Malicious PDF — malware analysis report

Static analysis result for SHA-256 480db008415ce5c6…

MALICIOUS

PDF

41.8 KB Created: 2020-08-05 11:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f8a8736e99c9b4cf3eefc41df5ce786 SHA-1: f71db21f8a0223308421545c605bb0c9989231dc SHA-256: 480db008415ce5c6e2dd5e0b924b59e6a74fea96e60829bd5bc901ef7f9e80d5
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=oxidation+of+alcohols+to+aldehydes+and+ketones+pdf'. This indicates the document's primary purpose is to redirect users to a harmful destination. Additionally, a PDF link farm heuristic suggests the document is designed to host numerous external links, likely for SEO manipulation or to distribute malicious content. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent.

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=oxidation+of+alcohols+to+aldehydes+and+ketones+pdf
    • http://files.mattschorr.net/uploads/1/3/1/8/131857060/virivage.pdf
    • http://files.peterjenningspoker.com/uploads/1/3/1/0/131070434/tilolav-debafuviworuxog.pdf
    • http://files.savedanyway.com/uploads/1/3/1/4/131454034/vipalutoge.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/jabaluzosatomefavurif.pdf
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/92972264042.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0957/files/87125904490.pdf
    • https://cdn.shopify.com/s/files/1/0434/9041/0658/files/bhutan_tourist_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/8478743679.pdf
    • https://cdn.shopify.com/s/files/1/0428/9092/0099/files/gokisolomabixenusirina.pdf
    • https://cdn.shopify.com/s/files/1/0435/5850/2563/files/1898376091.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8307/files/fisiopatologia_da_retinopatia_diabetica.pdf
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/1441821641.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/brooker_biology.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/zipumam.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/4863354807.pdf
    • https://cdn.shopify.com/s/files/1/0437/4511/6311/files/7577508781.pdf
    • https://cdn.shopify.com/s/files/1/0437/4121/6929/files/26045065560.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_off00006538.bin
ecfd0dea112f3cf139bd4b3585dd76ee0a902170de1f427d6f66d0a900515926
pdf-font-stream PDF embedded font (sfnt) at offset 0x6538 5408 bytes
font_01_sfnt_off000077ac.bin
28f43119bf6b195d34ee14673e2adbd1932f1a4772bc35f73a120d6d0f02a45f
pdf-font-stream PDF embedded font (sfnt) at offset 0x77AC 10196 bytes