Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d10feddb09c10fe…

MALICIOUS

PDF

41.1 KB Created: 2020-10-31 20:27:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4a4bf8b5912a3aab6dafa9b8ca6cf682 SHA-1: b07fe4a8973010c97f06a35ad3f938046a4009d0 SHA-256: 2d10feddb09c10fe32ab1c8de737f7370579a518203c5619e4de6a10d42e4640
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ttraff.link/123?keyword=overwatch+free+weekend+2020 In PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/dozusawofip_gadekinukekiwop.pdfIn PDF document text
    • https://kifenefaru.weebly.com/uploads/1/3/4/3/134327755/1836977.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/kolerir.pdfIn PDF document text
    • https://tupipukevoluda.weebly.com/uploads/1/3/4/0/134041298/kajuzefuri.pdfIn PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/5691425.pdfIn PDF document text
    • https://kafasomawupi.weebly.com/uploads/1/3/0/7/130775431/wafoxofalotulo.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/1/0266/9445/1387/files/used_macbook_pro_buyers_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0515/5227/files/vikulajaguxegix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/7553/3461/files/king_andrew_the_first_cartoon_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8962/files/merchant_of_venice_file.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98ed1dfd-671e-4015-b79e-2cfa6b395f79/66856530602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5509/5201/files/naacp_youth_council_chapel_hill.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_off00005f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2D 5416 bytes
SHA-256: 61fe920b0fcfc08be2ec831105807956e427f3c2ae16d94e0b69732b0d6c7c8e
font_01_sfnt_off000071ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AC 11308 bytes
SHA-256: 5c711b72ce4067e176e2026daa5ec67b61b8e2fa49dee271ebb4ea60669cde79

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