Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc00d5ac90251ae3…

MALICIOUS

PDF

46.7 KB Created: 2020-08-01 23:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a7ab85542314151910713633ea7e185 SHA-1: 01e873717850963adde67a8a4fd74752634ecdcc SHA-256: dc00d5ac90251ae31d0d4ea93688f0cc303361ce812d43e7de6ae4d823a1bf52
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Dale Carnegie sales training pdf' and the URL 'https://ttraff.cc/pify?keyword=dale+carnegie+sales+training+pdf', suggesting a lure to a malicious site. The presence of numerous Shopify links, while many are benign, indicates a link farm strategy. No scripts were extracted, but the PDF structure and embedded links point to a social engineering attack.

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=dale+carnegie+sales+training+pdf
    • http://files.eleanormccormick.co.uk/uploads/1/3/0/8/130813827/8756444.pdf
    • http://files.bradfordalliancechurch.com/uploads/1/3/1/4/131453021/011dbfe3a17e47d.pdf
    • http://files.chaplainsinternationalinc.com/uploads/1/3/0/9/130969433/zogutu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24370467333.pdf
    • https://cdn.shopify.com/s/files/1/0428/6955/5359/files/14806448858.pdf
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/lunikidemojox.pdf
    • https://cdn.shopify.com/s/files/1/0437/7178/9469/files/8452005857.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/xituxoritonenuz.pdf
    • https://cdn.shopify.com/s/files/1/0437/4469/0337/files/ziviwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/15951410295.pdf
    • https://cdn.shopify.com/s/files/1/0432/0644/3163/files/77185925205.pdf
    • https://cdn.shopify.com/s/files/1/0433/9200/8357/files/harry_potter_house_logos.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/zozifi.pdf
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/fukegamusugano.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_off00006318.bin
d8050fcdedc20d2c44e6ce950aaad0940ba6de4f4745c8a616a2ad2927139737		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6318 5320 bytes
font_01_sfnt_off00007548.bin
10f1ac95a2192face3d25636a995d617160fdaff6ab463b736ea7b882e9f3623		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7548 10412 bytes
font_02_sfnt_off000098f6.bin
88439519992b54a76c49e1773b2988ac0eb869403dfb9e9ab63ea25f7580dedb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98F6 16120 bytes

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