Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f83d36dfd866fa…

MALICIOUS

PDF

42.4 KB Created: 2020-08-30 06:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46df1e098f901c654f132152e1398198 SHA-1: 29730c4b72f76760ac02f3a541cab3afae842834 SHA-256: e6f83d36dfd866fae98255021d455012f28b7f672a1aa7dfa5f9a329d1095306
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as product information, which is a common lure for phishing or malware delivery. The document body, though heavily corrupted, contains the URL https://ttraff.cc/wix?keyword=welbilt+toaster+oven+rotisserie+grid, which is flagged as a malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to benign content but serve to obscure the malicious intent.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=welbilt+toaster+oven+rotisserie+grid
    • https://static.usrfiles.com/ugd/26481d_1c16ef1b81cc45229c28df4bfeeae144.pdf
    • https://static.usrfiles.com/ugd/de3d83_3fd15d2d79344f6a9118faf8a6332660.pdf
    • https://static.usrfiles.com/ugd/405339_ede7fdc7d1d84cf8b80bc14d3aef5791.pdf
    • https://static.usrfiles.com/ugd/b8c837_290bc459e8dc47b8aea4d3692838abe0.pdf
    • https://cdn.shopify.com/s/files/1/0434/7982/6584/files/29027294321.pdf
    • https://static.usrfiles.com/ugd/b8c837_2de0a9dc2c264526926d7851542ac9a4.pdf
    • https://static.usrfiles.com/ugd/822ecd_f0435ff4797a4672b7d8044415484143.pdf
    • https://static.usrfiles.com/ugd/b8c837_15391b1509634ac7be1bed88aeae6e23.pdf
    • https://static.usrfiles.com/ugd/93c935_b7b3cbf7d0244521a2128ea6384505a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_397e5adb5d71462683c20ca01294e691.pdf
    • https://static.usrfiles.com/ugd/a1fb72_143a216fa6ec404186ca33f277bac9b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d5da69e4631440b58f7fcf8c8e94b7ee.pdf
    • https://static.usrfiles.com/ugd/b8c837_b03186a7889a48b0953badab8c95f49f.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_off00005fe8.bin
58ef8b4e0c57ac99b5ad09ff610bf82b34b8006bd20bbd7330dca16507c538ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE8 5208 bytes
font_01_sfnt_off000071b0.bin
e7325469bd92d542e4afcbcdd0d7ddb37f73baad55d2caa1f82687af9b82de5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71B0 13328 bytes

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