Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ffc6e669d78f433…

MALICIOUS

PDF

53.5 KB Created: 2020-10-04 00:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 36298e806446984e75c9726d6cb8b874 SHA-1: f6915834b34740c242237e3ba1b7a27cceb5a925 SHA-256: 7ffc6e669d78f433addded4a9ee8947324bab1b399bd230da34a1f57aaff998b
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://gettraff.ru/strik?keyword=bdo+witch+leveling+guide+2020 In PDF document text
    • http://files.mentalhealth-media.org/uploads/1/3/1/4/131409244/1416099.pdfIn PDF document text
    • http://files.performance-icehockey-english.com/uploads/1/3/0/7/130775337/b51c0468.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/4697/5905/files/fugl_meyer_test_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2555/8436/files/pasujowawexaponewopefefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7967/4272/files/32661799238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4177/8585/files/gitixumowujejobolifiwex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5317/2886/files/9819733846.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1070a98e-18c5-4e87-85ff-b807b2748a18/vufenemepijisunovewob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/890ff8ce-e9fd-41f4-983b-9b1849baefdc/nefogafajevam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca7c66d-7564-4853-9efe-14e1dd1cbdbb/dufilozev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/169f55ac-6cf5-4f74-b9e1-c817e2e3b1e9/51191970705.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8c985d7-ef86-4aef-beed-227007032025/87109117470.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee55913e-940a-4bb3-9386-00cebffff0ea/24896164215.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_off00008aa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA7 5192 bytes
SHA-256: 9264e5e25f028c954f95fad3ba39f8da67f4adf5bfb9daa1c8bfc6a6b7feac7f
font_01_sfnt_off00009c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C70 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000a4fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4FD 10636 bytes
SHA-256: 0103a08ad898793b62fbc464659bb50e3c9890563b51f4fa9d585e8518896eef

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