Malicious PDF — malware analysis report

Static analysis result for SHA-256 d167b62c1a91858d…

MALICIOUS

PDF

40.6 KB Created: 2020-11-06 16:27:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: ff6c1466f9a850f627900b4288244e88 SHA-1: 360717294aa7384e25dd85fdf730e1e2dea6b6cb SHA-256: d167b62c1a91858dc6cb4fdb2bb230af83207a15355eec1e9e55ae8601995339
194 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.
  • 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.
  • 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://traffmen.ru/123?keyword=roadkill+cafe+alabama In PDF document text
    • https://bilewobadazape.weebly.com/uploads/1/3/2/6/132695578/7696805.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386597/normal_5f982e46b31f7.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/kosipefojaw/pusubegebolewutip.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/77304811483.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29d999e7-8ea1-4df1-b0da-54a91fbe11ac/26750932611.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/60232787958.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/ice_hockey_games_sports_heads.pdfIn PDF document text
    • https://manetomimexa.files.wordpress.com/2020/11/68091325827.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b89b359-a34e-4872-b9af-08efa462d745/zazopukuzunixonorewepazo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ff01c1c-d5b9-4e5a-a33f-186727f2614c/luzafi.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_off00005f06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F06 5104 bytes
SHA-256: 734b4777209966badd256599129513af899e672189c216808198295c11eba799
font_01_sfnt_off00007066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7066 10784 bytes
SHA-256: 3fd2b4e67f2112721604362177b874ad3534765bdf2d216080341521af9745b6

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