Malicious PDF — malware analysis report

Static analysis result for SHA-256 045e27c0bddc8c1e…

MALICIOUS

PDF

72.5 KB Created: 2021-03-13 18:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 00c5f8edf5978d20bdaa2a57f87db36c SHA-1: 1d8fa9581dff399ec222e0fcd1ce6e5d9a482c88 SHA-256: 045e27c0bddc8c1e031b4a1f6f894b5eeffed838636a6122b2c202d9d35e07e9
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=thomas+calculus+11th+edition+key+book+pdf In PDF document text
    • http://my-favshopd.online/black_and_decker_electromate_400_manual2bdwd.pdfIn PDF document text
    • http://samoe-samaya.ru/doligetabujuwanerebonagizuh9o.pdfIn PDF document text
    • https://zikagedatudupoz.weebly.com/uploads/1/3/4/2/134266226/jojodoziluxukanax.pdfIn PDF document text
    • http://daating19.site/kinibepibotifi7wpks.pdfIn PDF document text
    • http://rigodit.iblogger.org/prescott_and_dunn_s_industrial_microbiology_download.pdfIn PDF document text
    • https://jeratevi.weebly.com/uploads/1/3/0/7/130774970/gizalaruxo-wejamusagadugu-bezaxigigew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388289/normal_601cfafc72988.pdfIn PDF document text
    • https://repemokalit.weebly.com/uploads/1/3/1/8/131856723/tupidoj.pdfIn PDF document text
    • http://bogplaktnc.fun/why_is_my_pen_not_working_when_it_has_inkc1dog.pdfIn PDF document text
    • http://todayit.pro/38391880616hrfcs.pdfIn PDF document text
    • https://lakaporizad.weebly.com/uploads/1/3/4/2/134234628/8ed2575b.pdfIn PDF document text
    • http://kukushpa.fun/37425366245vf2gg.pdfIn PDF document text
    • http://clubstore.info/how_to_find_velocity_and_acceleration4xhi4.pdfIn PDF document text
    • http://gladkoe-telo.xyz/kavipelofudedafisesoxiboghbfpm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368218/normal_5fdca9bc042f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382613/normal_6028efed6fcf3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://libogesozi.rf.gd/numaxelesuxilufejital.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17b45244-bbfc-4d62-96a6-1187055aff80/titus_andronicus_band.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fbe909f-e676-41c5-b503-951dbd37189f/sorutulofevajadeta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/752dccf9-1d50-4431-b020-0a7c0f779d8a/52219348753.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4095ca9-95ea-4041-93d8-8cd4b5e44920/sokirudikulivigilonogegus.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_off0000dd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD36 5604 bytes
SHA-256: 43601ce4427d3c4c43255945f02e47b4a0ef1947e0dc30c869bc7968ed9f7306
font_01_sfnt_off0000f02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02C 10132 bytes
SHA-256: 2f009a31b86f2ee90f504e72468ff468f357af7df631f64873ab53baad0a129e