Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca56dc524db95386…

MALICIOUS

PDF

68.5 KB Created: 2021-02-04 03:46:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e1deea5d5ce1dd9d325d36239443551a SHA-1: be07001b8932758a80e60ed4cb2789b21bb23c05 SHA-256: ca56dc524db9538605acba06679bba31d873692a0acdef3426766134a91075b5
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://bologen.ru/123?utm_term=kip+irvine+assembly+language+solution+manual PDF link annotation
    • https://cdn.sqhk.co/pimibopugugo/eOxUjb8/widatikixik.pdfIn PDF document text
    • https://bubunixijasebed.weebly.com/uploads/1/3/1/4/131407035/nevux.pdfIn PDF document text
    • https://cdn.sqhk.co/lutugivaje/hdsib3C/90_s_album_songs_mp3_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411511/normal_5fe6f2061f6b4.pdfIn PDF document text
    • https://cdn.sqhk.co/tatudawo/jgfjfgc/pixels_app_apk_download.pdfIn PDF document text
    • https://zezogilak.weebly.com/uploads/1/3/0/8/130874046/figufopejodule.pdfIn PDF document text
    • https://xiforamuti.weebly.com/uploads/1/3/4/6/134611992/fcae34b67476e.pdfIn PDF document text
    • https://cdn.sqhk.co/kerodamajop/MnoGjdb/gegeletumolamet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454670/normal_5fc7b8a3222df.pdfIn PDF document text
    • https://cdn.sqhk.co/fezivabuja/iifShhs/find_my_mobile_verizon.pdfIn PDF document text
    • http://firstreadersclub.com/mahalaxmi_kannada_calendar_2020_free_downloadr1k3n.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/Te6jcii/rolling_stone_magazine_logo_history.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/kafises/136236802.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/troubleshooting_guide_l_g.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/automotive_lidar_market_report.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_off0000cb84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB84 5412 bytes
SHA-256: a2a7dd16a808aa2ad25c7acc0d2b086f9e17b8144ce83aed174a10065e590c1d
font_01_sfnt_off0000ddea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDEA 11516 bytes
SHA-256: e2d4dc50bfad9d361be4797878baab663fc521b5aebd7ca1a52e1fc864feb8fa