Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7cafbb494337699…

MALICIOUS

PDF

52.3 KB Created: 2020-08-02 09:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b6142013398a4e44306f6eccdac2625 SHA-1: 6d2a12b8ba60f296a4fb14d7b4c8aaec7e38f6a8 SHA-256: d7cafbb494337699f8a59a34a7006380e72961515e71009b00e6be630c99e83c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.com/pify?keyword=x+art+girls', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect users to potentially malicious content.

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=x+art+girls
    • http://files.registry20.org/uploads/1/3/2/6/132695360/8089703.pdf
    • http://files.foschia.ca/uploads/1/3/1/6/131607010/getip.pdf
    • http://files.hspvanhs.org/uploads/1/3/2/6/132683001/829530.pdf
    • https://cdn.shopify.com/s/files/1/0433/5173/6471/files/muvamax.pdf
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/jiwituz.pdf
    • https://cdn.shopify.com/s/files/1/0438/3748/9309/files/7779114028.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4198/files/kijupevejun.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/kevunufimoxorogidulupar.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6349/files/8520804823.pdf
    • https://cdn.shopify.com/s/files/1/0430/9401/6157/files/futomovite.pdf
    • https://cdn.shopify.com/s/files/1/0436/4173/3273/files/xumanam.pdf
    • https://cdn.shopify.com/s/files/1/0440/7967/7590/files/wevijanowafagubamo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9171/3447/files/tanisupumopig.pdf
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/91601080282.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/85575229541.pdf
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/40214442632.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/dojov.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_off0000926f.bin
80a437325773944ece1df6d40fc07ad39df1788cbbbb52ce761c9e2c0d687b74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x926F 4828 bytes
font_01_sfnt_off0000a2e3.bin
d7efa7cf2ec10dd7ea529eae630c76b8ccae15f880ced6ddbc3274da57fd442a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E3 9820 bytes

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