Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f6cc3e19f0a0b07…

MALICIOUS

PDF

35.8 KB Created: 2020-08-22 13:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93bddddc6ae4c4c5a2897f32ff671d9b SHA-1: b59510f6e511cb6d1f5279632cdff7408dea93a8 SHA-256: 1f6cc3e19f0a0b07af1a04287f38ee8afeab7c9881a99c77ce4f227d2f9410be
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to movie songs and the malicious URL itself, suggesting a lure to entice users to click the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many pointing to Shopify domains, which are likely used to obscure the malicious redirector. The primary malicious IOC is the redirector URL.

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=anandam+movie+video+songs+free++telugu
    • http://files.madephotobooths.com/uploads/1/3/2/7/132740399/60ecb4e8fb.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/24774991212.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/92456338542.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/tawunumaridavizutijoki.pdf
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/bodisetov.pdf
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/research_paper_on_budget_and_budgetary_control.pdf
    • https://cdn.shopify.com/s/files/1/0438/7530/3592/files/pdf_splitter_and_merger_free_software.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/pupebuvidupobelisilowixav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/megan_rock_of_love.pdf
    • https://cdn.shopify.com/s/files/1/0441/3734/9272/files/open_dental_query.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/20186508402.pdf
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/45504773298.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_off0000421a.bin
62d0e0df6e168e4c0e5e0f0a9fad56b4db5d0254f55c4d49e874f5e52b04baa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x421A 5160 bytes
font_01_sfnt_off00005392.bin
b77e72e10e871df6f8ea6fa6bb761656b51eac5a0c6e24be9c2674f94214938d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5392 9616 bytes
font_02_sfnt_off00007484.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7484 4324 bytes

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