdfIn PDF document text
    • http://procripton.com/contrato_de_arrendamiento_sencillo_mexico0p2cl.pdfIn PDF document text
    • http://7lessons.site/bdo_t8_horse_guide40ntp.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/sitok/pegorolajulakefuzupa.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/eulogy_templates_for_brother.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/violin_bassoon_duet_sheet_music.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_off0000c726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC726 5068 bytes
SHA-256: 013313eb5f2d3eed18b80864f492e60d79474611b01bf520c9944e68b90f111f
font_01_sfnt_off0000d896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD896 9872 bytes
SHA-256: f1aca35a9162b61f2bcb29150739a8da690788a7317eee989c2045d6a87bb0d4