Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc03dfc8c067b3f…

MALICIOUS

PDF

35.1 KB Created: 2020-08-31 15:17:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b0cc7d477877fa004548e7e608f8331 SHA-1: 672e28cb0ce5ea0e33444a5f029df04f9b7df485 SHA-256: 3cc03dfc8c067b3fc0a08dcd0c89b6e7b855bd9939986f978c7e033edf2afc64
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=aradhana+all+songs++pagalworld'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to generate traffic or distribute content through numerous external links. The document body, though heavily obfuscated, also contains the same malicious URL.

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=aradhana+all+songs++pagalworld
    • https://cdn.shopify.com/s/files/1/0435/4847/5541/files/automatic_control_kuo.pdf
    • https://cdn.shopify.com/s/files/1/0463/5587/3958/files/96298532710.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5866669006.pdf
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/21700103516.pdf
    • https://cdn.shopify.com/s/files/1/0470/9387/4846/files/informed_consent_form_clinical_trials_template.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/bazaar_app_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0432/0077/4307/files/macbook_serial_number_lookup.pdf
    • https://static.usrfiles.com/ugd/576447_b6628bafcde74855817b63d8dd922e8b.pdf
    • https://static.usrfiles.com/ugd/906e9f_657316edacb549c8934ae4e74ea5ddd0.pdf
    • https://static.usrfiles.com/ugd/3dd68e_93141f8a96ee4e08867832d1c6ce6b34.pdf
    • https://static.usrfiles.com/ugd/c3f88d_b610c17ed96545db97ba82987a09e024.pdf
    • https://static.usrfiles.com/ugd/b8c837_99ad1b897190417794d4720556388221.pdf
    • https://static.usrfiles.com/ugd/b8c837_9cb0c7f7e05c460f8636592472dbac9e.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_off00004aaa.bin
6c622151e435b35216a0927aabc644f130888cbb0436e5fad7d608651e989e02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAA 5300 bytes
font_01_sfnt_off00005cb9.bin
03912b819b8783cfa9cdda35b9b9f49a50134ac61644f47bc512f57a26bd716a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB9 10332 bytes

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