Malicious PDF — malware analysis report

Static analysis result for SHA-256 b649859d63237baa…

MALICIOUS

PDF

32.4 KB Created: 2020-08-04 05:34:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6966fc4c9d9971acc88cbb82ec3e6eb4 SHA-1: 617a29aa3ee3f5c4bee4a9079909ed836a172841 SHA-256: b649859d63237baa014ea12ec76ed2ecb91d626d96857fc5f39ddc31a3e79550
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains text related to sheet music and includes the primary malicious URL, suggesting a lure to a malicious site. The presence of a PDF redirector link and a link farm indicates a malicious intent to drive traffic to potentially harmful destinations.

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=all+of+me+piano+sheet+music+pdf+piano+guys
    • http://namam.roselleyouthtrack.com/uploads/1/3/0/9/130969742/f9a8b678.pdf
    • http://files.sandysfashionsformen.com/uploads/1/3/0/8/130814055/lilig-pipenatatoxodal-guvajatomerov-busojafigoj.pdf
    • http://files.sallysharpe.net/uploads/1/3/1/3/131383977/gutimogux.pdf
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/2437552496.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/98939715504.pdf
    • https://cdn.shopify.com/s/files/1/0435/0282/9734/files/vivojavakewi.pdf
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/retisibesofa.pdf
    • https://cdn.shopify.com/s/files/1/0429/1998/5319/files/malikez.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/90389202300.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdf
    • https://cdn.shopify.com/s/files/1/0433/0517/3147/files/alienware_fan_control.pdf
    • https://cdn.shopify.com/s/files/1/0437/4629/5959/files/lowes_boardman_ohio.pdf
    • https://cdn.shopify.com/s/files/1/0429/3355/1260/files/jofefesatusarevekebitemen.pdf
    • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/10656680377.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_off0000418c.bin
4d439f30b3cc863afe58fc37744f421d8c534dd5507a028c3b9ed0885555daf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x418C 5564 bytes
font_01_sfnt_off00005463.bin
f61b87eca4a9d91a90b47a15eea6dcbbb984170451e9f2863a0a38563ea98765		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5463 9544 bytes

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