Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e3c546090340d2f…

MALICIOUS

PDF

63.2 KB Created: 2020-07-30 21:40:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9161ccf37d7bfa68894c351137ccb368 SHA-1: ac71cf3bfe9c0b8e0f86c99b125d626cafb421f6 SHA-256: 9e3c546090340d2f5833ea6eb115971d0b636b33fcf8710ac6914bf382c2eb2c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic was triggered, suggesting the document is designed to host numerous external links. The embedded URL in the document body further supports the redirection attack pattern.

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=self+esteem+definition+psychology+pdf
    • http://files.madeathomequilts.com/uploads/1/3/1/4/131407539/4557289.pdf
    • http://files.cozyguesthouses.com/uploads/1/3/1/3/131382030/dunugegupox.pdf
    • http://files.comchart.com/uploads/1/3/1/3/131381078/3ac455.pdf
    • https://cdn.shopify.com/s/files/1/0432/9888/1704/files/33022102457.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/nipomopekenazadumimiwim.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/tivixika.pdf
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/14250127460.pdf
    • https://cdn.shopify.com/s/files/1/0437/5789/5841/files/vowawinodopebulekuxoxuro.pdf
    • https://cdn.shopify.com/s/files/1/0433/7411/7015/files/dinulapikir.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/wixawobeziripunomejil.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lobusine.pdf
    • https://cdn.shopify.com/s/files/1/0433/3246/8904/files/zewavujolada.pdf
    • https://cdn.shopify.com/s/files/1/0436/2056/5156/files/namejizakapiwixol.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_off0000b994.bin
d10dd84bc0fccd749372d7ceac43fc37626c13c8c2c4f68e1aa585c81663833f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB994 5256 bytes
font_01_sfnt_off0000cb58.bin
4595bb468aeec733c6570081630de57e912936e62ce40f6390c62d4c6dd06652		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB58 10532 bytes

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