Malicious PDF — malware analysis report

Static analysis result for SHA-256 c30cd5808643b18f…

MALICIOUS

PDF

67.2 KB Created: 2021-02-03 20:43:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e34da9e2abfe65bce313a0eaa6590375 SHA-1: b6c6eed5a6a888b5ffff7b1208b768506ce1f994 SHA-256: c30cd5808643b18f21f17983c25e48b397b068d0dde4c1c97b215399d8279992
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/wb?keyword=carcavelos%20surf%20guide In PDF document text
    • http://oneshops.space/street_of_rage_remake_android_ppssppqy6ch.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383446/normal_5feb9469ee217.pdfIn PDF document text
    • https://cdn.sqhk.co/dojikerujuwo/ijhjggb/gedem.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/jiKgjn0/seesaw_app_download_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/bGiegjq/download_crack_city_car_driving_1._5._8.pdfIn PDF document text
    • http://copyright-securityx.com/amazon_gutschein_code_nicht_leserlich3mwt6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476954/normal_5ff0948e054f7.pdfIn PDF document text
    • http://copyrightshelpscenters.com/jatug2dzxt.pdfIn PDF document text
    • https://cdn.sqhk.co/vikafaselida/jdt0Hii/wafegegosamiv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502906/normal_60000ee87bf7b.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/vososasoxumete/rrb_ntpc_admit_card_ajmer_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/madotavoxekezumofuzugale.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/22958980426.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/17553400824.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/51958262601.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_off0000c8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8D5 5156 bytes
SHA-256: 4d772d97fb5fa23984cd7eafe2322bb8d018271e67eaf78937c3b704684fce77
font_01_sfnt_off0000da6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6E 11304 bytes
SHA-256: 1d7b72d80e8777d62152780fc1bba8453635b9cf39ab81c3c25e2b954202c081