Malicious PDF — malware analysis report

Static analysis result for SHA-256 f46f52be902a24ca…

MALICIOUS

PDF

46.7 KB Created: 2020-08-08 05:20:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5120ccd77975093eae760bc52f4c94a1 SHA-1: 9710b84f9e286165687b8ca53a5b57a1adc1babe SHA-256: f46f52be902a24ca5360d56fcda91e2eede4dd122420b09322b1d7f22da4773d
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The primary malicious URL is https://ttraff.cc/pify?keyword=subject+verb+agreement+quiz+with+answer+pdf, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to disguise the malicious intent. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious redirection attempt.

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=subject+verb+agreement+quiz+with+answer+pdf
    • http://files.mrmaglocci.com/uploads/1/3/0/7/130776167/maguv-lalovuzig.pdf
    • http://wuluk.debbiebarran.net/uploads/1/3/0/8/130873995/sakogubuvopon.pdf
    • http://files.roughedgesconfectionery.com/uploads/1/3/0/7/130776407/2055833.pdf
    • http://files.kernellee2kettlecorn.com/uploads/1/3/0/7/130739603/vatupakav.pdf
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/33606328128.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/mcdonalds_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/alternative_renewable_energy_sources.pdf
    • https://cdn.shopify.com/s/files/1/0431/3301/0082/files/kesexojalekapimeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/anselme_bellegarrigue.pdf
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/map_of_the_united_states_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/dezizesigafud.pdf
    • https://cdn.shopify.com/s/files/1/0434/9024/6822/files/canon_mp250_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/4285/6344/files/56585433890.pdf
    • https://cdn.shopify.com/s/files/1/0434/4535/4658/files/45866523993.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/36167668414.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067e1.bin
7ae59b396763e28c99f0e8eee79de5b48496f28f567b9c8fe714f23468f446e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x67E1 5956 bytes
font_01_sfnt_off00007c0d.bin
94303817e6937cc25e3447b2b20dd0fbb3c014bd498b8afb828c7e8fb0f03690
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0D 10372 bytes
font_02_sfnt_off00009f3d.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F3D 4324 bytes