Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7ea9cc1b6e9321…

MALICIOUS

PDF

56.1 KB Created: 2020-08-12 20:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8030f18c34ca107630281ad620978b02 SHA-1: 07e4fd07278206c449ef51fe14758f3fc9dbf475 SHA-256: 9d7ea9cc1b6e93211306e1cf13d1a51a19d21dc053890e98b00447d785e4062a
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Sigmund Freud the interpretation of dreams pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The primary malicious URL is likely used to redirect users to a phishing page or a malware download site.

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/wb?keyword=sigmund%20freud%20the%20interpretation%20of%20dreams%20pdf
    • http://gawid.yctfashion.com/uploads/1/3/0/8/130814535/ee73f461c0.pdf
    • http://files.fcaky.com/uploads/1/3/1/4/131483719/tibepede.pdf
    • http://files.fishwoodworking.com/uploads/1/3/0/9/130969312/b7de32271d16.pdf
    • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/nuwotapusijasozal.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/historia_de_la_brujera_en_espaa.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/25478018631.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/sitepigejukidijomug.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/17329864826.pdf
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/84392458192.pdf
    • https://cdn.shopify.com/s/files/1/0429/9577/7699/files/gewejaliberigo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2036/9567/files/933641768.pdf
    • https://cdn.shopify.com/s/files/1/0434/8405/3669/files/zogetifuwonuw.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/zulutekigulafubogazi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/nedufeluti.pdf
    • https://cdn.shopify.com/s/files/1/0435/9490/7810/files/tal_dorei_campaign_guide.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_off0000901d.bin
b3897b75f6cc7033c00f7c87bcdc3676568459e1f65ed71172a2ab85c44a08dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x901D 5408 bytes
font_01_sfnt_off0000a24c.bin
7b3dedc4ebbb3b6681a05b7ceaef95b65fc8bea1c6bb5a3f6813c85a1d83a5bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA24C 10152 bytes
font_02_sfnt_off0000c516.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC516 4324 bytes

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