Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14a9bc13fd4eddf…

MALICIOUS

PDF

38.9 KB Created: 2020-08-25 23:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58d8d2d83ced7f0c0eaa6a664314d918 SHA-1: 336aabb82f3bf9afeb1a93171b08012805552260 SHA-256: c14a9bc13fd4eddf23043cb8e13242af347838875dd8d902d503e6d30ff8f8a4
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and a reference to 'piece of rare unidentified gear', suggesting a lure. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs, potentially for SEO manipulation or to host further malicious content.

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.cc/pify?keyword=piece+of+rare+unidentified+gear
    • http://files.hatterasarchives.com/uploads/1/3/2/8/132814024/700639a.pdf
    • https://cdn.shopify.com/s/files/1/0429/8879/8111/files/7101540915.pdf
    • https://cdn.shopify.com/s/files/1/0428/3095/4655/files/80616838560.pdf
    • https://cdn.shopify.com/s/files/1/0431/6302/5559/files/youtube._com._activate.pdf
    • https://cdn.shopify.com/s/files/1/0440/8279/0552/files/skamper_pop_up_camper_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/9444/9055/files/femtocell_technology_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/pimebivegusuxipoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9957/files/44960605928.pdf
    • https://cdn.shopify.com/s/files/1/0439/3431/8760/files/samsung_galaxy_s7_android_9_custom_rom.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/90897254815.pdf
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/63196995721.pdf
    • https://cdn.shopify.com/s/files/1/0432/1070/3010/files/tnt_minecraft_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/6958/8135/files/47337899150.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_off00005b2e.bin
1afc996c308db76a9f96d137457f90f73a41dc1267aea40c0a52b2f78219c214		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2E 4980 bytes
font_01_sfnt_off00006c25.bin
1520abe9b7f80afa19431a3650572a54c106d17b87def72369874894de178398		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C25 10156 bytes

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