Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a7feab39c4a250b…

MALICIOUS

PDF

45.6 KB Created: 2020-08-30 01:23:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a07dcacc162d113ec9c9ff4c23549a9e SHA-1: 040571e620fe933ddf31907d0b0d2a4a2d3e8fa5 SHA-256: 7a7feab39c4a250bb0c024f202a2f2bef6758d7bac78ab2e0d6c1b7a6303cacd
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/wix?keyword=corruption+of+champions+body+lotion'. This URL is likely part of a phishing or scam campaign. The file also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external documents. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=corruption+of+champions+body+lotion
    • https://static.usrfiles.com/ugd/b8c837_e29708be502f42099aadc15b0e736f8b.pdf
    • https://static.usrfiles.com/ugd/e73fea_20b3d48d2f8c4db5b5b6cbb73b1f1f19.pdf
    • https://static.usrfiles.com/ugd/cc089a_82a618234eb8445982f52cc0c4a52a8e.pdf
    • https://static.usrfiles.com/ugd/217d68_6cab1bc33fdb4e7584a6c7dcf68b8b12.pdf
    • https://static.usrfiles.com/ugd/b8c837_8346e753212544c4a081fe7a97d82b1e.pdf
    • https://cdn.shopify.com/s/files/1/0435/6397/4815/files/nikagojazavo.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/40437832333.pdf
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/zivijoseloxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/4200953274.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/aristoteles_politika_zet.pdf
    • https://static.usrfiles.com/ugd/c3f88d_a6ccf888ab194011ac74fee84a335f5d.pdf
    • https://static.usrfiles.com/ugd/4bb894_5a91b3319bd345b6bfcb7dbd3e8f2434.pdf
    • https://static.usrfiles.com/ugd/b8c837_e93bba4aaf294c8580a8d5815231a183.pdf
    • https://static.usrfiles.com/ugd/6116da_a099bfe4780a4d9aa14c0b9b2172e369.pdf
    • https://static.usrfiles.com/ugd/b8c837_741b7f6a61d14d2093375e09dc85b30b.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_off000071dd.bin
0b8fc6249aac5b18e599b84bac1d329366141ac1cf9f92f7b3cc722aa05ad34f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71DD 5540 bytes
font_01_sfnt_off00008489.bin
4f8706ad375fd4b97f4dfc435fa39e4ae46630dcaf568775ff8e3de586fc08f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8489 10948 bytes

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