Malicious PDF — malware analysis report

Static analysis result for SHA-256 375a5f2e83f64c02…

MALICIOUS

PDF

44.5 KB Created: 2020-08-30 07:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8320da4390d139112f0b944864acb55 SHA-1: e3e400558abf3d30907463c44ff1f0c775f6fbaa SHA-256: 375a5f2e83f64c028a37e7734c0f3cb912d10701fb1ed737794413878d390461
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to `ttraff.com`, indicating a likely phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to a guide and URLs, reinforcing the lure. The presence of numerous PDF links suggests a link farm used for SEO poisoning or to obscure the final malicious destination.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=the+mama+natural+week-by-week+guide
    • https://cdn.shopify.com/s/files/1/0437/8922/2037/files/86250519810.pdf
    • https://cdn.shopify.com/s/files/1/0449/3869/0728/files/13200347670.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/63452322846.pdf
    • https://static.usrfiles.com/ugd/07625c_9bdb1ba8c7f3439f8e45d09f1a64d556.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc392fe176fb4a268201b862ed063098.pdf
    • https://static.usrfiles.com/ugd/d162e3_e8c50ac6f0cd4ff5a0caca2c9774ca8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_8614395f95f14a9492019aaa4f76754e.pdf
    • https://static.usrfiles.com/ugd/33ab24_66d3467e60204a17b303ed6abe2d0d61.pdf
    • https://static.usrfiles.com/ugd/822ecd_9a7a3a3d7a6d4553b6c6066c44127b0a.pdf
    • https://static.usrfiles.com/ugd/405339_79ad7c9b86c144a481d043a468f86bd8.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_off00006f9b.bin
858618eda44e6ca827b3d63ff3029da3daf4c05d82e39b17d3670ac182e3935c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9B 5440 bytes
font_01_sfnt_off0000820d.bin
0e25bf972989c1d2898f42aa8a6c48a180cab004d7835b91b3af1b3cf3b39718		 pdf-font-stream PDF embedded font (sfnt) at offset 0x820D 10412 bytes

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