Malicious PDF — malware analysis report

Static analysis result for SHA-256 8337299b9f401462…

MALICIOUS

PDF

70.0 KB Created: 2021-02-26 04:36:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3606de7728ce1ad2ea00b911509e9dd1 SHA-1: 6e27c56225f1e4f69f5587a11d69267a7ae825db SHA-256: 8337299b9f401462f02da41698e73c450158a61f94cf103358bd8d977903847f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=twist+me+uprowadzona+anna+zaires+pdf PDF link annotation
    • https://safusugefivelu.weebly.com/uploads/1/3/4/3/134346528/vebefemiguwemopi.pdfIn PDF document text
    • http://pepujolajerikur.66ghz.com/anthem_blue_cross_medicaid_appeal_form.pdfIn PDF document text
    • http://zivudib.66ghz.com/80601404130.pdfIn PDF document text
    • http://characduwe.space/10625259209doyxp.pdfIn PDF document text
    • https://kuxiwidozerapi.weebly.com/uploads/1/3/4/7/134728536/lafunipet_simokikuzalekow_kuzew_lewubatasinedir.pdfIn PDF document text
    • https://ripufimavewin.weebly.com/uploads/1/3/6/0/136099474/zituwodos.pdfIn PDF document text
    • https://waruzakelejabu.weebly.com/uploads/1/3/4/6/134600446/nesada.pdfIn PDF document text
    • http://tronreserve.online/50371144032awqxy.pdfIn PDF document text
    • http://golomashvanna.xyz/kuzoxubetixcrfb.pdfIn PDF document text
    • http://krepezh.guru/towulirumosojekejisasiweir70l.pdfIn PDF document text
    • http://aov.one/7297165551znbsx.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/unitedhealthcare_dental_provider_customer_service_phone_number.pdfIn PDF document text
    • https://rigegafotu.weebly.com/uploads/1/3/0/7/130740045/1063859.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tivakifuzir.atwebpages.com/ronibere.pdfIn PDF document text
    • http://dufatiji.rf.gd/bose_frames_owner_s_manual.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/brian_tracy_eat_that_frog_amazon.pdfIn PDF document text
    • http://gefutikavuza.epizy.com/myriad_pro_regular_google_font.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC769 5128 bytes
SHA-256: d657c9cfcea48b3f6d6242e58cd2d4bda7648f6413faacc4ba4409bd0d7cf262
font_01_sfnt_off0000d8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D0 11008 bytes
SHA-256: 1a0d599f2a2eee26671e444819bd12bcc5eecb6bedb97ff5e76faa208d8ca48f
font_02_sfnt_off0000fc51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC51 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361