Malicious PDF — malware analysis report

Static analysis result for SHA-256 2730df26a950e37b…

MALICIOUS

PDF

71.4 KB Created: 2021-02-14 13:19:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5e70c6321c8027caa5f627763fa573e9 SHA-1: d65d58adf5f8f3ac0d6daade075cd39ef4d2600d SHA-256: 2730df26a950e37b0afbe576548816f423e14f813eeebecb436923421780665c
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://bologen.ru/wb?keyword=algebraic%20expressions%20worksheet%20grade%206 PDF link annotation
    • https://bijejumutitin.weebly.com/uploads/1/3/1/4/131454352/maroronumif-konilinekar-vakudesamozoko.pdfIn PDF document text
    • https://vuvonuzomuvi.weebly.com/uploads/1/3/4/5/134508102/498843.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452608/normal_6020aec4f1140.pdfIn PDF document text
    • https://fometixivoros.weebly.com/uploads/1/3/1/6/131637143/javezipesiv_sevivitik.pdfIn PDF document text
    • https://pobubejafak.weebly.com/uploads/1/3/5/3/135314602/5c268c0e41.pdfIn PDF document text
    • https://kunimagim.weebly.com/uploads/1/3/4/6/134608209/bilodimokop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422877/normal_5ffecf3c5e4a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492259/normal_6025154e13fe1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480904/normal_600ab7b7ae223.pdfIn PDF document text
    • https://voxivunesiru.weebly.com/uploads/1/3/1/4/131407918/vigurij.pdfIn PDF document text
    • https://terigemi.weebly.com/uploads/1/3/1/8/131856376/e7e814bf77.pdfIn PDF document text
    • https://begazasageb.weebly.com/uploads/1/3/1/6/131637419/3407752.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484812/normal_600e07ecb5cde.pdfIn PDF document text
    • http://gasorutika.iblogger.org/majavuxifedisadod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470683/normal_5fcfb126f0164.pdfIn PDF document text
    • https://bitabado.weebly.com/uploads/1/3/1/4/131436956/ziwufege.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://woxepakaj.epizy.com/kezenimepodo.pdfIn PDF document text
    • http://selamamoli.epizy.com/76594664642.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_off0000d80d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80D 5844 bytes
SHA-256: 7b496ec46c9f14f0b06920337ca85b9ef60855a597e60a01d306bd208918e488
font_01_sfnt_off0000ebfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFC 10696 bytes
SHA-256: b9d3842c5b7b9b8259388608962e5d9086f028edc302363edc9cb398f6c99360