Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a06014598e26cdf…

MALICIOUS

PDF

43.3 KB Created: 2020-11-02 13:57:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1f6751fdd23446172ee1db7b65deda7c SHA-1: dd0973ee5dffd2626c15523ab7fd9c04d9dba881 SHA-256: 2a06014598e26cdfc0305097e3d9a8cea8de782f11b3267c58e60c0c34caee47
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://cctraff.ru/123?keyword=xilinx+jesd+sync In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/kasodopizafazakoxuk.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/1/0440/7744/9366/files/teori_motivasi_belajar_menurut_para_ahli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2103/6452/files/taronaxapebilizutadonep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4042/3091/files/executive_information_system_in_mis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/8130/7560/files/89162316510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/2170/2596/files/goxivedutiluratilod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7462/3928/files/jerozewewutumigedelatefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/9958/6205/files/chemistry_solutions_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1662910f-39c4-49e5-a925-fc2251209ad6/removing_roms_from_retropie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/6384/1446/files/lenovo_ideatab_s6000-h_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8394/8736/files/poor_teacher_evaluation_comments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9153/5020/files/positive_attitude_at_work.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0190b2b-6cce-434c-8216-7b954e1fa630/37766851304.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_off00006a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A16 4848 bytes
SHA-256: 18db4828a36cf3ac9bed98379526ad64a8b5ca5eb81aee7e52ead66b85e45ad2
font_01_sfnt_off00007ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB9 11296 bytes
SHA-256: 1e6f6349b164b2aaee9717a7768bc3952cd8f47808f9893c255a9dca38f0ad5e

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