Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d5b5596977e74d…

MALICIOUS

PDF

71.2 KB Created: 2021-03-06 13:04:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 71b2da5701ae0ce7013d22bee6a58fae SHA-1: 7703d267cf00a73182e3b6bf5c6cd96798a528d3 SHA-256: 08d5b5596977e74d59a525cd85ab005c77b40989ce2ffc1bb90a1f6a93802909
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://yafferge.ru/wix?keyword=slush+invaders+unblocked+66 In PDF document text
    • https://cdn.sqhk.co/kesusevuzep/hjUhjeZ/31885556130.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465914/normal_602941c282497.pdfIn PDF document text
    • https://cdn.sqhk.co/tewokozogop/lsfjcDk/54304568024.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/cjdvggh/42753115691.pdfIn PDF document text
    • http://zugemenelil.medianewsonline.com/99626053788.pdfIn PDF document text
    • http://bigtittybella.com/auditoria_internafs58d.pdfIn PDF document text
    • http://profoto22.ru/297452263203hv94.pdfIn PDF document text
    • https://cdn.sqhk.co/dudumadopole/jdQjgjA/63860001489.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375342/normal_5ffb23c5d30c8.pdfIn PDF document text
    • http://juvovagesubo.mywebcommunity.org/thus_spoke_zarathustra_music_free_download.pdfIn PDF document text
    • http://fineagencyy.com/zorapinexekomamigamaza533ds.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420432/normal_60103979db0f3.pdfIn PDF document text
    • http://vanlit.ru/estructura_de_un_texto_narrativo_ejemplourd9u.pdfIn PDF document text
    • http://justiciaforjustice.com/52788835852j5obu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/99d2e773-4213-4482-ad90-211eefa8c7bc/how_to_check_power_steering_fluid_honda_pilot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90f48749-857f-4620-a054-bd88b283426c/8200025343.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/715968cb-4bd9-4e89-95ed-933e6e027e2f/lixasewuwoli.pdfIn PDF document text
    • https://36622f5a-5a1b-41a5-aa98-965156e47ac2.filesusr.com/ugd/804ff6_db02a7e7e90a4d4e8536c07e3fa9becd.pdf?index=trueIn PDF document text
    • https://c8d0f166-86fd-441b-8df5-aa5e6c6c7644.filesusr.com/ugd/f4b3af_9f939ee3fa9145abbf7b6dbc11038b8a.pdf?index=trueIn PDF document text
    • http://lewinozed.atwebpages.com/thermador_range_cleaning_instructions.pdfIn PDF document text
    • https://1864c106-1a4f-4194-99fb-dabd5a0af450.filesusr.com/ugd/17b194_95181a630581456898cf4583bd79f0f5.pdf?index=trueIn PDF document text
    • http://fotizojorirepel.onlinewebshop.net/practice_polynomial_functions.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_off0000d6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F9 5548 bytes
SHA-256: 9c09761e391679170aed05cc39246575f5c5c81b6eadc018e5fb97d95d0f7ff5
font_01_sfnt_off0000e9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CE 11640 bytes
SHA-256: df139ecb61bfb69083009dad0f6041d5ddf12baa2fa0e8f434355b30890cfe2c

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