Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50cf297ef598263…

MALICIOUS

PDF

39.5 KB Created: 2020-08-29 05:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dfa9ad3cb072f4fd17be1d0f291803f SHA-1: cdae48f68a2f856ee62dbfff35a4be3efde16673 SHA-256: e50cf297ef59826366c0fe38a82833a27719dc1f973cd3c0daea4ef2e0dc74d9
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=apostila+ingles+basico+pdf'. This URL is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains references to the same URL and appears to be a lure for a 'basic English PDF'. No scripts were extracted from this sample.

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/wix?keyword=apostila+ingles+basico+pdf
    • https://static.usrfiles.com/ugd/b8c837_7c0b106612424a5fb229895303f43756.pdf
    • https://static.usrfiles.com/ugd/b8c837_b469bbfbb92b47b990690137d1cb885f.pdf
    • https://static.usrfiles.com/ugd/b8c837_5649eb9cde3848058c2ce7b979c8e0d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_eb8f0d6663694b40a20dccc2731d356b.pdf
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/venifola.pdf
    • https://cdn.shopify.com/s/files/1/0435/4103/7208/files/sapagel.pdf
    • https://static.usrfiles.com/ugd/b8c837_71baf34b07de4a609da323efc26e6da5.pdf
    • https://static.usrfiles.com/ugd/b8c837_869ac493c09145dba22f0521491ed8c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_49f50439a2954bceb8847135f482ab26.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c7a0545dd644a4597e1808e05e2b81c.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_off00005d8c.bin
7324a991263068a8fec13a633d4211b20045c5602288244f4f05f88ca2f8f980		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8C 5356 bytes
font_01_sfnt_off00006fcc.bin
0935054946d3935d2b644f337c167832ff4d98241d18d889e8003eda519e299d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCC 9948 bytes

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