Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a401196c3a10cdc…

MALICIOUS

PDF

66.1 KB Created: 2021-03-02 18:39:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 58a8a5613dc6081da0731f4eade7063b SHA-1: 28c90af72120acf00b44bdbcf38ee4c832d0f8f5 SHA-256: 5a401196c3a10cdc2f21915a1d87e673b79429f7f5914f0d4f9a7285c0778a23
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://soxebez.ru/wix?keyword=borderlands+2+grandma+flexington+story+raid+difficulty PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489994/normal_60209c228ba2b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375206/normal_5fe2f5a056ce5.pdfIn PDF document text
    • http://gabutetidik.22web.org/how_to_play_bass_guitar_notes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497370/normal_6022299b7e041.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393898/normal_5fcb2bb599224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402000/normal_5ff9e8c78ac7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384323/normal_60354684b76c3.pdfIn PDF document text
    • http://makikupake.iblogger.org/nekewowewutavuvarakotemuk.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/tojazudibumogab/12855085586.pdfIn PDF document text
    • http://vujipuxi.epizy.com/tata_bluescope_sheet_size.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/17101234057.pdfIn PDF document text
    • http://favekagopu.epizy.com/74000469441.pdfIn PDF document text
    • http://wumokobaleto.epizy.com/50454858056.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/rajatiwowanusebevezu.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/vojilunexiw.pdfIn PDF document text
    • http://basemamexirenaw.epizy.com/samsung_j7_pro_frp_bypass_apk.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_off0000c505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC505 5692 bytes
SHA-256: 4829c86b025fb798a036696728ff51e14ecbcad067c94b7ead742afd9ae8d5ab
font_01_sfnt_off0000d865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD865 10184 bytes
SHA-256: b38e00e97f41702d4b864b2cf52c34ba463f47074ec09c5d01f62c4053bf613a