Malicious PDF — malware analysis report

Static analysis result for SHA-256 25905f53a1f914ea…

MALICIOUS

PDF

37.8 KB Created: 2020-09-04 14:54:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1151ff4a13d65f6113404d0ec6956fb SHA-1: 1c3ec568032dfb374d795a4d40e7ea71690134eb SHA-256: 25905f53a1f914eabc3f885ceb13dc2f913882aa4d9fb7a738d16b9e7c1a6f5a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on Shopify, constituting a link farm. One of these links, however, redirects to 'ttraff.me', which is flagged as a malicious redirector. This suggests a phishing or malware distribution attempt, leveraging a seemingly benign host to mask the malicious destination. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact payload or intent beyond the malicious redirect.

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.
  • 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.me/wix?keyword=bracket+ft+timaya+celebrate+video
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/76921193981.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/any_books_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7106/8577/files/cavidades_corporales.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0134/files/negaforufajojanipavawiza.pdf
    • https://cdn.shopify.com/s/files/1/0431/2684/9697/files/vaxel.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/artificial_neural_network_using_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0431/0853/2380/files/ibps_po_call_letter.pdf
    • https://cdn.shopify.com/s/files/1/0440/8823/0053/files/pitisonojifomowin.pdf
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/59857152894.pdf
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/75826951708.pdf
    • https://cdn.shopify.com/s/files/1/0432/5916/6888/files/6500818670.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/34962986306.pdf
    • https://cdn.shopify.com/s/files/1/0436/7073/2950/files/wobibiburudamofidotipovuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/extrema_of_a_function_worksheet.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_off000054a6.bin
03e811b1dab103543dc10a9db253949ab11889b7ab178171bae0336ad9cbe784		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54A6 5404 bytes
font_01_sfnt_off00006708.bin
5eea46deee892d5f4c760c926482370854378cf19e676aad8bd1c8a08d2247f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6708 10288 bytes

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