Malicious PDF — malware analysis report

Static analysis result for SHA-256 d74cd80d3cc968af…

MALICIOUS

PDF

43.6 KB Created: 2020-08-30 17:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e3fdf31093d6aa879f1b00e71af3d75 SHA-1: ffc46db53311b26fee7d998c58344695866454ac SHA-256: d74cd80d3cc968af483267549033e9d20fcbdb1c8eedfc58bd76233f07d9472d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM suggests a large number of external PDF links, many of which are benign but serve to obscure the malicious intent. The primary malicious URL is https://ttraff.cc/wix?keyword=yu+gi+oh+duelist+of+the+roses+pcsx2, which is likely used to redirect users to a phishing or malware download site. The document body contains garbled text but also includes the malicious URL and several benign PDF links.

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/wix?keyword=yu+gi+oh+duelist+of+the+roses+pcsx2
    • https://static.usrfiles.com/ugd/e2b09b_9fb5dc4b4d3f466eb39b90af23970f9d.pdf
    • https://static.usrfiles.com/ugd/f65518_02795a322d4449e7b930e1a0d4372196.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f4f84a6a05a415fadeb236f94690782.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f5df364077b4c2c9bb7c1e71aeafdba.pdf
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/sawogeteserixugunupib.pdf
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/rebijemevufelaguvomeneted.pdf
    • https://cdn.shopify.com/s/files/1/0436/2030/3006/files/31945565289.pdf
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/muzamotanobadabuve.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/48249658018.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/22943012022.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_off00005149.bin
ce95535919567a1c5cfed36a8bf9e1c210caeb904d398db7496a35e9ed7965bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5149 7604 bytes
font_01_sfnt_off00006b14.bin
0c15ba64ca43951d149e7061718485fdea3276fcb245c370870b5f2f57c18cca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B14 5368 bytes
font_02_sfnt_off00007d5b.bin
c1878036b25bab0fa9b89e84e8212677fd7c878feaca8e68fbf0c62237a11df7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5B 10564 bytes

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