Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c7c5967a930d5d7…

MALICIOUS

PDF

40.0 KB Created: 2020-08-26 10:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47a8c160937313d9b6945f1a21bd39d2 SHA-1: 760777312320db2654c6ad883394661c3037bf9d SHA-256: 2c7c5967a930d5d73f14ec27a34ea47aac45fb1a3c0f9daf81bc2872c719f349
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external resources, which is characteristic of a link farm designed to manipulate search engine results or distribute malicious content. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.club/pify?keyword=yamaha+rx-+v583'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous benign-looking PDF links on Shopify domains indicates an attempt to blend in with legitimate 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.club/pify?keyword=yamaha+rx-+v583
    • http://files.prachisrivastava.com/uploads/1/3/2/6/132695663/sosulawanumisi.pdf
    • http://files.susanaaleixolopes.com/uploads/1/3/1/3/131384679/viduzegetidumi.pdf
    • http://files.allysonparsonsart.com/uploads/1/3/1/4/131454090/bc8dc6d431e.pdf
    • http://files.kasubaworks.com/uploads/1/3/1/4/131483445/mewudenizuguref.pdf
    • http://pagewuza.cbenglish.com/uploads/1/3/0/8/130874679/5377627.pdf
    • https://cdn.shopify.com/s/files/1/0438/6386/7552/files/apc_smart_ups_3000_xl_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/error_code_3_spotify.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/38131638868.pdf
    • https://cdn.shopify.com/s/files/1/0434/0468/9558/files/67611046643.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/lukazelasivefasenabube.pdf
    • https://cdn.shopify.com/s/files/1/0432/2125/4312/files/best_online_editor_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/39759050333.pdf
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/pdf_to_autocad_converter_software_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.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/
    • https://cdn.shopify.com/s/fi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e44.bin
13508b78a7f131210a78fd452203d6a0435f658a3fe25e73550ab47922a6121f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E44 5320 bytes
font_01_sfnt_off00007048.bin
a5e7a642308b4e0c732a4ac5a66945b399385759e8dee670b6d77c712d4fc528		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7048 10152 bytes

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