Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f76c0df7321c3e9…

MALICIOUS

PDF

44.3 KB Created: 2020-08-27 21:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b46e35ef6b9cb4890df97405574f1d7 SHA-1: 140f098b9e3831525e8d39667f8c847caa68f9cf SHA-256: 9f76c0df7321c3e9e41673a5dad5b437e5a03b094dd74a238d4d56bf4de3b757
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 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and several other Shopify URLs, suggesting a link farm or content distribution network used to host malicious or misleading documents. The primary attack pattern involves luring users to a malicious redirector, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of specific execution behaviors.

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=the+game+the+documentary+2.5+download
    • http://dozunajek.kira-marie-mccullough.com/uploads/1/3/1/4/131453558/kilabo.pdf
    • http://files.valiquet.com/uploads/1/3/1/3/131380845/figutigevukasonawew.pdf
    • http://files.mrscbiology.com/uploads/1/3/1/3/131380641/6327604.pdf
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/center_of_excellence_model.pdf
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/21577024140.pdf
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/26010268882.pdf
    • https://cdn.shopify.com/s/files/1/0440/8701/7637/files/call_of_duty_mobile_tencent_2019.pdf
    • https://cdn.shopify.com/s/files/1/0435/9002/5375/files/36693451315.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8573/files/causes_of_stress_management.pdf
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/leduto.pdf
    • https://cdn.shopify.com/s/files/1/0438/4433/7824/files/71588782389.pdf
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/jebasezasiperilujoweg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdf
    • https://cdn.shopify.com/s/files/1/0430/5672/6170/files/smoothie_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxumadebamapetutorobegew.pdf
    • https://cdn.shopify.com/s/files/1/0444/1748/2919/files/sql_data_analyst_interview_questions_and_answers.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_off0000609a.bin
8fb19184f6cd6849d41347a25dee024aa6f40dfc4acbb39bf8b8d47af6a4da5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x609A 5440 bytes
font_01_sfnt_off00007318.bin
590a538b3e7b654fb1eee304ba539018e8da145e3a16050b9b1839d31a4e8f2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7318 10180 bytes
font_02_sfnt_off00009607.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9607 4324 bytes