Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed01e63968fa1661…

MALICIOUS

PDF

39.7 KB Created: 2020-08-15 04:24:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01d53771cdef7b65b89af4626671c096 SHA-1: 1cd17746b1c04e6c488264ee4206f73847d6e332 SHA-256: ed01e63968fa16610e90354c9aeb949fdc4ef6b1ba2027c61b3cf127b9c4d308
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a link farm, with a primary URL pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Assassination rogue guide wowhead' and the malicious URL, suggesting a lure to trick users into clicking malicious links. The ML classifier strongly flagged this PDF as malicious.

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/pify?keyword=assassination+rogue+guide+wowhead
    • http://files.senojwatches.com/uploads/1/3/0/7/130775850/9334735.pdf
    • http://vasomizo.pourhorsepottery.com/uploads/1/3/0/7/130740072/jifatoku_tibubo_fumozija.pdf
    • http://files.jackmccuemd.com/uploads/1/3/0/7/130776509/relubotisa.pdf
    • http://files.mamaannsdesserts.com/uploads/1/3/1/4/131437074/f2984fef.pdf
    • http://files.shaktishalayogaguernsey.com/uploads/1/3/1/6/131606652/1270812.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/73047759692.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/17038344298.pdf
    • https://cdn.shopify.com/s/files/1/0431/6292/7263/files/20943538787.pdf
    • https://cdn.shopify.com/s/files/1/0431/5945/3845/files/9mm_reloading_data_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/0254/3778/files/arteritis_nodosa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/charismatic_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0438/8981/9800/files/61981789303.pdf
    • https://cdn.shopify.com/s/files/1/0430/7507/6258/files/antecedentes_historicos_de_la_mecanica_fisica.pdf
    • https://cdn.shopify.com/s/files/1/0430/3824/5017/files/93665772165.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_off00005e7a.bin
ebca72d20e6da5cd021647205712578bcf48c7baf8ae1954e0f45dc26f64c6a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7A 5136 bytes
font_01_sfnt_off00006ff1.bin
63467458a54cdc425d7dff2e8e48b12e25843ad5ea5f2535d5733692f72b99ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF1 10024 bytes

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