Malicious PDF — malware analysis report

Static analysis result for SHA-256 111a3abd35364a9e…

MALICIOUS

PDF

72.8 KB Created: 2021-02-13 01:59:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5d8950196336773d5c159f7ee1873dd4 SHA-1: 9abf4b07d89d898958ab1ec3cfb71c1585599775 SHA-256: 111a3abd35364a9e37c6dea28402dff83c10f136787508612b5388c7024f0d28
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://jottigo.ru/aws?utm_term=budget+report+definition+in+finance PDF link annotation
    • http://milanbeachs.space/19353940719ddp7g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386591/normal_601f9c0434c54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365594/normal_5fdb35ce23627.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420586/normal_601d840fa56c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427519/normal_5fdbf40a66e31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480383/normal_6002f2e1ae9e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499636/normal_601f642e6db29.pdfIn PDF document text
    • http://tk-time.site/adobe_photoshop_elements_2020_manualkvf0m.pdfIn PDF document text
    • http://allerlo.xyz/58335216062yztiy.pdfIn PDF document text
    • http://segway-wheelchair.ru/891885168529d5g8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451228/normal_6022cc94e6126.pdfIn PDF document text
    • http://meinekarten.best/nimejoxofusebimozozijuki0jkkz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463306/normal_5fe6113d70aff.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/neporezofov/zanunoxekerolavixev.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/d_d_guide_5e.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_off0000e0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0EC 5160 bytes
SHA-256: 002b2f7dad735e94bd904ea6438bd004a41600fd7e8d33c70adccea5c3cf8499
font_01_sfnt_off0000f295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF295 10500 bytes
SHA-256: 3c28064fefd53d89f542f1b9eb3593775f4d7d51966e48d0020fca99a233d1bd