Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb74228960ea119…

MALICIOUS

PDF

43.2 KB Created: 2020-09-19 02:20:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00101dbd13564634d2e80c9e5dd3c7b6 SHA-1: 96bebc64afe9dbc7f339be0bdf46f2ec4237fb8f SHA-256: 2eb74228960ea11990ada23133aaae4846693a1780c016b7dd3cb43999305d2f
152 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=aroma+cooker+manual'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to this URL and a large number of other URLs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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.me/wix?keyword=aroma+cooker+manual
    • https://cdn.shopify.com/s/files/1/0433/5652/0616/files/14752152449.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/algebra_equations_and_inequalities.pdf
    • https://cdn.shopify.com/s/files/1/0432/0487/0305/files/31397650953.pdf
    • https://cdn.shopify.com/s/files/1/0432/8819/9332/files/69645920764.pdf
    • https://cdn.shopify.com/s/files/1/0482/8997/2385/files/8461889866.pdf
    • https://cdn.shopify.com/s/files/1/0431/4732/9702/files/xilarusutivuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/nunujisovusukepakarix.pdf
    • https://cdn.shopify.com/s/files/1/0430/7301/1865/files/bmw_brand_identity_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/8449463942.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5079/files/kubawizuserifi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/33708054855.pdf
    • https://cdn.shopify.com/s/files/1/0439/1976/9755/files/c_v_c_ka_full_form.pdf
    • https://8239323d-1f53-415b-b55e-1661170e1465.filesusr.com/ugd/8ce377_198e26b49af64484968ccc4183971c90.pdf?index=true
    • https://c36e5d0b-1d80-4ff5-9083-299d3d597bf3.filesusr.com/ugd/a31856_6492143c0efa47a1802ff29079dc08ae.pdf?index=true
    • 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_off00006c78.bin
475b34667a34cff967fb332d4eed0b300bd99a325004c87b1b79e176322eb02a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C78 4820 bytes
font_01_sfnt_off00007cc1.bin
6a69a5828de630d56d7a7c971fe54e612844e6fd95aa8284d2bf6ad09ec68ee5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC1 10364 bytes

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