Malicious PDF — malware analysis report

Static analysis result for SHA-256 47dc0a24f905926e…

MALICIOUS

PDF

46.1 KB Created: 2020-08-14 20:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73782be6cf1fb5e97fc023e392a41a43 SHA-1: 758b7f1199ed52ca1ca405680185dfa773e39536 SHA-256: 47dc0a24f905926e24b5b8bfeebaebb0dadc9dde2d17fdc251f4c6d9de9aa96f
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.ru, which is known malicious infrastructure. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics. This suggests the PDF is designed to trick users into visiting a malicious site, likely for further exploitation or malware delivery.

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/wb?keyword=ullmann
    • http://files.fremonthog2232.com/uploads/1/3/1/4/131453156/3048822.pdf
    • https://cdn.shopify.com/s/files/1/0432/7230/6852/files/wabaxidev.pdf
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/ratukotasik.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdf
    • https://cdn.shopify.com/s/files/1/0437/6281/1034/files/administration_vs_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/64867604381.pdf
    • https://cdn.shopify.com/s/files/1/0431/7875/4199/files/faxisawawajuxifoneno.pdf
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/creative_discord_role_names.pdf
    • https://cdn.shopify.com/s/files/1/0436/7125/7241/files/cabala_para_principiantes_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/kiwilepebepimosos.pdf
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/compress_files.pdf
    • https://cdn.shopify.com/s/files/1/0431/4690/3709/files/39316079538.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/8068989857.pdf
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/wupozazit.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/velolesaziz.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_off000066cb.bin
56ae1edf85c1b588821718bf7566ef32e0050164bfc36e15998b2313d491fb88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66CB 5484 bytes
font_01_sfnt_off0000794a.bin
4cb94005e990a721099ab6cb6a93d77eb9991cdc2e5881a8e2e065e348e76b84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794A 10292 bytes
font_02_sfnt_off00009c5d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C5D 4324 bytes

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