Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba8071d0691065f7…

MALICIOUS

PDF

48.4 KB Created: 2020-08-14 23:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c5911c27d0715558fcaecbb7ac76a4d SHA-1: df64b589747dc1bb9a4e7a988251e9f090080e9a SHA-256: ba8071d0691065f78f26ff34bb5c1448d8d84906a8943bbd368b1ddc75776ea5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=alight+motion+full+pack+apk'. This URL is likely used to deliver a payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains references to 'Alight motion full pack apk', suggesting a lure for software downloads. The presence of a link farm heuristic further indicates a malicious intent to distribute content or redirect traffic.

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.ru/pify?keyword=alight+motion+full+pack+apk
    • http://files.grettaharleymusic.com/uploads/1/3/1/4/131437380/vogowujelizo.pdf
    • http://files.ionaabbeyandclandonald.com/uploads/1/3/2/6/132682119/4808946.pdf
    • https://cdn.shopify.com/s/files/1/0439/8897/5774/files/75823023896.pdf
    • https://cdn.shopify.com/s/files/1/0452/1220/5216/files/abstract_noun_list_a_z.pdf
    • https://cdn.shopify.com/s/files/1/0451/0826/5125/files/perioral_dermatitis_nhs.pdf
    • https://cdn.shopify.com/s/files/1/0431/7980/2782/files/38895322975.pdf
    • https://cdn.shopify.com/s/files/1/0429/6045/3791/files/nuxuvixadedotod.pdf
    • https://cdn.shopify.com/s/files/1/0430/0367/4785/files/27860930166.pdf
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/wekiziluwutake.pdf
    • https://cdn.shopify.com/s/files/1/0440/2806/7990/files/55306687735.pdf
    • https://cdn.shopify.com/s/files/1/0438/3784/9762/files/10436122576.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/dulaxafalixu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/bifinibi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/trip_wire_hook_recipe.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_off00007f59.bin
bd57c2dc72cf77d40c1d1f64cf6ff66484a198d140db06810efa6c284c7ab461		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F59 5208 bytes
font_01_sfnt_off000090fb.bin
e26083b283bc7dcaa61e75eab1f6efb9bc951fc60e6e13a5dd7d08e1e929ce15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90FB 10352 bytes

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