Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc4e34d95651ce5…

MALICIOUS

PDF

38.8 KB Created: 2020-08-31 19:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46760e2920eac9f77cae1114c42a6e1b SHA-1: 3e98c3dea76661d3497cc5bd2e4073e370e1fd6d SHA-256: 3bc4e34d95651ce537f927747e1093b7bd3c7a3d55917d76f19a669a27cba521
128 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 malicious infrastructure. It also contains a PDF_SEO_LINK_FARM heuristic, suggesting it's part of a link farm. The embedded URL 'https://ttraff.cc/wix?keyword=bleacher+report+live+app+xbox' is the primary indicator of malicious intent, likely leading to further compromise. The document body, though heavily obfuscated, contains this URL and appears to be a lure.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bleacher+report+live+app+xbox
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/pogipigujavarenukamopi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/st._augustine_city_of_god.pdf
    • https://cdn.shopify.com/s/files/1/0432/0726/2370/files/daguwarewagaberevinapapup.pdf
    • https://cdn.shopify.com/s/files/1/0434/5354/6656/files/diseases_caused_by_staphylococcus_aureus.pdf
    • https://cdn.shopify.com/s/files/1/0427/9789/1751/files/dakenavumejulusudot.pdf
    • https://cdn.shopify.com/s/files/1/0434/6717/8134/files/local_calling_guide_australia.pdf
    • https://static.usrfiles.com/ugd/f55bec_64fe3c0584fb40838bc6f53a680e3e85.pdf
    • https://static.usrfiles.com/ugd/89363e_1871e638a18d48e987a132baf6b1143f.pdf
    • https://cdn.shopify.com/s/files/1/0432/9553/9368/files/indefinite_pronoun_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/jimedowaduzaladuji.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/76429791654.pdf
    • https://cdn.shopify.com/s/files/1/0434/4591/1709/files/sotifujuvet.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_off00005b1e.bin
0c4f85d605aa2d4a2c87ab4feda924fe5bb1ebe2888f57d7ed082d4a312581f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1E 5160 bytes
font_01_sfnt_off00006ca6.bin
e686795bf19f4b22697e002f133709cca20d2e920cabd9855ad7a9c636eccb7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA6 9924 bytes

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