Malicious PDF — malware analysis report

Static analysis result for SHA-256 95193ebca3b84c94…

MALICIOUS

PDF

71.2 KB Created: 2021-02-27 00:47:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 518bda6721cbfa8d009bd6345510c593 SHA-1: bb011bce9b8bc7466e176993d4281e52ac2c4ee4 SHA-256: 95193ebca3b84c949c48dac3c129cdf043efc0feed9427864cbed95d3937e44d
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://fokemale.ru/award?keyword=periodic+table+worksheet+answer+key+page+36 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365549/normal_600f4c2d704ab.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/62478626685.pdfIn PDF document text
    • http://vipimuxatomefi.medianewsonline.com/todavuworimatasujenup.pdfIn PDF document text
    • http://vawadofofasip.getenjoyment.net/eset_smart_security_8_activation_key_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373987/normal_5fd63ad0d92b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457296/normal_60036bc1dfdb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481667/normal_602e534f47761.pdfIn PDF document text
    • https://cdn.sqhk.co/vilonunufuk/WjijbOI/world_war_heroes_hack_dinheiro_infinito_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405650/normal_60103a7a43f61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385197/normal_60313b4298634.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_602e6343a35fc.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/vebifuzibekebodisa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454691/normal_6024266ae132d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370280/normal_6018a4c4d7dd0.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/savukojubusum/hitachi_seaside_park_guide_map.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/ayyappa_bhajana_songs.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_off0000d7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7AD 6052 bytes
SHA-256: db2c660eb63456482e959df4eeb599e48a4c02a05209e3b14118e84d314e13b7
font_01_sfnt_off0000ec4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC4F 10332 bytes
SHA-256: 56f4c25d7aa98c1583c4c29c3e9b6993d13f6c011d8b8a41ad4073a7b335aab7