Malicious PDF — malware analysis report

Static analysis result for SHA-256 302ac8b409f3b10e…

MALICIOUS

PDF

45.0 KB Created: 2020-08-18 13:31:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c129ca9f3d4d695e28194ca3a797d85d SHA-1: 3aef3287f024bef096557e1eead59111baefd65d SHA-256: 302ac8b409f3b10ecb2561f28040b9959a7b272e7f455f95b7095737b9246668
150 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, identified as a link farm. One of these links, 'https://ttraff.com/pify?keyword=bollywood+hd+movie++website+name+list', is flagged as a malicious redirector. The document body, though heavily corrupted, appears to contain text related to movie websites, suggesting a lure to entice users to click the malicious link. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=bollywood+hd+movie++website+name+list
    • http://files.theventure.blog/uploads/1/3/1/4/131483083/pezim_lugosudofojobo_xidiju_tamov.pdf
    • http://files.lucaswkrueger.com/uploads/1/3/2/6/132682042/nulelutopesaje.pdf
    • http://files.eliseheaven.com/uploads/1/3/1/0/131070009/rofanimalop.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/35363269857.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/74355170056.pdf
    • https://cdn.shopify.com/s/files/1/0449/7460/4456/files/spanish_bilingual_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/vogetase.pdf
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/36675237929.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/fepirepoleraripe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/ropewizafe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/1706233177.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/3409337854.pdf
    • https://cdn.shopify.com/s/files/1/0429/5426/0643/files/futujurefaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6725/2641/files/xonen.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_off0000718f.bin
000c7c99045fd3d4b73812947bcfd099ccb85f025b099d239789a8b911108ae3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x718F 5412 bytes
font_01_sfnt_off000083ea.bin
d1e575946a2939c527819f444b0afd0c59094329facffc0a68f75b1551842ec8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83EA 10360 bytes

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