Malicious PDF — malware analysis report

Static analysis result for SHA-256 8453b18666b8c9d4…

MALICIOUS

PDF

44.1 KB Created: 2020-08-23 04:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 594514c7dab5da1262e00bc82a41809c SHA-1: de5782250d1b984fc71fb82d669749d45d87d7b5 SHA-256: 8453b18666b8c9d4f4aae62ff47dfb1d3b03ca2c29e9131eede7e7f10f16ddaf
120 Risk Score

Malware Insights

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

The PDF file contains a link farm of numerous PDF files hosted on Shopify and other domains, with one primary redirector URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the initial URL leads to malicious infrastructure. The presence of a large number of external PDF links suggests an attempt to obscure the final destination or to leverage SEO techniques for distribution. The document body itself is heavily obfuscated and contains the primary malicious URL, indicating a likely phishing or malware delivery attempt.

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.cc/pify?keyword=corpus+christi+cranebrook+school+uniform
    • http://files.paulzimmerman.hk/uploads/1/3/1/4/131452735/7794559.pdf
    • http://files.ibomusicalvoyage.com/uploads/1/3/2/7/132712235/ruxekazu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/pevarukewonoremidudi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0558/files/fovamowipo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54903558396.pdf
    • https://cdn.shopify.com/s/files/1/0440/8773/8533/files/24720392591.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5890/files/duvilifogirolu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/falazipufefiwiwawik.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/93258282456.pdf
    • https://cdn.shopify.com/s/files/1/0437/6100/8791/files/17376735745.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005db4.bin
47039fdb72a8d676a57a9f2704a0ab216a491f66046c8f122b93647c309bac85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB4 5364 bytes
font_01_sfnt_off00006fbf.bin
8b34aa8d889b41765270b648b2dfbe81b7da1254ba5247beef32737a221e398d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBF 10548 bytes
font_02_sfnt_off000093bf.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93BF 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.