Malicious PDF — malware analysis report

Static analysis result for SHA-256 c777eb5536d55fa1…

MALICIOUS

PDF

72.3 KB Created: 2021-03-04 22:07:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 28a09caa045712a48f102cfd12dc487b SHA-1: 48d072714a152fcc9803e7230f0d515291c2e676 SHA-256: c777eb5536d55fa1a70935965e982d0a397446c6c7e1767e2df6c9360cc3f5af
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/award?keyword=is+the+boy+in+the+striped+pyjamas+on+netflix+ireland PDF link annotation
    • https://fisadurubimu.weebly.com/uploads/1/3/1/4/131409264/3efb853.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450240/normal_5fe75ca1446ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495860/normal_6032a2bb2f062.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527164/normal_5fc6bed6dfb3f.pdfIn PDF document text
    • http://zedukibawubige.22web.org/church_anniversary_program_booklet_template.pdfIn PDF document text
    • https://gatepeduvemixif.weebly.com/uploads/1/3/4/6/134669895/9237196.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_603b82d8d7c32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490132/normal_5ff24b61dd72b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496001/normal_600671c3cc5ba.pdfIn PDF document text
    • https://pexarokozisakim.weebly.com/uploads/1/3/5/3/135313666/nutojub_galiw_kaxufikoji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484093/normal_5fd9b284535cb.pdfIn PDF document text
    • https://ganalazukomej.weebly.com/uploads/1/3/4/7/134714395/1478927.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/desenaz/nims_is-_100._leb_test_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be75d309-a72f-44a9-a422-a415b18e0c73/how_many_atoms_are_present_in_a_compound.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/519ca93c-980a-42a6-8fd9-caafbb5dbfc0/sex_and_the_city_2_movie_soundtrack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9216441b-1714-4f71-be26-ac02635afa32/vizio_sb2920-c6_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/guwiguza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af098a31-1ed8-46e5-8979-e84ebcc2975d/78248563803.pdfIn PDF document text
    • http://kamiwivexa.epizy.com/alone_love_hd_images.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/vezalini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfb5bcbb-a4a6-40c7-8568-1e5f9fb381df/36427014492.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_off0000dd90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD90 5604 bytes
SHA-256: 3c9416cd386c49b7484a9fbabd90c90b62c97db6cd665548abb714bfbd0ad9ac
font_01_sfnt_off0000f081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF081 10300 bytes
SHA-256: 86da69c4cb3037ce3794a1a56a9468bd8dfd86a25618d9b6233ee5ec9da1f566