Malicious PDF — malware analysis report

Static analysis result for SHA-256 d09654b2a10879ad…

MALICIOUS

PDF

47.5 KB Created: 2020-11-08 14:15:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: ead98dec89ea2e7dcd16643a87334b81 SHA-1: 1e3de3bb76d9a5d3290b562282b8785c06a5b46d SHA-256: d09654b2a10879ad60b3bb3ad2225591013b48a584bd0be75e4bd29ecc757b64
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to known malicious redirectors or link farms. The document body, though obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic. The primary goal seems to be directing users to malicious infrastructure.

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://gettraff.ru/aws?keyword=bmw+i3+vs+tesla+model+3 In PDF document text
    • https://labajilawuja.weebly.com/uploads/1/3/1/4/131406369/fidajulejenus.pdfIn PDF document text
    • https://parudebizaju.weebly.com/uploads/1/3/4/0/134096066/pikupes-jujopoliletumo-zajevulil-goxoj.pdfIn PDF document text
    • https://zenojunaguj.weebly.com/uploads/1/3/4/6/134668508/vulolozep-lozalogeluki-menilobaki.pdfIn PDF document text
    • https://nabisipiguges.weebly.com/uploads/1/3/4/4/134432296/buvonegobabani.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/bc10ebe4-d567-49c8-8967-819a8f2a0811/honda_civic_engine_swap_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec514b4c-6af6-4426-a2a1-27a895b72e76/27031888561.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c179e65-f39d-411b-8f65-074d26c2ab7f/51143470253.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/ash_and_anvil.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/22019949731.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef099cc9-a206-4f1f-8050-62e0c7f11e70/90792816657.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffc67302-a9a5-4768-b0ad-bc0dd906e006/16881347421.pdfIn PDF document text
    • https://kiwowet.files.wordpress.com/2020/11/99169404748.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b677979f-4fbe-4d68-afea-1f51cf554998/66052590889.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_off00007a2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2F 5240 bytes
SHA-256: f9db3f201582e741a013a48f91141f530a7e806d600c559e3ba3c8545684e9f1
font_01_sfnt_off00008c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C01 11112 bytes
SHA-256: 02b23d5349e20a06e6c7335320c81dd63268fb8c73c68b51b483f51df8318748

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