Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9df57bf072cccf0…

MALICIOUS

PDF

51.2 KB Created: 2020-08-03 09:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9dd56335e27b446705e5c61ebbb9d13 SHA-1: 6d6fe1d15a6c03e38ac45344985c38a6d0c2cdd1 SHA-256: b9df57bf072cccf0bbb65d8835b6b746030828d4388f6bb9438190dd5013e5a9
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=dr+collins+pcat+2015'. Additionally, it exhibits a PDF SEO link farm pattern, with numerous links hosted on cdn.shopify.com, including 'https://cdn.shopify.com/s/files/1/0433/8617/5651/files/segenivuzanidisikudir.pdf'. The document body also contains urgency language, suggesting a lure. The combination of these factors indicates a malicious intent to redirect users to potentially harmful content.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=dr+collins+pcat+2015
    • http://files.zapmobileentertainment.com/uploads/1/3/0/9/130969942/69f6b5e3cc2.pdf
    • http://files.lifephotographycl.com/uploads/1/3/0/9/130969703/ea9c01.pdf
    • http://files.cookinletliteracy.com/uploads/1/3/0/8/130873781/cc518446.pdf
    • http://files.floydcomputing.com/uploads/1/3/2/7/132710628/lavim-wenife-wafutanelobop.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/segenivuzanidisikudir.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/43273306887.pdf
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/lupivetibigokusetim.pdf
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/pip_install_to_local_directory.pdf
    • https://cdn.shopify.com/s/files/1/0430/6147/7527/files/xoxamokavevelagajud.pdf
    • https://cdn.shopify.com/s/files/1/0438/2274/3712/files/ffxiv_act_kagerou.pdf
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/javascript_delta_time.pdf
    • https://cdn.shopify.com/s/files/1/0431/4877/1488/files/renazi.pdf
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/www_clickerproducts_com_instructions_klik1u.pdf
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/61954202969.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72518400380.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/tofimotifutisededezirede.pdf
    • https://cdn.shopify.com/s/files/1/0431/9939/8052/files/sakez.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_off0000800b.bin
82c695c5df1cabb4ca622a0068e0656dafa5523da50cdfc0042959fcd8aca7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x800B 5376 bytes
font_01_sfnt_off00009265.bin
6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9265 1800 bytes
font_02_sfnt_off00009af5.bin
d719d7f65045a3d6c80674466207496b79f5476e90f1294336e547e7b842934d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF5 10748 bytes

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