Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c4ac1a05af962a…

MALICIOUS

PDF

45.3 KB Created: 2020-08-17 02:02:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e7763952e5f71c215621553af779405 SHA-1: f26e661e5ef78488a0970927fd215aa047ab99f8 SHA-256: e0c4ac1a05af962aeface418b156df259b05006abdc9cec025098d8022be4169
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=fallout+3+goat+best+answers', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a strategy to obscure the malicious destination and potentially leverage benign-looking domains for distribution.

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=fallout+3+goat+best+answers
    • http://files.martinhartfilms.com/uploads/1/3/1/6/131636689/9521329.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84712881745.pdf
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/digujeluwuniwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4693/6482/files/werinoxanumuwenavinadok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/guwotexanamegajujubip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95909873105.pdf
    • https://cdn.shopify.com/s/files/1/0435/8658/4733/files/27091360556.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3766/files/punititom.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/1997/files/xuxokegokumuwon.pdf
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/blouse_cutting_stitching_in_tamil_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/44368745507.pdf
    • https://cdn.shopify.com/s/files/1/0437/6307/3181/files/desi_desi_na_bolya_kar_song.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_off000072f9.bin
14b65a9fae54e394159c0a94648e1c5672b468bf21738eef5be1a6c718d3e502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F9 5204 bytes
font_01_sfnt_off000084cd.bin
ca48bfb2de4fae41a3822ea7d45cd5746ac12a5e8db9c4b9700ddb725fc401ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84CD 10988 bytes

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