Malicious PDF — malware analysis report

Static analysis result for SHA-256 980c94a83104226f…

MALICIOUS

PDF

42.7 KB Created: 2020-08-25 04:45:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0082e5c2983301fbcec21429a006efb SHA-1: b4acc7fd44463495b258f8958ff599e2b1583235 SHA-256: 980c94a83104226fbc750aac3a4f8d53f5abe38ae73d80eb6e2cb7058ae6cfd8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=avenged+sevenfold+almost+easy+video'. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent, likely to redirect users to a malicious site for further compromise.

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.cc/pify?keyword=avenged+sevenfold+almost+easy+video
    • http://kaxisek.qubainitiative.org/uploads/1/3/0/7/130776031/xedadon.pdf
    • https://cdn.shopify.com/s/files/1/0430/1111/3123/files/kasofoxelojuxaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/xebujanuwinenomo.pdf
    • https://cdn.shopify.com/s/files/1/0458/1412/0614/files/tujolunalozijajux.pdf
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/chess_game_videos_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8591/2477/files/29659956954.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8994/files/16923081329.pdf
    • https://cdn.shopify.com/s/files/1/0429/2168/9254/files/98138272827.pdf
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/how_to_get_wifi_on_linux_mint.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/bocio_multinodular_2020.pdf
    • https://cdn.shopify.com/s/files/1/0436/2331/7662/files/dutubekerivasedulare.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0422/files/sodexo_application.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/kapawena.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_off00006a49.bin
65c30ce7a6732a8deec4cd11b1282092d32f0abdb44d77c399e1316e56b59fc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A49 5280 bytes
font_01_sfnt_off00007c42.bin
8749f481be06162204e284d92a8cacbc84488a858b2a932f8a2a5fee93a8a640		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C42 9940 bytes

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