Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e765d9e41df4bfa…

MALICIOUS

PDF

33.8 KB Created: 2020-10-05 19:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 00801471c03716a217c7866506a418b4 SHA-1: ece97528550871b897a191eedf0264c5ab5a3444 SHA-256: 2e765d9e41df4bfa977d695124be0684e5b213a9d029fe39bc99dd99cdeab475
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the PDF is designed to lure users into clicking malicious links, likely for phishing or to download further malware.

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/strik?keyword=solid+state+physics+ashcroft+solutio In PDF document text
    • http://files.heathermclaurinart.com/uploads/1/3/1/6/131606487/33e8874.pdfIn PDF document text
    • http://xusojirim.fyldecoastrunners.com/uploads/1/3/1/3/131382470/4528459.pdfIn PDF document text
    • http://zisedef.hypefit.co.uk/uploads/1/3/2/8/132816066/5e76ded.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/d42219e9-2f5a-4bd9-8122-de2b23297480/61437065680.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37cbf557-ed10-4a3f-89fb-b41f1091ec12/tuvumipureva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e10b376-4553-420b-81ea-422f2e6ebf7e/27125016355.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5d7ddcd-b5cd-4792-894e-21585a6bcab6/17707635179.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1c444aa-5803-4178-983d-4e5408f829fc/24238295787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/8907/8693/files/how_do_you_move_your_body_like_a_cyclone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8017/9107/files/wida_practice_test_writing_drc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/5872/3747/files/barry_law_school_acceptance_rate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8934/7228/files/85250600163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5944/4889/files/game_of_thrones_conquest_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8024/0290/files/unmountable_boot_volume_windows_10_hp_laptop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/sikil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/8177/2445/files/daxefagigobibateguwawum.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_off0000464e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x464E 5448 bytes
SHA-256: c14d9290020b2775a7a1cadf00bba27dd5a5deeb043d361d3cda3207ba85c472
font_01_sfnt_off000058d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58D6 9236 bytes
SHA-256: b8452f22ac907d8938739cefacf806bcb77a99a57c00b1a00e3e7f436e8cf5e0

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