Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0915e6b073be14a…

MALICIOUS

PDF

49.7 KB Created: 2020-08-06 00:33:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5504e7e4f052958e1a538d6b2717cbcf SHA-1: 6e62a2d840abc37a834b0e86abe98d295eb4a6f3 SHA-256: a0915e6b073be14a6d6fea503c422c4c5aee223f6f173fb9a4d566fc3572b605
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The primary malicious URL is https://ttraff.cc/pify?keyword=osaka+travel+map+pdf, which likely serves as a lure to a malicious site. The document body, though heavily obfuscated, contains references to the URLs, suggesting a social engineering attempt to trick users into clicking malicious links disguised as a travel map.

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=osaka+travel+map+pdf
    • http://files.dmcihomesinc.com.ph/uploads/1/3/2/7/132712508/pivape_xaxovaxunin_zegefovag.pdf
    • http://files.santucciorthodontics.com/uploads/1/3/2/6/132681368/kofupejekupebaf.pdf
    • http://files.pernaphoto.com/uploads/1/3/1/1/131164524/2172435.pdf
    • http://files.dibblemusic.com/uploads/1/3/1/0/131071041/mivenikugejap-pijewanibo.pdf
    • http://files.daffodilacres.com/uploads/1/3/0/7/130775171/6878424.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/90726258249.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76640573288.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0690/files/63665922564.pdf
    • https://cdn.shopify.com/s/files/1/0440/7109/2376/files/filoxumujiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/bovadowudumikafazivevobam.pdf
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/34513311978.pdf
    • https://cdn.shopify.com/s/files/1/0440/7237/0326/files/dudedobezogoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/69657704180.pdf
    • https://cdn.shopify.com/s/files/1/0435/5466/8705/files/86272567469.pdf
    • https://cdn.shopify.com/s/files/1/0432/0329/7437/files/8610245711.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59044096386.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_off0000839f.bin
52bb7248b003852603aa000e08668c2ef04e42af9e3ce7a06dd5cf29d3114503		 pdf-font-stream PDF embedded font (sfnt) at offset 0x839F 5340 bytes
font_01_sfnt_off000095bc.bin
b6734ebd3a6e6e478f13a749f45938bd2043dd4a830720496471b1a1ee2ec0eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95BC 10900 bytes

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