Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a15b1e941177da…

MALICIOUS

PDF

38.1 KB Created: 2020-08-05 04:27:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4977b7e0e55f6648adb0dfdd68dc8a8e SHA-1: 789a801aa7ad81ef18a1fb52fcf9d5d79dd2d145 SHA-256: e1a15b1e941177da09686b82e31458504a857c074f33df90e4fe4216ecdf60bd
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to appear as legitimate SEO material, but the primary link redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that the initial URL leads to a known malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into downloading further content, likely malicious.

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.com/pify?keyword=the+art+of+seo+mastering+search+engine+optimization+pdf+download
    • http://files.snowformatics.com/uploads/1/3/0/7/130738974/mumefezemagal_sejukusa_ruvojiw_rerebul.pdf
    • http://files.mwdcoach.com/uploads/1/3/1/4/131452958/4becd4090e9.pdf
    • http://files.empoweredlifestyles.net/uploads/1/3/1/6/131606901/413a0d.pdf
    • https://cdn.shopify.com/s/files/1/0436/4202/8182/files/53197626465.pdf
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/61117799331.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/rigibozebuladalofinerusas.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/gafumizenanijelujeved.pdf
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/47861670208.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/serratus_anterior_stretch.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/43489186809.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/jodemibakekavalel.pdf
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/49885635560.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/tapowimisu.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_off0000560a.bin
d7ebc850ecb5ee4f2bb59b7c23bc60a44de747e2f8289eb485434eeefad94255		 pdf-font-stream PDF embedded font (sfnt) at offset 0x560A 5660 bytes
font_01_sfnt_off00006940.bin
084a54c7c68ec7bd6c41797e605b01cee64b78c170d27d9ffa5c3d08206c55f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6940 9996 bytes

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