Malicious PDF — malware analysis report

Static analysis result for SHA-256 7432e286a041a2d6…

MALICIOUS

PDF

43.0 KB Created: 2020-08-09 11:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95c74a7a78a898e9bb3a276e5c3a9cb4 SHA-1: c72a9ecbed674011248fbb6d1d7c774ae3b55650 SHA-256: 7432e286a041a2d62ed75f90171dc40b581a810baeca7e66db37df754b242532
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a high heuristic for a clipboard command lure, instructing the user to copy and paste content into a shell context. This suggests the document's primary purpose is to trick the user into interacting with a malicious URL, likely to download and execute a secondary payload.

Heuristics 4

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=ncr+atm+machine+manual+pdf
    • http://likud.imsarc.net/uploads/1/3/0/8/130874655/0054aac1f.pdf
    • http://numevufik.wonderfullymadebirthdoula.com/uploads/1/3/1/3/131383483/f6d0268083575a5.pdf
    • http://medemovor.mistymartinez.com/uploads/1/3/1/0/131070786/6200972.pdf
    • http://files.rustedacresoaps.com/uploads/1/3/0/7/130739651/c69467c9af039.pdf
    • http://files.convectionery.co.uk/uploads/1/3/1/3/131378776/gomowogis.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/74793011206.pdf
    • https://cdn.shopify.com/s/files/1/0437/5222/6974/files/mewezemesavatawurobuzus.pdf
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/86317226957.pdf
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/sasixem.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xixuvedivikeror.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/lefepamemebin.pdf
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/dusegapumizurozipafi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/25959136728.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8757/files/wepaninaxonilexuzisivo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/php_last_modified_file_in_directory.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/jajuluxug.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3554/files/vujivemiwibiw.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_off00006b06.bin
56861af40c257b9971d986e8e6aed419e8cae100c99c2c2fbe01b20e59183540
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B06 5184 bytes
font_01_sfnt_off00007c8a.bin
a4d617adbd2d35949787853b8156d630eb52647901174428ae44c2e9eef7f0b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8A 10136 bytes