Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca3e366b08071eb…

MALICIOUS

PDF

54.5 KB Created: 2020-09-01 10:21:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c6b171a8e02a2dd3fbb3dc7560add55 SHA-1: c526d64af037fcd80cdc1f92ab5ff552e810d7b5 SHA-256: 2ca3e366b08071eb3e39f00e7e2de8d801fa2528ec398564ab5d5449796caa22
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com' and a PDF link farm hosted on 'cdn.shopify.com'. Additionally, a 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to copy and paste content into a command-line interface, likely to execute malicious commands. The document body contains the URL 'https://ttraff.com/wix?keyword=balloon+enteroscopy+report' and appears to be a lure for further malicious activity.

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/wix?keyword=balloon+enteroscopy+report
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/amino_acids_classification.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51098187394.pdf
    • https://cdn.shopify.com/s/files/1/0463/6829/3019/files/tetalos.pdf
    • https://cdn.shopify.com/s/files/1/0430/9418/0001/files/93731609790.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/luganadoragew.pdf
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/33744563602.pdf
    • https://cdn.shopify.com/s/files/1/0462/7755/8432/files/mann_whitney_u_test_reporting.pdf
    • https://cdn.shopify.com/s/files/1/0438/3594/9218/files/33700811689.pdf
    • https://cdn.shopify.com/s/files/1/0435/9284/3422/files/isolation_and_identification_of_actinomycetes_from_soil.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/51232468419.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/warhammer_40_000_fire_warrior.pdf
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/34104871022.pdf
    • https://static.usrfiles.com/ugd/516574_116d6ed8a4394021a7bfdc60cb2cb5bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9e9b7abdb4a4c239e675dd414645d2e.pdf
    • https://static.usrfiles.com/ugd/289c5e_da4cac1cdde042d39d6671475dfed138.pdf
    • https://static.usrfiles.com/ugd/e1c37d_a62afa0d9ccc4d6e9595b5e6a177f605.pdf
    • https://static.usrfiles.com/ugd/3794ad_591e0903f92441f6bfe1c0a8df055208.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_off0000980d.bin
fa5595f75b4d92e1de03f174d0b6293e63e3489d7ff098225948d796d7eb4dd8
pdf-font-stream PDF embedded font (sfnt) at offset 0x980D 5076 bytes
font_01_sfnt_off0000a96c.bin
db9a3d288d5b07142bdba08535e9ceaf0414e6102f5a3a09669442037ea3c613
pdf-font-stream PDF embedded font (sfnt) at offset 0xA96C 10716 bytes