Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffadeb734240144a…

MALICIOUS

PDF

57.6 KB Created: 2020-07-30 13:25:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60df757629d5346e98e45f64255fd40c SHA-1: c88f5d08ae705c3c572743bc09abc90ee17caede SHA-256: ffadeb734240144a31db6dadc2c599111c2a5292e293096294e7ea76343721d7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, suggests a lure related to an intelligence test. The primary attack vector appears to be directing users to malicious URLs, likely for further exploitation or credential harvesting.

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=stanford+binet+intelligence+test+pdf
    • http://files.notyouraveragechurchgirl.org/uploads/1/3/2/6/132695321/kedojozefurupif_zekawufugugora.pdf
    • http://files.mbilder.com/uploads/1/3/1/4/131406816/1092288.pdf
    • http://files.pillowstudios.com/uploads/1/3/0/8/130874205/fixisojet.pdf
    • https://cdn.shopify.com/s/files/1/0434/5397/2630/files/25728977614.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/bexano.pdf
    • https://cdn.shopify.com/s/files/1/0434/0963/7533/files/biwojilunojolisulu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/zatutuletakodaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/4205/4048/files/zusewopal.pdf
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/fanebezosogiworifaraxofo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/47933391513.pdf
    • https://cdn.shopify.com/s/files/1/0436/9842/1913/files/7077349425.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/sesiziz.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/24185686267.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31670740491.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_off0000a3a4.bin
09bd7bde7807e41269e2413c4bd673b29902da34c1a6b33aa9c8ed3c5879cbea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3A4 5356 bytes
font_01_sfnt_off0000b5d1.bin
bd0d8263adb29126bfd54babda632d43eca64c8039f9ea529063c19bae7ddee1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5D1 10284 bytes

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