Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a3fe60e90c2c20d…

MALICIOUS

PDF

54.4 KB Created: 2020-11-02 19:57:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a1ea457b087b0fb56d5b2b39aeea577 SHA-1: 14243904ebad6b1de527213789d72db627f844fc SHA-256: 0a3fe60e90c2c20dada9fb75f5b0a8dcbe91cd2cf0e5980780189bd5f6c80205
94 Risk Score

Malware Insights

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

The PDF file contains a direct link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely used to redirect the user to a malicious website for phishing or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ggtraff.ru/aws?keyword=newsies+songs+2017
    • https://cdn-cms.f-static.net/uploads/4417998/normal_5f97590446b45.pdf
    • https://cdn-cms.f-static.net/uploads/4391921/normal_5f93057e8f9d2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6681aeee-617c-4a4a-bab4-a0e63cb6cf22/73113713387.pdf
    • https://cdn.shopify.com/s/files/1/0502/4002/8837/files/46494592878.pdf
    • https://cdn.shopify.com/s/files/1/0508/1032/3127/files/76496385861.pdf
    • https://cdn.shopify.com/s/files/1/0266/8000/0706/files/ford_motor_company_business_level_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0268/8611/1405/files/xufufevu.pdf
    • https://s3.amazonaws.com/mejifavo/36772315131.pdf
    • https://cdn.shopify.com/s/files/1/0508/1759/7623/files/40118947912.pdf
    • https://cdn.shopify.com/s/files/1/0497/8071/9765/files/79639437194.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000097b0.bin
b5308ba25f1611008b4cb445ab5497d8b892a3376598cf8125769453f4a01e3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B0 4980 bytes
font_01_sfnt_off0000a8eb.bin
f6385a1d9e35dcd83821698e81e27adadbb9bdd0ece9692c2a1eb0b094960da5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8EB 10620 bytes

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