Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4f8df4c5387b0e…

MALICIOUS

PDF

46.4 KB Created: 2020-08-17 14:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ec0d4e81f048b99264761c02044ebc9 SHA-1: bc9a85deb76fc596c0b4e2009ca92bee10104871 SHA-256: 2f4f8df4c5387b0ea65591eb8dc81da63158e62a76c8a0b89e5717000ce255d1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links, https://ttraff.cc/pify?keyword=print+json+formatted+javascript, is identified as a malicious redirector. This suggests the document is designed to act as a link farm, potentially leading users to malicious content or phishing sites through the redirector.

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=print+json+formatted+javascript
    • http://files.hardycoaching.com/uploads/1/3/1/3/131383284/wajexesivividujidi.pdf
    • http://files.fosterperrytravelevents.com/uploads/1/3/0/8/130813757/kubebesazita.pdf
    • http://dowarisif.paolaniebla.com/uploads/1/3/0/8/130814328/891ba6d661.pdf
    • http://files.amrconsortium.org/uploads/1/3/0/7/130775922/38bc9fd8f8.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/54978289568.pdf
    • https://cdn.shopify.com/s/files/1/0434/6819/3952/files/26848388655.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3585/files/73164197534.pdf
    • https://cdn.shopify.com/s/files/1/0430/7868/0727/files/daniel_e_samuel_absoluto_cd_completo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/69827821589.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/how_to_codesign_gdb.pdf
    • https://cdn.shopify.com/s/files/1/0443/3159/7980/files/mevogux.pdf
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/37161505732.pdf
    • https://cdn.shopify.com/s/files/1/0438/9427/6264/files/bhagavad_gita_in_simple_english.pdf
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/zabawumupifis.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/bameterewojozasil.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_off0000697a.bin
c9da3be7c5f12ab6b6fcc74b70a34fd4788c3455698ef9ce5ded5eeec8e3917a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x697A 5196 bytes
font_01_sfnt_off00007b08.bin
2aa32f6aaea956f5ce93e742730684eff1471f23fa0a1f2c7f87e71371840079		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B08 10380 bytes
font_02_sfnt_off00009e8c.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E8C 4324 bytes

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