Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8ad8ad418c5d14…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 00:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4020c6b8bd02e92cb119e58bb90c3088 SHA-1: 2e970af8b542e7fec1afc585fb130a899731c875 SHA-256: 9e8ad8ad418c5d14dd9bffefe4ce3dd6cb3bb6448e7f621944a194db2e9a609a
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one that redirects to a known malicious domain (ttraff.com). The document body, though heavily obfuscated, contains the URL that is also present in the heuristics. This suggests the document is designed to trick users into visiting a malicious site by presenting it as sheet music.

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.com/pify?keyword=amazing+grace+cello+solo+sheet+music
    • http://files.aawte.org/uploads/1/3/1/4/131453194/wevikozaj_viruziv.pdf
    • http://files.deboabjj.com/uploads/1/3/1/8/131857315/3766232d666.pdf
    • http://juvemeja.innerharboracupuncture.com/uploads/1/3/1/4/131453416/cbca4fb130.pdf
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/44694797019.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5663/files/admin_panel_template_codepen.pdf
    • https://cdn.shopify.com/s/files/1/0439/3687/4651/files/jumedezinipibuzusutopo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6754/7552/files/goperofuxexokalexor.pdf
    • https://cdn.shopify.com/s/files/1/0432/6667/0745/files/kemokutuvozuwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/8017/9109/files/autumn_leaves_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0436/5221/9030/files/ho_chi_minh_tourist_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/600137283.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/short_guide_to_writing_about_biology.pdf
    • https://cdn.shopify.com/s/files/1/0429/8188/4067/files/5764881348.pdf
    • https://cdn.shopify.com/s/files/1/0435/6639/9647/files/whitechapel_this_is_exile.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_off00005955.bin
1ba101afe8144d1738b3847c990b0ac6d5f1de75fc1e75b4b87549ff8d0e3d10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5955 5136 bytes
font_01_sfnt_off00006a96.bin
247dd17a0f586d8192da2ef571f6d22799fbc71a9a99d7a00e6afa69c41ac18f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A96 15088 bytes
font_02_sfnt_off00009963.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9963 4324 bytes

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