Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd9f9cb94a098f9…

MALICIOUS

PDF

198.4 KB Created: 2020-08-07 16:31:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 498b462cba1b82925f7b10d0b6b92ad7 SHA-1: 6f349d0d453423785606d5e23991882b89b57532 SHA-256: 9dd9f9cb94a098f943bdf906ec2f6fc683cfc1134d81298420ad7d9e63d9eb7a
68 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=spring+boot+latest+documentation+pdf'. This URL is likely used to redirect the user to a malicious site for phishing or malware download. The document body also contains the same URL, reinforcing its malicious intent. The presence of a visual download button lure further supports a malicious workflow.

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.
  • 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.cc/pify?keyword=spring+boot+latest+documentation+pdf
    • http://files.alamodecollections.com/uploads/1/3/1/3/131379256/3718762.pdf
    • http://files.stamfordstrings.co.uk/uploads/1/3/2/6/132682868/wotibuno.pdf
    • http://files.aftonhistoricalsociety.org/uploads/1/3/1/4/131406046/84e6a8e83bdc2.pdf
    • http://dowesexaf.kierstenmodglinauthor.com/uploads/1/3/0/7/130739024/bavil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8181/files/tiwapodu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2373/5720/files/55798282361.pdf
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/87261311379.pdf
    • https://cdn.shopify.com/s/files/1/0431/1908/3677/files/vukinozapesozotumupupu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/91417596169.pdf
    • https://cdn.shopify.com/s/files/1/0433/8325/9285/files/dux_britanniarum_rules.pdf
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/muwato.pdf
    • https://cdn.shopify.com/s/files/1/0432/3809/7051/files/graphical_user_interface_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/13506848998.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_off0002c690.bin
14abd56f505054d3dcc6e6e0b6cb24d9cb7db8db5e45d4ba2734b0fb84ae4e3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C690 5716 bytes
font_01_sfnt_off0002d9ea.bin
32233a3beedd42f6fce2c4693d5b884464b8bc8b396fbbbd75232bddc7edf360		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9EA 15980 bytes

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