Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b2e916b7b9b7d09…

MALICIOUS

PDF

40.1 KB Created: 2020-09-03 20:59:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78a9a180715db31faabf55b7dc480e79 SHA-1: 7e41760a6ef2ed8eaf230148cac195a07704207b SHA-256: 2b2e916b7b9b7d0949ee6fb5059615719c743a0652ff20282d7a19b0a58a1b50
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a critical link to a known malicious redirector at `https://ttraff.me/wix?keyword=balupu+naa+songs++com`. The document body, though heavily obfuscated, appears to contain this URL and other links hosted on Shopify. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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.me/wix?keyword=balupu+naa+songs++com
    • https://cdn.shopify.com/s/files/1/0434/8857/5638/files/90869366548.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0803/files/86848473849.pdf
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/tufod.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/66953042467.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6938/files/demosijanovege.pdf
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/rexuxitavivawopim.pdf
    • https://cdn.shopify.com/s/files/1/0461/4068/6489/files/instagram_stories_extension.pdf
    • https://cdn.shopify.com/s/files/1/0429/9885/7891/files/9720864512.pdf
    • https://cdn.shopify.com/s/files/1/0432/0971/9965/files/beledisamotefopisasu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/63928771473.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/string._format_integer_vb._net.pdf
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/41066996256.pdf
    • https://cdn.shopify.com/s/files/1/0434/2644/7525/files/jenovoxafokujifite.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_off0000600b.bin
d97f1cd24caad814554147f8fcd693d5e5177bc6dc9f16caa9db66cf2082e97b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600B 5204 bytes
font_01_sfnt_off000071bb.bin
87986b990fc2a89bcd0a387a717d22afeec3b9992cf6febb8f3010117b62d611		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71BB 10028 bytes

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