Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e27a14e45081ee6…

MALICIOUS

PDF

47.5 KB Created: 2020-08-09 07:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 067215d5584fc32a2d2708c40863cdeb SHA-1: c32f7acaa1129d67538fd2c092f65dd43a4171b8 SHA-256: 9e27a14e45081ee6234a0b15145b784b6c0881d75c542ce6b2489cec18d80b02
150 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to a book title, which is then followed by the malicious URL. The presence of a PDF link farm heuristic further suggests a malicious intent to distribute links to potentially harmful content.

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.ru/pify?keyword=lives+of+the+prophets+anwar+al+awlaki+pdf
    • http://susufuw.ianthomsen.com/uploads/1/3/1/0/131070786/tedilukibifip-dudonixovos.pdf
    • http://files.everfluxtechnologies.com/uploads/1/3/1/4/131406535/7ed4839.pdf
    • http://files.emorylanedesigns.com/uploads/1/3/1/3/131383580/8885572.pdf
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/83582582701.pdf
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/17222840946.pdf
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/70011398031.pdf
    • https://cdn.shopify.com/s/files/1/0430/4814/0949/files/51579140219.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/sewipewuwurusobetegus.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4628/files/vufebogavaso.pdf
    • https://cdn.shopify.com/s/files/1/0435/9186/0383/files/31070882406.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/add_watermark_to_adobe_acrobat_pro_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46506788711.pdf
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/23851129291.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98223768302.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_off0000625c.bin
285e91ca4cafc362144d6f1ac77f51267b3f19f9b0c733c1536a117631b1420f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x625C 5284 bytes
font_01_sfnt_off0000746a.bin
5c7f0f1d2bfb6fbd783ee594eb8012f6ba9682e0f645a647c1a1e828d5178b5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x746A 10244 bytes
font_02_sfnt_off00009779.bin
1dc0a608e6f09eb10d7eb9a67b416bd093b510175afcf41e69a30442ff94dd19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9779 17300 bytes

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