Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be275f9e95b1558…

MALICIOUS

PDF

58.6 KB Created: 2020-08-08 01:14:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d0d44b6b9427386e9acdcf33cb8ae77 SHA-1: 00148e5c8c347b674d510f9f9824da1d8cf681a5 SHA-256: 1be275f9e95b1558e45f1c1378de706e3e13a246913b9e32bcea158a600b83f6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Magento 2 tutorial pdf free download' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The primary malicious URL is https://ttraff.cc/wb?keyword=magento%202%20tutorial%20pdf%20free%20download, which is likely used to redirect users to a further malicious destination.

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/wb?keyword=magento%202%20tutorial%20pdf%20free%20download
    • http://files.pittsburghighschoolband.org/uploads/1/3/0/7/130739726/mafitovinotiluba.pdf
    • http://files.ccsasoccer.org/uploads/1/3/1/8/131871556/9124699.pdf
    • http://files.joeksmith.com/uploads/1/3/1/4/131453028/7c68567b.pdf
    • http://files.painting.zone/uploads/1/3/1/8/131856166/xupoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kividerinogofigizunewif.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/23682288097.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/98057865301.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/57162062633.pdf
    • https://cdn.shopify.com/s/files/1/0435/1560/9243/files/90739160235.pdf
    • https://cdn.shopify.com/s/files/1/0432/2322/0392/files/47326682218.pdf
    • https://cdn.shopify.com/s/files/1/0438/6727/5424/files/c_int_main.pdf
    • https://cdn.shopify.com/s/files/1/0437/8296/3349/files/gotaler.pdf
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/roblox_asset_downloader.pdf
    • https://cdn.shopify.com/s/files/1/0432/4786/1928/files/27833243310.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/71052884609.pdf
    • https://cdn.shopify.com/s/files/1/0439/3733/3406/files/negenizasak.pdf
    • https://cdn.shopify.com/s/files/1/0439/2399/6840/files/nekewudejegog.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_off00009831.bin
fc2380c7d06bad633853b4df5b88ac6599957661ae5ce11a88dffb1aa6e58708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9831 5260 bytes
font_01_sfnt_off0000aa4d.bin
d564082fdfa2086ab1c3e97f63c990dc9ce76226f5e39a2a30dffe61de3318a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA4D 16464 bytes

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