Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed1e0ff02cfea56…

MALICIOUS

PDF

53.1 KB Created: 2020-08-22 00:19:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8642cf7edeed5a8b3ac95ebfb45db9c8 SHA-1: 7d93577a8ca2e04f757289558be5676ec39c6b03 SHA-256: 7ed1e0ff02cfea569ada1f9f7a6709e0bcb42bc92f07f9cc927c253b244997fe
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bloc+quebecois+platform+carbon+tax'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to shopify.com domains. The document body, though heavily obfuscated, contains the same malicious redirector URL. This suggests the primary purpose is to redirect the user to malicious infrastructure.

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=bloc+quebecois+platform+carbon+tax
    • http://files.piedmontgreencbd.com/uploads/1/3/1/0/131070560/lebuvuvoxe_ruwafifuluwej_zalizutezal_gisuv.pdf
    • http://files.strenthbasedteambuilding.com/uploads/1/3/2/8/132814387/6489208.pdf
    • http://files.pjswinkwriter.com/uploads/1/3/1/0/131071067/9813812.pdf
    • https://cdn.shopify.com/s/files/1/0433/8316/0983/files/agathiyam_book_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/84091310398.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/kesegemawoluv.pdf
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/rachmaninoff_concerto_2_piano.pdf
    • https://cdn.shopify.com/s/files/1/0436/4373/2126/files/6516915596.pdf
    • https://cdn.shopify.com/s/files/1/0440/6935/5670/files/pytorch_tensor_to_numpy.pdf
    • https://cdn.shopify.com/s/files/1/0437/7418/1537/files/77558297972.pdf
    • https://cdn.shopify.com/s/files/1/0428/6539/3820/files/22035621090.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/41131279233.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_off0000910f.bin
8a165f154cfa7a15d931dff9b8589781618e09a20c1408005bffac0ec76ab1cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x910F 5544 bytes
font_01_sfnt_off0000a3d6.bin
7ab4d15a957d389b1bb7acada5ddc5a9c28f464194e7bf516e83729ae351670c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D6 10444 bytes