Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47198722203222f…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 21:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a5c7a55d27b779aea5ad491aad48584 SHA-1: 45dd397aa671abe60cbdd52a878c32a56e6cd0a5 SHA-256: b47198722203222fb6dd3711d74d740e6d7e1e52c4adbe3f4045e6b3fb2d9efc
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a link farm hosted on Shopify, designed to appear as legitimate book downloads. One of the primary links, however, redirects to `ttraff.ru`, a known malicious redirector. This indicates a social engineering attack aiming to direct users to potentially harmful 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.ru/pify?keyword=ecology+and+environment+book+by+pd+sharma+pdf+free+download
    • http://files.katharine-yi.com/uploads/1/3/0/8/130813364/lomad.pdf
    • http://gomojase.christineatkins.net.au/uploads/1/3/1/4/131438641/581322.pdf
    • http://niginewu.5000years.net/uploads/1/3/1/6/131636664/teguda-munimufakovida.pdf
    • http://files.adventfair.co.za/uploads/1/3/1/3/131383657/7239462.pdf
    • http://files.ballsmillssoccer.com/uploads/1/3/1/3/131378838/ledovuk_jafawawafugelok_sekipuzodufoja.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90067119925.pdf
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/mivakowoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/nakama_1a_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/3759/7596/files/89494207483.pdf
    • https://cdn.shopify.com/s/files/1/0434/3654/0056/files/sinagekixubi.pdf
    • https://cdn.shopify.com/s/files/1/0440/3088/6053/files/1467209054.pdf
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/mufixipofi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/90470932224.pdf
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/vonapuburoxifupugiwuwuwav.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/gepifedulozeguneb.pdf
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/lasulotut.pdf
    • https://cdn.shopify.com/s/files/1/0428/4638/8380/files/muvaraketumimokowapafu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3058/4213/files/convert_arabic_into_english.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_off0000632f.bin
bd42f3d596708f199cd22a468a93ae1b6df9a696dceb9472693f2c3e018fccc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x632F 5984 bytes
font_01_sfnt_off0000777e.bin
a0237c0c6c28487636dcda93c9ee078abe700f6bcd719288a52760da1d0a18c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 9944 bytes

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