Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17e4b57bc5a6f8a…

MALICIOUS

PDF

38.7 KB Created: 2020-08-02 05:21:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6192ba78c1bd38f085958333b252a61e SHA-1: f918849f6c07717ce87c487a5ea621613176e3cf SHA-256: a17e4b57bc5a6f8a38daf58fb246b24e0fb81d640802afe2fc88e2967e12920a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains hosting other PDFs. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=pattern+magic+2+pdf'. This suggests the document is designed to lure users into clicking through a series of links, ultimately leading them to 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=pattern+magic+2+pdf
    • http://files.specialedu4parents.com/uploads/1/3/1/6/131606368/liwatinemi.pdf
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdf
    • http://files.expertcharlottelocksmith.com/uploads/1/3/0/7/130775504/117317fa.pdf
    • https://cdn.shopify.com/s/files/1/0428/1047/4663/files/46109071807.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/gefowepi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/93652773280.pdf
    • https://cdn.shopify.com/s/files/1/0431/5539/0630/files/86725219962.pdf
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/c_makefile_example.pdf
    • https://cdn.shopify.com/s/files/1/0428/9812/9062/files/63855499172.pdf
    • https://cdn.shopify.com/s/files/1/0430/3188/8021/files/75535560473.pdf
    • https://cdn.shopify.com/s/files/1/0428/1116/2790/files/harold_jacobs_geometry.pdf
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/word_ctrl_f9.pdf
    • https://cdn.shopify.com/s/files/1/0435/3903/8359/files/xolemu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/vinogagamojewexozuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/1976542304.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_off000058c3.bin
918a330f6dd95250a86346f5eb63493e04ac430bcc3ecaa39bd43ffbb0e309e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58C3 5396 bytes
font_01_sfnt_off00006b11.bin
8e44dc68103ca9db6fa19622a5be0b67621837f1e7afd11d3a5acff3c821786a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B11 10352 bytes

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