Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a05c4d00ffcee65…

MALICIOUS

PDF

68.9 KB Created: 2020-08-26 06:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95829f7e1e91d398b8b12a8de1994d4a SHA-1: b5954aa40e503eaad2bd478fb5a4d76396fc619d SHA-256: 5a05c4d00ffcee6530a7b58e640dcb663c16fb80395630fd3846594fe82754c2
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=moteur+%25C3%25A0+aimant+permanent', which is identified as a malicious redirector. This suggests the PDF's primary purpose is to direct users to malicious sites.

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.com/pify?keyword=moteur+%25C3%25A0+aimant+permanent
    • http://files.megpeterson.com/uploads/1/3/0/7/130740530/lufudamolo.pdf
    • http://files.deanacio.us/uploads/1/3/1/4/131453715/gaxujepabomir_tamikukare_jepebusopo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2403/9592/files/lefam.pdf
    • https://cdn.shopify.com/s/files/1/0430/9545/7946/files/dukajixux.pdf
    • https://cdn.shopify.com/s/files/1/0433/7470/6853/files/autodesk_inventor_tutorials_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/xazosewinilokowokibigexi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/29604047279.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/34534584448.pdf
    • https://cdn.shopify.com/s/files/1/0435/7911/3635/files/diccionario_de_administracion_publica_colombiana.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8d8.bin
fca08b0904771f0c44a36f67d71e4af403d62ad24c05a6107966307a932a9b49		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8D8 4992 bytes
font_01_sfnt_off0000c936.bin
db8cceeadf8e3b156826c0065d8887b60cf0622faf585cd3639332ee0f37cd6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC936 12236 bytes
font_02_sfnt_off0000efe4.bin
379b758e65e9b37656e8de387f14e1ed5651a10e4933af748d58739bc3359644		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE4 16152 bytes

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