Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e00a9c1e52c504f…

MALICIOUS

PDF

72.7 KB Created: 2020-09-08 12:21:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b55090745cab04ea0640ab7a09ecad7f SHA-1: b296b52dc999506e0affd837d0bcf653e30f27ba SHA-256: 2e00a9c1e52c504f54ce1aa3283a87d653e457954d29072b955411988b91354e
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/pify?keyword=bluefin+tuna+report+nj'. Additionally, it features a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, suggesting an attempt to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. The document body contains text related to 'Bluefin tuna report nj' and includes the malicious URL, indicating a lure to entice users to click on the link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/pify?keyword=bluefin+tuna+report+nj
    • https://cdn.shopify.com/s/files/1/0459/9051/0749/files/47396420163.pdf
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/adecco_thailand_salary_guide_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/4456/1318/files/types_of_barriers_to_effective_communication.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5256/files/cabildo_abierto_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/5766/7487/files/81743029642.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9816/files/78055044041.pdf
    • https://cdn.shopify.com/s/files/1/0430/9116/5333/files/bo2_best_class.pdf
    • https://cdn.shopify.com/s/files/1/0438/0160/8353/files/75636734956.pdf
    • https://cdn.shopify.com/s/files/1/0434/1851/7665/files/3ds_max_terrain_plugin_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/malorawemofag.pdf
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/54673308226.pdf
    • https://cdn.shopify.com/s/files/1/0437/0333/7114/files/sifatuxoluletasuridizu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5376/0160/files/illinois_secretary_of_state_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0440/4982/5942/files/formative_assessment_strategies_in_maths.pdf
    • https://cdn.shopify.com/s/files/1/0437/8260/2910/files/birepetuwubomazuvuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/4555/2277/files/580183803.pdf
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/29337105404.pdf
    • https://cdn.shopify.com/s/files/1/0438/8965/5960/files/volalufuremukujar.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5e2.bin
96f0752842f71d54e2d6f8d9c22c07939af899027701c1b1dc996adb4720d74f
pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E2 4724 bytes
font_01_sfnt_off0000d5fe.bin
8aecd9c618374fb7079320809623fbd4b9c96347a7ca6226cb6fb1d8630dbbc7
pdf-font-stream PDF embedded font (sfnt) at offset 0xD5FE 15896 bytes
font_02_sfnt_off00010769.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x10769 4324 bytes