Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c532e43376870f4…

MALICIOUS

PDF

424.9 KB Created: 2020-09-06 01:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2a99af256e0b81996d9412859ea504e SHA-1: 4eee9da27a286479665abb927ae795a6045b34f9 SHA-256: 0c532e43376870f4bb1dcc52f62404df1da8743aca16b445904a318d6cd6d5dc
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded text and a URL that is flagged as malicious, suggesting a phishing attempt. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically identifies the URL 'https://ttraff.cc/pify?keyword=booking+holdings+annual+report' as a redirector to malicious infrastructure. The 'SE_INVOICE_LURE' heuristic further supports the phishing pretext by indicating the document uses an invoice or payment-related lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9854

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=booking+holdings+annual+report
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/66251160344.pdf
    • https://cdn.shopify.com/s/files/1/0437/6877/4807/files/alvida_jumma_status_2019.pdf
    • https://cdn.shopify.com/s/files/1/0454/7454/5816/files/mastering_blockchain_andreas.pdf
    • https://cdn.shopify.com/s/files/1/0435/4985/1811/files/dipabopejetasepokodugis.pdf
    • https://cdn.shopify.com/s/files/1/0432/8062/9913/files/astrology_for_beginners_bv_raman_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/kexurewinapavebefozo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9898/6909/files/choledocholithiasis_guidelines_ercp.pdf
    • https://static.usrfiles.com/ugd/b8c837_67869d0b1a424653b7b6877be0e9f2df.pdf
    • https://static.usrfiles.com/ugd/b8c837_c6eba044e763446e97e044e59ea99c06.pdf
    • https://static.usrfiles.com/ugd/fedf23_adfbea0a9aec4fbb9ab88dcf930d9e27.pdf
    • https://static.usrfiles.com/ugd/79e0dc_df23cb02326d4ecba1b034023e75794e.pdf
    • https://static.usrfiles.com/ugd/b4609a_9b23725e409346d49e6d3f77b29ed1b5.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00063923.bin
e5082d47b1788dcdd72939122fcfe31c486ed6bd395f0577e8beb46026e09564
pdf-font-stream PDF embedded font (sfnt) at offset 0x63923 5332 bytes
font_01_sfnt_off00064b46.bin
5e2ec25099f984a375170822fc421d3f2781ad06713ab1b4631fa10688c27b17
pdf-font-stream PDF embedded font (sfnt) at offset 0x64B46 16524 bytes
font_02_sfnt_off00067e57.bin
1264a556fabc14c69ec4ba4609a347bffa09942e523f09f2774283a283413be9
pdf-font-stream PDF embedded font (sfnt) at offset 0x67E57 16088 bytes