Malicious PDF — malware analysis report

Static analysis result for SHA-256 45fc419435dba64b…

MALICIOUS

PDF

43.5 KB Created: 2020-08-24 04:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57c75be9b632176d819762899e4dc5a5 SHA-1: dc8ccafa6b87355ee1dcde3c513f5c033feb6cde SHA-256: 45fc419435dba64b7d953cac02240919711f6283eea12c3cb3fa383a75c731e2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=personal+interview+skills+pdf', is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDFs, suggesting a link farm or redirection tactic.

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.
  • 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.
  • 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.com/pify?keyword=personal+interview+skills+pdf
    • http://files.bodywisebourne.com/uploads/1/3/0/8/130813888/vitenasura.pdf
    • http://rasup.wisconsinwaterlaw.com/uploads/1/3/1/4/131409236/lijugamukuluduwaw.pdf
    • https://cdn.shopify.com/s/files/1/0438/5275/9200/files/jungle_birds_sounds.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0094/files/vidmate_apps_chahiye_karna_hai.pdf
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/14814514130.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/94317275454.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/15907110019.pdf
    • https://cdn.shopify.com/s/files/1/0432/9888/1704/files/60043481589.pdf
    • https://cdn.shopify.com/s/files/1/0435/8494/6333/files/93585390192.pdf
    • https://cdn.shopify.com/s/files/1/0433/2116/3941/files/basic_instinct_movie_in_tamilrockers.pdf
    • https://cdn.shopify.com/s/files/1/0436/4104/5145/files/5th_grade_itbs_math_practice.pdf
    • https://cdn.shopify.com/s/files/1/0429/1565/9942/files/biology_101_exam.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dda.bin
cdaebcf4a27bb17dac16a4967fb769a4459f215f7ac15a0d97a4142190e0a3bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDA 5252 bytes
font_01_sfnt_off00007fd5.bin
a5f56f5e090438f6c1851759f8e0dc2212676fe193ea629a6cb8121fb524e898		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD5 9900 bytes

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