Malicious PDF — malware analysis report

Static analysis result for SHA-256 de69225151b23a2f…

MALICIOUS

PDF

45.8 KB Created: 2020-09-17 12:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e927222491db37b947d0d202bbb0ae06 SHA-1: 57c24dda9e0e68b85306f2da48afbacb5e64cef1 SHA-256: de69225151b23a2fc82f8fbc1a2e0f949133716c2c130cda49786deae7a3904a
130 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found by heuristics. This suggests a phishing or social engineering attack aiming to redirect the user to malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=mr.+morgan%2527s+math+help+website
    • https://692cd36f-0313-4e55-a117-e742b1438dff.filesusr.com/ugd/455f95_fb68e76f14c749b487e41ea848265456.pdf?index=true
    • https://ae21f981-9d06-4596-b012-a792bd798809.filesusr.com/ugd/eb4c03_934c0b500d854391b806691c3d9784f4.pdf?index=true
    • https://22aeb55d-6c86-4847-a2ee-2f449ef47c7d.filesusr.com/ugd/417718_4c3247bc9e464122b80c98c17f71c447.pdf?index=true
    • https://75914f5a-8fe2-44de-ba9e-591188ab1c13.filesusr.com/ugd/0a052f_440cbf90a32243ac858421ec145cddd6.pdf?index=true
    • https://6399767c-d63d-4e85-aad3-d5b53461192d.filesusr.com/ugd/69695d_6a4705908c40449c95965e44552fcbed.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/2816/9382/files/36798544982.pdf
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/carnelian_stone_meaning.pdf
    • https://e87a576a-4be2-405f-a5af-670841d402ec.filesusr.com/ugd/cec570_e0efcf4a9ccd4c22804f03f497449d12.pdf?index=true
    • https://5716f33b-9840-444b-bb83-be0653f12cce.filesusr.com/ugd/d13e1f_c062974eacae4848b987422fff8b6b1c.pdf?index=true
    • https://cde5c8bd-a45b-4804-8f93-1509781743d8.filesusr.com/ugd/8a05ec_baf8da8892f244eab205fa612b71c213.pdf?index=true
    • https://8d33c333-2520-49e4-9997-1b968205ef40.filesusr.com/ugd/9c8fb9_4c3415349e59492fb6aa6c625dd7d6f5.pdf?index=true
    • https://4f0cd398-aaca-4e3b-8b66-ea3fa11c6874.filesusr.com/ugd/89c6ad_f85cd09cae53465893ce48353eb0e3ae.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/7994/0761/files/faperorodomijivulotix.pdf
    • https://cdn.shopify.com/s/files/1/0432/0090/5373/files/9665709021.pdf
    • https://cdn.shopify.com/s/files/1/0432/9583/4276/files/begowumatupomim.pdf
    • https://cdn.shopify.com/s/files/1/0435/9480/9512/files/vodasesasura.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84602765162.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_off00007271.bin
b06b2c98152891d9ecc2eb0ac4ec1ebf0fbb8374526b142ba67e729361872538		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7271 5536 bytes
font_01_sfnt_off00008540.bin
7e374f13140f7e36154de451f884150a430e58498d990c6ce86e1725921bc952		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8540 10888 bytes

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