Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e98ab0e38c57322…

MALICIOUS

PDF

66.2 KB Created: 2021-02-20 07:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 37ea2e1b8e7da24af18f28c215f5b184 SHA-1: 0f304f15f6663329eae89525d58de07b15a527c8 SHA-256: 3e98ab0e38c5732232657f06cec04c068dd8372af7562d7d3e03de6d9be2fa21
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://bologen.ru/wix?keyword=alachua+county+jail+arrest+records PDF link annotation
    • https://wokogosomexar.weebly.com/uploads/1/3/5/3/135322546/9188964.pdfIn PDF document text
    • https://dutagoloz.weebly.com/uploads/1/3/0/8/130814416/resexopatunub_gowoginupofutan_zaxaforepag_xuriwedaxateje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5fe8cc3211b83.pdfIn PDF document text
    • https://kelezisexuva.weebly.com/uploads/1/3/0/7/130739204/5078129.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451229/normal_601fe2268781f.pdfIn PDF document text
    • https://jogosoti.weebly.com/uploads/1/3/1/4/131453036/dalirevus.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/ZhgOljg/merchant_mariner_credential_jobs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393508/normal_602288db74c02.pdfIn PDF document text
    • https://cdn.sqhk.co/zodenizekija/jgh3gfI/25838463456.pdfIn PDF document text
    • https://cdn.sqhk.co/bowevuva/hUghFjj/the_art_of_war_audiobook_free_download_mp3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502436/normal_5fe19574076a6.pdfIn PDF document text
    • https://cdn.sqhk.co/kixarozikej/5vQaaPN/puzabalemafazifudubesuzav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xujekapowizi.epizy.com/jipiganizemuk.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/call_blocker_for_android_2._3_free.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/27748439641.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/gupataluvegafimemixitokad.pdfIn PDF document text
    • http://pufaxutunipoja.epizy.com/46495009995.pdfIn PDF document text
    • http://fofomekurun.rf.gd/29966098157.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/37013601193.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_off0000c851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC851 5192 bytes
SHA-256: 49a4f2c8e5d0e3be8a7a260453c69f5a3b9a9a57ef95d5644ba5f7737b5ee948
font_01_sfnt_off0000d9fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FE 9824 bytes
SHA-256: 8d9f02cf152e2de793c6124e78ffb6483cdddd524c1c192ebac4a7d517a9abb2