Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee952a29df60e63b…

MALICIOUS

PDF

40.1 KB Created: 2020-08-20 06:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f6b776ca5013d42d8e81b9bc61691c4 SHA-1: 484ac61d3142a71234bbdf62cf2195d3dda9b1de SHA-256: ee952a29df60e63be5c7458621e59a9b8d7bc695658409b00b55be5501bb22f4
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 ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL. The primary intent appears to be redirecting 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=orchestrale+nota+manual
    • http://files.branchlutheranschoolshaiti.net/uploads/1/3/0/7/130740264/0964b9793e.pdf
    • http://tapukexi.decadesboutique.com/uploads/1/3/2/6/132680813/koxizonovizewefu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/98808645536.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0558/files/5581637487.pdf
    • https://cdn.shopify.com/s/files/1/0437/5478/2869/files/tagalitatateguxoweviniko.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3534/files/xidazerawuwuropokifopu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/50408384528.pdf
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/aprendizajes_clave_espaol_secundaria.pdf
    • https://cdn.shopify.com/s/files/1/0436/4258/5241/files/arduino_mega_pin_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/construction_scope_of_work.pdf
    • https://cdn.shopify.com/s/files/1/0429/7470/7868/files/best_emulator_for_android_studio_amd_processor.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5013/files/autobiography_essay_about_myself.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/82888791627.pdf
    • https://cdn.shopify.com/s/files/1/0440/6181/9045/files/40419639061.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_off00005dc9.bin
1b0104179530a5ea99352dbae4278529ccfa59ecaaabe545d3a1e8c63c3a210a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC9 5064 bytes
font_01_sfnt_off00006ece.bin
923c0f2481b50e983fa0d4a8ff4db7a130b671bce70272599425a2ce53ca470e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECE 11532 bytes

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