Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b96b8b4f9a20a2d…

MALICIOUS

PDF

93.2 KB Created: 2020-08-02 18:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6774ec0ef5b7e830e54545a17ab74bea SHA-1: c2caa4d97bfe7eee88c3be45d4d1cd60ebedffe1 SHA-256: 8b96b8b4f9a20a2d641f81f019dcc129a5ff971e6f9899c6c12526ce585836b5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=5e+swashbuckler+build'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the redirection attempt. The primary intent appears to be luring the user to the malicious ttraff.cc domain.

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=5e+swashbuckler+build
    • http://files.indulge1461.com/uploads/1/3/1/3/131379663/pevakibesinux_sekulul_nofaxuje_xiwenoga.pdf
    • http://files.traveltoasiaandback.com/uploads/1/3/2/6/132696598/5114391.pdf
    • http://files.mrgscience.com/uploads/1/3/0/7/130740053/gatirivij-wabixaja-sefebozeminib.pdf
    • http://files.bellaholisticsskin.com/uploads/1/3/1/4/131407051/mepup.pdf
    • http://files.uptimizm.net/uploads/1/3/0/9/130969057/2272485.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/mamerimezo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/45941261506.pdf
    • https://cdn.shopify.com/s/files/1/0432/4936/9252/files/75125119264.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/13867841937.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5502/files/69660570092.pdf
    • https://cdn.shopify.com/s/files/1/0430/9182/0695/files/9067925236.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9115/files/arduino_esc_control.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/febit.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/51577533822.pdf
    • https://cdn.shopify.com/s/files/1/0430/4194/7801/files/20201905411.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_off00013180.bin
acf6e8f3a9d43bfd4d804d21d9adaf0b551efa559ac905edd5ad40ddef9bbe5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13180 5352 bytes
font_01_sfnt_off000143ba.bin
cb541a54571bdf9bebfc3bad374db5f03806b8f58ae1e1a7b4d71aa1e28ede7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143BA 10512 bytes

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