Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1aff617f7cac0d6…

MALICIOUS

PDF

72.7 KB Created: 2021-02-13 12:05:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d6dc895d43c3c5b8320a1888d4f79a0e SHA-1: e45090ba297ad9dc6a237958d21d70cf45ec28b4 SHA-256: a1aff617f7cac0d635035344fab86ca6c08ffc0efacd9e9c2880273287020a03
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://crophysi.ru/wix?keyword=adobe+acrobat+pro+apk+full+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4383131/normal_5fd33effc278a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489056/normal_600a01e1532e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448116/normal_6011aad96ef6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462775/normal_6010017ec838f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446773/normal_5fcca1652b0ae.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/bgghage/fozogojaniji.pdfIn PDF document text
    • https://cdn.sqhk.co/gulanuwe/hckjhWV/renaissance_ap_world_history_definition.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382004/normal_5fc5beab2a628.pdfIn PDF document text
    • https://cdn.sqhk.co/mezawuso/icHpgiq/kepabuwegabisizesavu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nujexaraxeb.epizy.com/studio_background_full_hd_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/fiber_sheet_roof_design.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/boiler_control_system_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/71812297711.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/xmanager_5_free_with_product_key.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/chirutha_puli_tamil_songs.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_off0000d2c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C4 5048 bytes
SHA-256: 95352244b7f9f9225135a31f52a50ed4be450627faed81ae7291b10de18cbe41
font_01_sfnt_off0000e3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FB 10012 bytes
SHA-256: a4317257404e98cd76e8a642b8b8ec74bd855d614f3488c713f0a56101157ac9
font_02_sfnt_off00010638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10638 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.