Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32fca304570d63b…

MALICIOUS

PDF

48.5 KB Created: 2020-08-02 14:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d44c385206e0e5b5612df628b86b8a3 SHA-1: fb93016f9fb1b009370bfa8a3fe957ddd7305ce4 SHA-256: b32fca304570d63be79e4419c2591fe3e7879a470ffa611878f43d543787f764
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure (https://ttraff.cc/pify?keyword=ranged+combat+5e), suggesting an attempt to lead users to malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on various domains, reinforcing the link farm attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

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=ranged+combat+5e
    • http://files.thegeorgiaruthhouse.com/uploads/1/3/1/8/131871501/0d6ca592f82e6ea.pdf
    • http://files.ristorantepizzeriacasamatta.com/uploads/1/3/1/3/131383771/7423539295.pdf
    • http://files.divinaartwork.com/uploads/1/3/1/8/131856624/1995723.pdf
    • https://cdn.shopify.com/s/files/1/0435/5214/5560/files/63433607732.pdf
    • https://cdn.shopify.com/s/files/1/0434/8667/5109/files/kukaxirotumuwok.pdf
    • https://cdn.shopify.com/s/files/1/0429/9728/5027/files/27333959727.pdf
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/wivetinitozimoje.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/14700598842.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/kinifewufixenatakazoribi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6924/2534/files/my_michelle_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0434/6911/1449/files/zegofolegipetuvu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/10510322156.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/95623705642.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000754d.bin
908e3f98f96975c9d064eba112acd8e3fdf9df5949b31995c1a34ed07b293504		 pdf-font-stream PDF embedded font (sfnt) at offset 0x754D 4964 bytes
font_01_sfnt_off0000861b.bin
fbe7f5bf14d87a1dff24661e6a66ba22beea4dcc299cdba4364c97674588a3c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x861B 9800 bytes
font_02_sfnt_off0000a78c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA78C 4324 bytes

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