Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dea7b3e97bc32fe…

MALICIOUS

PDF

69.8 KB Created: 2021-02-22 06:15:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 88554d2566a10159b383306cf2764792 SHA-1: b2642298cdd96890fe5c92a43c83a15c0cd9a8b0 SHA-256: 3dea7b3e97bc32fe97c8f9f7925ca91e5bb73ab0ec48bd6dd239674cca74c993
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://jottigo.ru/wix?keyword=nuclear+decay+pogil+answers PDF link annotation
    • https://cdn.sqhk.co/mixaluwekitu/ghbO0hh/the_farm_sassy_princess.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383321/normal_5fe9cd607706c.pdfIn PDF document text
    • https://cdn.sqhk.co/tazakabebilo/gee7Kib/kuwobowerogezawuv.pdfIn PDF document text
    • http://pesale.pro/wakepuxiwisusudovojp6nb.pdfIn PDF document text
    • http://ttttrrrr.space/candy_run_5k_20200angg.pdfIn PDF document text
    • http://healsmall.space/scratchjr_for_windows_7wnd61.pdfIn PDF document text
    • http://dmgameplan.com/ninevejabuwagotu3eqt.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/minegikukovel/32969760149.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/dual_name_affidavit_format_in_word.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/rarexojimunosovubukodonos.pdfIn PDF document text
    • http://pekuvem.epizy.com/naruto_vs_pain_full_video_free.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/78406445303.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/wepurusitinemud.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/bluejackets_manual_editions.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_off0000d4c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C8 5404 bytes
SHA-256: e5d7260f8bae3f638a90434de957c2f6ac1e631a311fef9a5eeb104c361fdc79
font_01_sfnt_off0000e759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE759 10200 bytes
SHA-256: ee9c7a33ca92a6e1c6ca0c71e5dd3c18d9311f92adaf475acb30cc34b1d6e217