Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89da00564913358…

MALICIOUS

PDF

38.8 KB Created: 2020-07-29 08:41:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dd08ed6f7f6cef5f7ef6a4d078b1cf1 SHA-1: 6babce2bb36329c881b9e9c5c7a6a8763f864124 SHA-256: e89da00564913358f08464b430b73ffc633245bbb480f3add3f4f9535c6d7051
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, many hosted on Shopify. The primary malicious URL is 'https://ttraff.cc/pify?keyword=antrenmanlarla+matematik+geometri+pdf', which likely serves as a lure or initial stage for further malicious activity. The document body is heavily obfuscated and unreadable, providing no further context.

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=antrenmanlarla+matematik+geometri+pdf
    • http://files.northmiresouces.org/uploads/1/3/2/7/132740836/vorikawu-sumewefagusog-sarixo-ludigonorubinug.pdf
    • http://files.oursaviorsdevilslake.org/uploads/1/3/1/1/131163533/5105704.pdf
    • http://files.turtlerecording.com/uploads/1/3/1/4/131437953/zalekosaz.pdf
    • http://files.morganofsharick.com/uploads/1/3/1/4/131453526/b54f16.pdf
    • http://files.auzpexbeauty.com/uploads/1/3/2/7/132740804/ea5e6d9cdf3.pdf
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/91877708521.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/kemokalerosemevogobuwej.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/ludekijidewow.pdf
    • https://cdn.shopify.com/s/files/1/0437/7837/5829/files/pusorixifigunurepanagifu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/jalilajedapofuwomu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/74725823484.pdf
    • https://cdn.shopify.com/s/files/1/0438/1877/8781/files/82212135985.pdf
    • https://cdn.shopify.com/s/files/1/0428/8672/5795/files/74597464958.pdf
    • https://cdn.shopify.com/s/files/1/0433/5671/7206/files/18434318982.pdf
    • https://cdn.shopify.com/s/files/1/0440/6044/2774/files/42368386761.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/41689997529.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_off000056aa.bin
4c96efbfa1acab0ca2c2f81ba72841693e270c3878de13e548771b7e8d998d35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56AA 5024 bytes
font_01_sfnt_off000067a0.bin
ed8ea3fa8b86f65d5c5403e55d4481586032de5fed8e3c72bf36c11356d4e6ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A0 11800 bytes

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