Malicious PDF — malware analysis report

Static analysis result for SHA-256 c94ab52929f2b771…

MALICIOUS

PDF

75.3 KB Created: 2020-08-22 11:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d52f747e81a4646b1315660528f2532 SHA-1: e2c77301369b0a7981e9df7b6babf3342f6a957a SHA-256: c94ab52929f2b7713699146fd847b461e91a8084d535f8aa7df0048c7e5676a7
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to appear as a TV guide, but the primary link redirects to a known malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link `https://ttraff.ru/pify?keyword=spectrum+tv+guide+melbourne+fl` leads to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger effort to generate traffic through numerous links, many hosted on `cdn.shopify.com`. No scripts were extracted from this sample.

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=spectrum+tv+guide+melbourne+fl
    • http://joxonid.byptrampolines.com/uploads/1/3/1/3/131379730/6427354.pdf
    • http://files.gatewayreadingcouncil.org/uploads/1/3/2/6/132695408/namamepamasawug-rerobekasoxet-nemowu-xibumisixogofo.pdf
    • http://rulakil.meaganlaycockphotography.com/uploads/1/3/1/6/131636725/d08b5a58a7b2.pdf
    • http://files.dixiepackaging.com/uploads/1/3/1/4/131409861/ee9f7f.pdf
    • http://xosino.bvswband.org/uploads/1/3/1/3/131398140/raxosenej.pdf
    • https://cdn.shopify.com/s/files/1/0430/0229/8521/files/91736667358.pdf
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/protein_structure_and_function.pdf
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/heliocarpus_appendiculatus.pdf
    • https://cdn.shopify.com/s/files/1/0429/9934/9407/files/essence_anatomy_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/calendar_related_aptitude_questions.pdf
    • https://cdn.shopify.com/s/files/1/0435/8393/0527/files/abdominal_pregnancy.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/56464270376.pdf
    • https://cdn.shopify.com/s/files/1/0428/5041/8847/files/98758428516.pdf
    • https://cdn.shopify.com/s/files/1/0436/8793/6150/files/abordagens_pedaggicas_da_educao_fsica.pdf
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/77704712471.pdf
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/72416557256.pdf
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/faxamifuduv.pdf
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/21818654909.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_off0000d9f0.bin
1e5f3efc623d8873e72411d18e8a4b3c898621968161571d085797d3e8df8b11
pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F0 5392 bytes
font_01_sfnt_off0000ec38.bin
648905e426a5fee592369c65b3dcc50f261778140ed9c15d51a4b994a25ffafe
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC38 16440 bytes