Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d086d4559068f1…

MALICIOUS

PDF

75.0 KB Created: 2021-03-05 00:42:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f6ef6d822537e14e6aae63ec163b44a4 SHA-1: 6e1a5f5626e049ae478cfcc9cf4f2de52d36263f SHA-256: 79d086d4559068f16d6bec2545460f61975ee63a107458c2dc3847fe942e53a9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mezovuduw.ru/wb?keyword=law%20of%20sines%20practice%20problems%20with%20answers PDF link annotation
    • http://trynon.xyz/9069445004pstis.pdfIn PDF document text
    • http://gudelew.mywebcommunity.org/pukevojinubuxabaganidisot.pdfIn PDF document text
    • http://healthyforczechrepublic.site/safelodusewusuduvakinnef88.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/kayla_itsines_bbg_week_1_arms_and_abs.pdfIn PDF document text
    • http://vashe-zdorovie.xyz/dieu_nest_pas_mort_film_streamingyv0si.pdfIn PDF document text
    • http://martakkord.ru/tin_tin_chinese_restaurantaac2o.pdfIn PDF document text
    • http://sigisuzuk.getenjoyment.net/robada.pdfIn PDF document text
    • https://jidupedepinamup.weebly.com/uploads/1/3/2/6/132680921/xilomipafoj_makeruxof_xaxibinige.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/5Aghzhc/car_shifter_cover.pdfIn PDF document text
    • https://lepifopinitomo.weebly.com/uploads/1/3/2/6/132696280/5c007352a.pdfIn PDF document text
    • http://wusozupu.mypressonline.com/66273286320.pdfIn PDF document text
    • https://rizizisexulap.weebly.com/uploads/1/3/1/4/131407181/buninifijuzeb-juzajitaxino-sotegibujeruke.pdfIn PDF document text
    • http://vimobewawulipiz.mypressonline.com/46218958257.pdfIn PDF document text
    • https://cdn.sqhk.co/viwedanej/aidia0a/hepatocellular_carcinoma_lesion_icd_10.pdfIn PDF document text
    • http://cashbackmoney.info/aliphatic_hydrocarbons_notesfekx9.pdfIn PDF document text
    • https://gomimujexewawid.weebly.com/uploads/1/3/1/0/131070583/zabukugetigaruzad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rofuvawitarul.atwebpages.com/martin_lutero_95_tesis_resumen.pdfIn PDF document text
    • http://tirisesu.onlinewebshop.net/1742634950.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_off0000e3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B4 5428 bytes
SHA-256: 8335bc547b087d232fa152341d48cc5c0d439b6dca5e3c89811808789909bf58
font_01_sfnt_off0000f619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF619 11968 bytes
SHA-256: fed2e07b497cce941957595c112185fc1321a758fc95ee589ad2e9bc39a8ab65