Malicious PDF — malware analysis report

Static analysis result for SHA-256 95300c1b716b396a…

MALICIOUS

PDF

73.6 KB Created: 2021-02-24 09:19:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9f80ff1d9376883835df0e5ac47ff6e4 SHA-1: 65f0b01cb582ad2b5363c3ff82dfb69cccadc0b7 SHA-256: 95300c1b716b396ab986ad05a492f232d6a5b264f352eedbd7d1836d82bef21b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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/wix?keyword=ultra4+offroad+racing+mod+apk+android+1 PDF link annotation
    • http://starconflict-game.ru/mathematics_in_the_modern_world_moduleaiok7.pdfIn PDF document text
    • http://egosikenclub.com/gigabyte_ga-x58a-ud3r_rev_1.0_manualpfa9m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391009/normal_5fe0131130e09.pdfIn PDF document text
    • https://damemerivojed.weebly.com/uploads/1/3/4/3/134378109/gebawow.pdfIn PDF document text
    • http://romeita.space/guided_busway_monthly_ticketf7vkh.pdfIn PDF document text
    • http://ig-support-service.com/s_p_letter_status_video34lol.pdfIn PDF document text
    • http://iclod.tech/exoplanets_documentary_2020xmplf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503987/normal_5fc5c90e2bfa1.pdfIn PDF document text
    • http://generatorsale.ru/android_update_for_huawei_mate_752k87.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/how_to_cure_anxiety_by_yogadw1qd.pdfIn PDF document text
    • http://securitycheckingbrowservkcom.xyz/6938413761101ify.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416802/normal_6005a0f063766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449618/normal_60352df862231.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/liwara/adobe_reader_for_android_phones.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/rapuxosodo.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/boom_beach_private_server_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/31854728749.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/pebud.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_off0000e1f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F3 5492 bytes
SHA-256: f7f0e49f31b81a59d986e84f733a618293e81ed8226d2027a7034b63f7977fb4
font_01_sfnt_off0000f4a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A4 10736 bytes
SHA-256: e6ca604b1b69a5fe8a51950b290e64e827b82a99e855efed8f60dbe2f02e43db