Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad5bc2366be4b925…

MALICIOUS

PDF

42.5 KB Created: 2020-09-18 04:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 011fa381f6781b5665a1f4a325ea1c6e SHA-1: c0fd9d1b7f8cf0c288a9ed48f985f1805f0d41d3 SHA-256: ad5bc2366be4b925886e276837e2e85a7bf6b452a4dca8070e13ec64394ad46a
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a string that appears to be a lure for a 'Protoss unit guide'. The PDF's structure and link farm indicate a phishing or redirection attempt, likely to deliver a secondary payload or lead the user to a malicious site. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=protoss+unit+guide
    • http://files.kaplan.scot/uploads/1/3/1/4/131453283/gazupemanilegewi.pdf
    • http://tategaz.vtssc.org/uploads/1/3/0/7/130740178/duvepej.pdf
    • https://585339a5-75c5-4c4d-8997-847a5d435c5d.filesusr.com/ugd/144d27_3171277c72994f8dbc5bd8ccfb8c90bf.pdf?index=true
    • https://ba6e875f-b366-4785-b35b-ecbfd80a46af.filesusr.com/ugd/9cb112_410d382106354cfb86739a278aed4e68.pdf?index=true
    • https://51df8105-d768-46a3-863a-1bbf8330a691.filesusr.com/ugd/99afdc_f6dba45ecd20450d8fbdf684e93e34a8.pdf?index=true
    • https://49eed056-1ffe-4e99-aa88-e6ddad566939.filesusr.com/ugd/c068f8_82e7a2271f204ae7a8f73d1bd40a4d93.pdf?index=true
    • https://deff9531-8bcf-4e15-884e-9efeea88eb18.filesusr.com/ugd/57c819_ed41366192c84cbb9d5d70467b2357f7.pdf?index=true
    • https://7bd09609-b331-4f12-9849-91248e4bfd03.filesusr.com/ugd/a474dd_c44cb2de20f84d579f94943cf2960e61.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/5048/3368/files/bexevet.pdf
    • https://cdn.shopify.com/s/files/1/0436/1653/4685/files/python_super_function.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_off00005d88.bin
cccb0b514c065b54e0f8ffbaf90f8cdc134475aa51e1cbb959e865f50e8156b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D88 4632 bytes
font_01_sfnt_off00006d4e.bin
25f04aad30fcedd6f93394f6c42e7b97c9858d5b1e17c937c0f56dd3193b643a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4E 10092 bytes
font_02_sfnt_off00008fd5.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD5 4324 bytes

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