Malicious PDF — malware analysis report

Static analysis result for SHA-256 3506bcb27d3c19a8…

MALICIOUS

PDF

54.5 KB Created: 2020-09-08 05:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 476b5a34515d400a446140cfc9f1566c SHA-1: 0c9e2e94f8a21a96823c2f329ac3a4f7e36e12d9 SHA-256: 3506bcb27d3c19a88de083de768a9feff73552a948fde811d096419084014d9b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The embedded URL, 'https://ttraff.me/wix?keyword=cts+e-+box+sql+question+and+answer', is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure. No scripts were extracted, limiting the analysis of further execution stages.

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.me/wix?keyword=cts+e-+box+sql+question+and+answer
    • https://static.usrfiles.com/ugd/d54300_628c160cce514cd59afac8e45c72a0c7.pdf
    • https://static.usrfiles.com/ugd/856cea_0081749f8c7e43d69ae198e3d356d471.pdf
    • https://static.usrfiles.com/ugd/eeb7bd_6c8e858720604c01ba13a96af7610b6c.pdf
    • https://cdn.shopify.com/s/files/1/0437/0294/3899/files/eyewitness_travel_guides_review.pdf
    • https://static.usrfiles.com/ugd/60e703_7e9d3d6b658c42dcb2c0c2c6aa5b7f59.pdf
    • https://static.usrfiles.com/ugd/978dd5_c1e30dc0a422466d8d9ccbbee92bba05.pdf
    • https://static.usrfiles.com/ugd/ac72e0_302335aa15f04da7b0f8d80d735c1e17.pdf
    • https://static.usrfiles.com/ugd/0adedf_4d8c3713773d4557b0ce3fb835a5ace1.pdf
    • https://static.usrfiles.com/ugd/efb3f0_c01fa1b1ea0a41f5866703345efbee29.pdf
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/dubabanolobamo.pdf
    • https://cdn.shopify.com/s/files/1/0461/6791/6696/files/90304441153.pdf
    • https://cdn.shopify.com/s/files/1/0429/4174/3263/files/lazufafaka.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/konunogafiwazosavotas.pdf
    • https://cdn.shopify.com/s/files/1/0437/4495/2471/files/room_check_in_check_out_form.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_off000097d9.bin
fe51776689009c84703ca52bb021b3f6d0561bbbe9e278544509a60fb94b4288		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97D9 5180 bytes
font_01_sfnt_off0000a997.bin
28c9fa9b8ffce98f6113b4102db714822c246bb5b08ee4849c3d1f8fdd5aa312		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA997 10312 bytes

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