Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb18d0d6e9d532ef…

MALICIOUS

PDF

37.7 KB Created: 2020-09-04 18:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 521bf053b562f4e634d049f70fdb219d SHA-1: 2cd087b71ed9675886c69b4b78c1f1a23c713a03 SHA-256: eb18d0d6e9d532ef9193998871d264323e6a9dd8aa6e47a903543f426b84b2ed
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to a 'channel guide' and includes the malicious URL. This suggests the document's primary purpose is to redirect users to malicious infrastructure. 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.me/wix?keyword=eastlink+sudbury+channel+guide
    • https://static.usrfiles.com/ugd/268ab1_d5733d2811f5410984f7e483f606c012.pdf
    • https://static.usrfiles.com/ugd/64f9d2_778c4d20b2fb42bd8a648e4022db24c8.pdf
    • https://static.usrfiles.com/ugd/b4a829_ee832ef43e43401e9017a7e65bd46aac.pdf
    • https://cdn.shopify.com/s/files/1/0437/3794/0117/files/noneta.pdf
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/digonipananikur.pdf
    • https://cdn.shopify.com/s/files/1/0430/7602/6522/files/66005254088.pdf
    • https://static.usrfiles.com/ugd/943725_54a9c2e7d495460f9b39642fc86ec607.pdf
    • https://static.usrfiles.com/ugd/b8c837_28b413088bb9429c999e97ad9c7d5aa9.pdf
    • https://static.usrfiles.com/ugd/314c35_1fad3fb97d844aa896042864e1afe3c8.pdf
    • https://static.usrfiles.com/ugd/0779a3_680ae571a0674df89741cc75a438aa90.pdf
    • https://static.usrfiles.com/ugd/bdeb4c_7008aa463d57456a8b1ef11fe8722c7b.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_off000048cc.bin
083c240c7f5cc677dbe9c2a19a497235b92f5751276d3bcc8b1d2bc9a5fff5b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x48CC 5236 bytes
font_01_sfnt_off00005a89.bin
c9039b8eb3b15563397db68f6009c140f2790ff503c889fd24946aed58f1629f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A89 9840 bytes
font_02_sfnt_off00007c1d.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1D 4324 bytes