Malicious PDF — malware analysis report

Static analysis result for SHA-256 10612e1bcb52c426…

MALICIOUS

PDF

62.4 KB Created: 2021-01-06 11:19:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f1710e8afbfd8a89b53fb22437d7c45c SHA-1: 649b9d205f8565990c846102026e47880b18a226 SHA-256: 10612e1bcb52c42659e2521e9f0df3b356447934ec91056a2edf14dd8c7453c6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffi.ru/wb?keyword=watch%20free%20music%20videos%20online%20youtube PDF link annotation
    • https://kugodago.weebly.com/uploads/1/3/4/4/134491336/916016.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367947/normal_5fbbea954906c.pdfIn PDF document text
    • https://rivatekat.weebly.com/uploads/1/3/4/6/134626126/8236787.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485943/normal_5fbb928de29f0.pdfIn PDF document text
    • https://pesimavadedeto.weebly.com/uploads/1/3/4/7/134729205/vilipasusovejug-lerudesiw-nobojijiniruga-dumikeziwalumak.pdfIn PDF document text
    • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/9512461.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3832efde-a071-4e1c-8ae0-375308047492/the_cheetah_atlanta_covid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ca2fdb1-16ba-4242-9ae9-213ac4081477/judgement_social_link_persona_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/735d7621-335e-41e8-bd0e-2e5c5c57a90f/princess_beata_star_trek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95bfccc3-d472-41bd-a8a9-b7844693d842/43563974912.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7d76d90-a57d-431b-a3de-81f07a2a3828/7383699455.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac475039-7e17-4633-9aaf-fdff10c1fb5c/16548277152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aa0ce5a-2d57-47fa-b1f9-44341964cee7/56858185911.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e04fbbca-63c2-4f02-90d7-a3c69aef004e/5813795932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3d0fd48-a3aa-4815-8c57-1fe0d8af1d00/lawn_boy_owners_manual.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_off0000b7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7DF 5576 bytes
SHA-256: 728d52791b7399f4192ff3cbad7ebccb4c93cb06ba0be65564f4ff8029758b18
font_01_sfnt_off0000cabd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCABD 9972 bytes
SHA-256: 3378f64d8a11af1002b5e5b06f3ae596be5d116cac8994f5e33bc704e631272e

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