Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e05a475c605092b…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 11:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e8f590de640f55496470f10b437791c SHA-1: df886204ff150d93b39b4e4846fca1ad54af13e5 SHA-256: 3e05a475c605092b9ef43efb84f5b593d2605a3a2465591cc667e8cd46c1bf60
120 Risk Score

Malware Insights

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

The PDF document contains a mass external link farm, with one prominent link leading to a known malicious redirector. The document body, though heavily obfuscated, contains the text "Renault blaupunkt radio manual" and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is https://ttraff.ru/pify?keyword=renault+blaupunkt+radio+manual, which is likely used to redirect the user to a further malicious destination.

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=renault+blaupunkt+radio+manual
    • http://files.vikkaszone.com/uploads/1/3/2/6/132682471/753471.pdf
    • http://files.amkorkaratec.com/uploads/1/3/1/8/131871642/96e63faaa62.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/33297349070.pdf
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/tixonewinomaditul.pdf
    • https://cdn.shopify.com/s/files/1/0430/8058/1274/files/kidobeba.pdf
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/importance_of_vehicle_tracking_system.pdf
    • https://cdn.shopify.com/s/files/1/0434/9352/3618/files/1539374479.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/38014781755.pdf
    • https://cdn.shopify.com/s/files/1/0431/5919/1706/files/vujofejojanuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/3095/4655/files/bach_badinerie_flute.pdf
    • https://cdn.shopify.com/s/files/1/0441/1247/8360/files/99645137264.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1813/files/tutoriel_arcgis_10._5.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_off000067ea.bin
377306a1fa608b30602f9430c9e8c434782c861d354911f7cdd8e4e16a3ac286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67EA 5140 bytes
font_01_sfnt_off00007947.bin
42e69ba4d8da50ab7488d4a2d234c25521cf2c6d7bea35ba2c0d753b5301d043		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7947 10676 bytes

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