Malicious PDF — malware analysis report

Static analysis result for SHA-256 d29d139553f64873…

MALICIOUS

PDF

47.4 KB Created: 2020-08-04 01:58:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82124b9013cde78573fc0374c5c7b816 SHA-1: 485f0de41fc6ab1bfd16dbb49954eba55b6ca415 SHA-256: d29d139553f64873740594ccce71acfe74b45b6dbb6bdcfbdeb81f971a5b89ae
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious URL, 'https://ttraff.ru/pify?keyword=ballarat+property+group+rental+application+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a rental application, suggesting a social engineering lure to encourage users to click the malicious link.

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.ru/pify?keyword=ballarat+property+group+rental+application+pdf
    • http://files.everydayfreedom.co.uk/uploads/1/3/0/7/130775537/kezedumoratu-xopojusiga-zagegabi-kazegobadijun.pdf
    • http://files.thedirtywheel.com/uploads/1/3/1/3/131381518/3373777.pdf
    • http://files.2godbtheglory.org/uploads/1/3/2/8/132815359/witulidenan.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/54589499133.pdf
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/manovedonigapire.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/varotoxurakelosuburuvu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/74862227974.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/vuduposodadipe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/josobepemonowewuguxarabup.pdf
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/6333948721.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/34711578681.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9439/files/34253076905.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdf
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/routing_protocols_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0432/2993/7832/files/rumav.pdf
    • https://cdn.shopify.com/s/files/1/0431/0433/8074/files/most_valuable_playboy_magazines.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_off00007937.bin
29c835406b3cacf06c67139727ab4dbbe40242376ecb97b8d130a76a36a312f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 5296 bytes
font_01_sfnt_off00008b5c.bin
b7e298537bfee3ed17670a85c30c6d169170ffe6b469bbf1b010a3646c661dd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5C 10868 bytes

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