Malicious PDF — malware analysis report

Static analysis result for SHA-256 c76fdfa2a86ebeab…

MALICIOUS

PDF

46.1 KB Created: 2020-08-24 09:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d6031b2127381bb4833974708a36393 SHA-1: bc6a908c94bfb99b1d2aa6352a1b50cad92be987 SHA-256: c76fdfa2a86ebeabf7949219ffb108b146faf0de3e123618289652a1b99816ad
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=all+in+one+toolbox+for+pc'. This indicates a social engineering attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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=all+in+one+toolbox+for+pc
    • http://files.rojasirvin.com/uploads/1/3/1/4/131411542/418343.pdf
    • https://cdn.shopify.com/s/files/1/0432/1184/9890/files/jelazonowozalorajisux.pdf
    • https://cdn.shopify.com/s/files/1/0437/8935/3120/files/tokyo_criteria_cholecystitis.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/26354843400.pdf
    • https://cdn.shopify.com/s/files/1/0438/8893/5067/files/33675910756.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/algerieinfo_journaux.pdf
    • https://cdn.shopify.com/s/files/1/0439/1570/6523/files/najezesikiviseti.pdf
    • https://cdn.shopify.com/s/files/1/0428/1742/1479/files/59944988212.pdf
    • https://cdn.shopify.com/s/files/1/0440/6388/3429/files/panalutigolifobibape.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/crafting_and_building_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/4997/5961/files/benny_and_joon_imdb_parents_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062a1.bin
9dd3dc94f17b643077972b607a4f3cb82ab0b03c32edb3bbefa1dec296882ef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A1 4816 bytes
font_01_sfnt_off00007319.bin
bb18ed76f19727f811c2abb132feb255baacf7a19233361d461c2f2eda2a9816		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7319 10420 bytes
font_02_sfnt_off000096f1.bin
e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96F1 16092 bytes

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