Malicious PDF — malware analysis report

Static analysis result for SHA-256 4705836687f688e9…

MALICIOUS

PDF

72.1 KB Created: 2021-03-02 13:47:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 28a2a731e9194a25a1e0a85140a4fec3 SHA-1: d816fc5831b3cfd6163db31f1fcde7e6031d3e45 SHA-256: 4705836687f688e94f7f738b1b8b274d5325b66598d0af166cb29da18573a13f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/award?keyword=symbol+scanner+setup+stb4278 PDF link annotation
    • http://movawizaxaxato.mywebcommunity.org/ge_washer_repair_service_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/siripeka/gw5idWn/animal_message_alert_tones_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/suxavawudomo/Wjj6Tws/dozaselegekipemedupil.pdfIn PDF document text
    • https://cdn.sqhk.co/jerowerar/84hdid3/dexikolafajafixenowusamuj.pdfIn PDF document text
    • http://gagitevanonuti.mywebcommunity.org/89687676484.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/idhhGgc/sunrise_smart_tv_apk_2019.pdfIn PDF document text
    • http://jijuduli.mywebcommunity.org/gobibazudoneweminalorudod.pdfIn PDF document text
    • https://cdn.sqhk.co/wosepimi/xw2iavj/color_splash_hd_wallpapers_1080p.pdfIn PDF document text
    • http://kuzexamipapoxip.medianewsonline.com/algebra_1_2_third_edition_answers.pdfIn PDF document text
    • http://noxitafevinuv.22web.org/hypertension_aha_guidelines_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383147/normal_6022da4b82a1d.pdfIn PDF document text
    • http://xovijezup.mywebcommunity.org/56464384069.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://damikofem.rf.gd/bloody_roar_2_ppsspp_free.pdfIn PDF document text
    • http://resisimokopi.epizy.com/17672896512.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_off0000c650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC650 6272 bytes
SHA-256: 62d5fc59f13f69fb09e03931561ca544b6abf0e793e6e8cea391f8342331bfe3
font_01_sfnt_off0000dc49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC49 5916 bytes
SHA-256: d31f0eef5037948ef507a1011b318baf3b3f0df27c759b47017c63ab69af1b69
font_02_sfnt_off0000f062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF062 10044 bytes
SHA-256: 9005f314c3934e3269ca018c62c91c4a3ed92627e70cfa121c68117181268d95