Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee596370c45f95cb…

MALICIOUS

PDF

48.0 KB Created: 2020-08-05 15:51:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d5dc6365585c5c07d5ef1e31a9a2942 SHA-1: 6a78e0dd673258db844934e6d78cc4f1f5c58481 SHA-256: ee596370c45f95cbe599a8892be1a0ca2b529ccdf1a01bf10ae956723e05ffdc
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious domain, disguised as a service manual. This is supported by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further stages of an attack. The document body contains text related to a '2006 honda civic si service manual pdf', which serves as the lure.

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/wb?keyword=2006%20honda%20civic%20si%20service%20manual%20pdf
    • http://files.gabrielesmist.com/uploads/1/3/0/7/130738850/refekosepokezukupaf.pdf
    • http://files.windmillers.net/uploads/1/3/0/7/130775196/zejedebosa-suxerez-ziribeb.pdf
    • http://files.cninc.org/uploads/1/3/1/6/131606046/61010.pdf
    • http://files.petrocellicaffe.com/uploads/1/3/1/4/131410812/2709312.pdf
    • https://cdn.shopify.com/s/files/1/0432/4913/9880/files/werazokevugozinunafiroxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/3841/6801/files/zowupafimodedunaxof.pdf
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/53085466963.pdf
    • https://cdn.shopify.com/s/files/1/0433/4393/7690/files/74569412111.pdf
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/27213017005.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/42838877190.pdf
    • https://cdn.shopify.com/s/files/1/0437/3184/5271/files/authorize_net_test_credit_card_numbers.pdf
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/fudikadufegotomexibakap.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/bomumugunepapu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/27737875589.pdf
    • https://cdn.shopify.com/s/files/1/0430/7746/8311/files/71920793896.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_off00006e90.bin
bcb9b28a29d79d225be2097adbbf2841eee1af9ffffb7cb256d34d9dae388b64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E90 5588 bytes
font_01_sfnt_off0000814e.bin
55466fde842695caa5e7c18689488b5702e315702540d2d98e51284d4326d72f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x814E 10440 bytes
font_02_sfnt_off0000a4fd.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4FD 4324 bytes

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