Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c30124c7ace7036…

MALICIOUS

PDF

73.8 KB Created: 2021-02-24 13:57:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e0785217cedd6d93edc067963abd115b SHA-1: 3b0d51261025b98e6c7d4d9a2f86424a17883084 SHA-256: 1c30124c7ace7036b5c447295134251b778fe8402d430d6ba22cef3741daea00
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wb?keyword=hp%20photosmart%20premium%20c410%20troubleshooting PDF link annotation
    • https://cdn.sqhk.co/norowitidot/Z4RPYgg/stickman_jump_shadow_revenger_war.pdfIn PDF document text
    • https://cdn.sqhk.co/megodiwe/h8jfhb3/gikug.pdfIn PDF document text
    • https://cdn.sqhk.co/sunawopi/ifhh43M/petroleum_engineering_colleges.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471710/normal_5fe2480b632fa.pdfIn PDF document text
    • https://cdn.sqhk.co/sefedetorup/gcQihia/globe_rewards_app_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420924/normal_602b1382c6f07.pdfIn PDF document text
    • http://wotegop.22web.org/how_to_tell_if_your_furnace_inducer_motor_is_bad.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/uzhHigJ/12319986599.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484355/normal_5fc8a12fe2cd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488103/normal_5fd7abc67486c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528915/normal_5fed97274137a.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/hnpjeii/31021482508.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://paxugevobudutis.epizy.com/a_swiftly_tilting_planet_audiobook.pdfIn PDF document text
    • http://wukezize.rf.gd/43889327297.pdfIn PDF document text
    • http://gafevudivexer.rf.gd/manna_dey_hit_bengali_song.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_off0000e2ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FF 5728 bytes
SHA-256: 363d8a06ad3a671f3ce274c5b4a24e19e3c8af595eec354415a3abc924245937
font_01_sfnt_off0000f657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF657 10556 bytes
SHA-256: 247573c8a8affebfe511e7bd5939d1ab21136b74e41542f72dc1aa77ea298dff