Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda80cbe06e664a4…

MALICIOUS

PDF

45.4 KB Created: 2020-08-29 02:02:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9988ca39116d41849e90d335ec448ff8 SHA-1: 8680ed4158b00bf4d135a37cce324e9a021d889d SHA-256: fda80cbe06e664a477de571aabb63e461d490fe2a649f7dd65d2cde30087c3a9
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the target URL is associated with malicious infrastructure. The presence of a link farm suggests an attempt to distribute malicious content or phishing pages.

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.ru/wix?keyword=agario+cheats+no+download
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/53671400048.pdf
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/69043261983.pdf
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/geberaloriregap.pdf
    • https://cdn.shopify.com/s/files/1/0465/3252/6238/files/54472756123.pdf
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/22720458507.pdf
    • https://cdn.shopify.com/s/files/1/0428/7863/2095/files/grama_sachivalayam_digital_assistant_key_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/pasebegeguvadopalosud.pdf
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/chayanne_mariana_mambo.pdf
    • https://cdn.shopify.com/s/files/1/0449/8666/3070/files/nacionalismo_econmico.pdf
    • https://cdn.shopify.com/s/files/1/0440/7230/4790/files/derifexanez.pdf
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/27637037228.pdf
    • https://cdn.shopify.com/s/files/1/0445/1752/3615/files/pisciculture_carpe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/zetafafegatelosizag.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/amazing_grace_organ_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3630/files/b_lactamase_inhibitors.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8aee9cf3d224da8ab4beb6219a02a37.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab2ed23df8174c8a945b6e9f43d58aad.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4a5d3b94b0c4a18aa2693b900cc7b9a.pdf
    • https://static.usrfiles.com/ugd/b8c837_5feaceab535f40989b1c48f2273993c2.pdf
    • http://i.imgur.com/573p0AO.png/img
    • 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_off000071d9.bin
71dc976978a6fd31e2bfa9e69071118f47069d36ff27f900d9e441b0d2fe517d
pdf-font-stream PDF embedded font (sfnt) at offset 0x71D9 5280 bytes
font_01_sfnt_off000083d3.bin
4ce2eaa2126af3b49992340a2834a2e09df71ea4fa033dbbebca463b0bc4ebd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x83D3 10784 bytes