Malicious PDF — malware analysis report

Static analysis result for SHA-256 2065a508a8746c4c…

MALICIOUS

PDF

38.0 KB Created: 2020-08-18 22:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 648aabcd5b1a9c39c6dcfaeef56f3e1a SHA-1: b013bbed7fb15dc2624a71b74a95898bc52e2fea SHA-256: 2065a508a8746c4c5e97519bec030ca2c0e42a6904c6f81d6c2d9eb8d0ac1edf
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=cara++apk+iphone+tanpa+app+store'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to a Shopify domain. The document body, though heavily obfuscated, contains the same malicious URL and a call-to-action phrase, suggesting a lure to a malicious site.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cara++apk+iphone+tanpa+app+store
    • http://files.thedigestivehealthclinic.com/uploads/1/3/0/9/130969254/nujuwiduxibiwozeveni.pdf
    • http://salenad.kalaestes.com/uploads/1/3/0/8/130814297/diwepoge.pdf
    • https://cdn.shopify.com/s/files/1/0439/6980/6494/files/business_case_study_analysis_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/3556/5978/files/conversion_of_cdr_file_to.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/13072089940.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/gmat_official_guide_2020_bundle.pdf
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/76453999814.pdf
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/vuniveropoduvometamazig.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/24178398283.pdf
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/fafepenetukoj.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_off00005838.bin
c60a6e4017b9e6c60dac3ceaa5117812ebe1b1e4f2183d03204053b45a86e277		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5838 4844 bytes
font_01_sfnt_off000068a6.bin
ee5872248055436901fb64f32677decf7987ca4e6f2f445d7978f8673188e704		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68A6 10284 bytes

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