Malicious PDF — malware analysis report

Static analysis result for SHA-256 a584cd1b3c7ee2d5…

MALICIOUS

PDF

43.4 KB Created: 2020-09-14 01:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01c3fb150f3e7e5b46467207b61a3675 SHA-1: bc3de6b0c6028ca17253b198c009791756189383 SHA-256: a584cd1b3c7ee2d5fe22f107528078f96bbe44570a2a18565386852acfb7231e
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to 'Ragnarok m eternal love leveling guide mage' and the malicious URL, suggesting a lure to entice users to click the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users to potentially harmful sites.

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.com/pify?keyword=ragnarok+m+eternal+love+leveling+guide+mage
    • http://files.sextherapyportland.com/uploads/1/3/1/6/131606280/cfec3.pdf
    • http://files.entomoanthro.org/uploads/1/3/2/6/132695698/lizuted.pdf
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdf
    • https://cdn.shopify.com/s/files/1/0434/2090/9725/files/air_waybill_definition.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70998441087.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/22873263327.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/fanurelobadumiwaxebugidet.pdf
    • https://cdn.shopify.com/s/files/1/0460/1620/0863/files/componentes_del_proceso_de_enseanza.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/speaking_test_ielts_sample.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_off00006bf6.bin
26cfd7bae3ffda364326eaa99bf15fc6894310d7a6e2379cfbd819580fb58abf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF6 5100 bytes
font_01_sfnt_off00007d49.bin
786358cb7597571b836f17d2155a4e6cb3cc64c9b1645e125ac6e7aa788860b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D49 10440 bytes

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