Malicious PDF — malware analysis report

Static analysis result for SHA-256 27134eed4b638e95…

MALICIOUS

PDF

51.9 KB Created: 2020-11-08 20:34:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-02
MD5: 126452e139fa75374c9a14f206552d80 SHA-1: d5370792bc531db2cf3af5e4f15a5f67c89c4c9b SHA-256: 27134eed4b638e95d5b671cff472edb038b07367fb9721e5ad1f26dd2069e702
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/aws?keyword=ipad+model+md531ll%252Fa+ios+10 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370092/normal_5f8b3d55aabc6.pdfIn PDF document text
    • https://botomaluxezevip.weebly.com/uploads/1/3/4/3/134340767/6153542.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408853/normal_5fa3d9965c8d7.pdfIn PDF document text
    • https://kunulidozejenu.weebly.com/uploads/1/3/3/9/133997834/1d449172748edc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428043/normal_5fa08a886b018.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/taneze_luxezasexozuva_nezin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368489/normal_5f88ec81edc5a.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/kunivelulaga.pdfIn PDF document text
    • https://ponixojezunuto.weebly.com/uploads/1/3/0/9/130969897/pinarevimasebesa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424330/normal_5fa1c0c8669b3.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007cad.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007cad.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000b4c1.bin)
    • https://s3.amazonaws.com/kavitokolezub/72062616615.pdfIn PDF document text
    • https://mudupetem.files.wordpress.com/2020/11/77662265609.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/80654396647.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/2829321469.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 extracted file (font_00_sfnt_off00007cad.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAD 5064 bytes
SHA-256: 590874c6fb9a20026d5487d4c1736b81efb215061ebd8a991b5dc94b2b2de95e
font_01_sfnt_off00008deb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DEB 11412 bytes
SHA-256: 94a3eac7551f931ad211cd42290f1e5c9eb0d790ab9c1690b6acf41c8e86f36b
font_02_sfnt_off0000b4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4C1 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378