Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca41018d45646e0…

MALICIOUS

PDF

33.6 KB Created: 2020-08-27 21:00:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dff75e7c00305959e50af70bf8d7dd1 SHA-1: 572638a599cd5443959e7feb10a67c5a988c4e3a SHA-256: bca41018d45646e0a3b92a7cb841e6e54f2414758cd6e5a57b6f26e7c0f5abcd
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=maryberry+mod+download'. This indicates a phishing or social engineering attempt to direct users to malicious content. No scripts were extracted, but the presence of numerous links suggests a delivery mechanism for further malicious payloads.

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/pify?keyword=maryberry+mod+download
    • http://bufaniwa.juliacellini.com/uploads/1/3/1/6/131637308/955323.pdf
    • http://files.sidebysideuk.net/uploads/1/3/1/3/131379111/7c1a880230d4d11.pdf
    • http://bekid.messianiclaw.com/uploads/1/3/0/8/130814124/pilegivo.pdf
    • http://files.sharingvideo.greatwebsitebuilder.com/uploads/1/3/1/4/131413678/weridudusipimok.pdf
    • http://jupebofep.pottershouselc.com/uploads/1/3/0/8/130813755/xurisozi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/25851039882.pdf
    • https://cdn.shopify.com/s/files/1/0428/4488/1062/files/job_application_letter_with_resume.pdf
    • https://cdn.shopify.com/s/files/1/0432/6883/3436/files/jemuxozexinolodokuzoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/4678/8501/files/tatimiwet.pdf
    • https://cdn.shopify.com/s/files/1/0437/6179/5229/files/97573078704.pdf
    • https://cdn.shopify.com/s/files/1/0433/1982/0446/files/vamuxizupobudewazexugizo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2523/6121/files/94239858970.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_off00004955.bin
3e1e60c0089d3c3b07a350acadd2f39c105846966bb703bdfa1c2ae280da24cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4955 5132 bytes
font_01_sfnt_off00005acd.bin
271633f5fa8cd65341bce9d9fe9ccda50b2ad541e53f7ecd7a3ce796ef1f6609		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACD 9140 bytes

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