Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd97ad402e66c5fa…

MALICIOUS

PDF

39.2 KB Created: 2020-08-22 17:24:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4721ad667932ac29adea6647063be345 SHA-1: 5b7e06b976b728e1875269a8066e16201466c2ac SHA-256: dd97ad402e66c5fa56d5f4e99517abbfbd625b3fdfd842d1252803cc9268f489
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm heuristic, with many links pointing to Shopify-hosted PDFs, suggesting a potential SEO poisoning or content farm for distributing malicious links. The document body, though heavily obfuscated, contains the malicious URL. The presence of a remote-support lure heuristic indicates a potential pretext for further compromise.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/pify?keyword=rockstar+movie+song+lyrics
    • http://files.queensofourbeautifulplanet.com/uploads/1/3/2/6/132696117/2187614.pdf
    • http://files.mikesmassivemissives.com/uploads/1/3/0/9/130968934/rotozitazasi.pdf
    • http://files.bellavistadreams.com/uploads/1/3/0/7/130776728/664f147a.pdf
    • https://cdn.shopify.com/s/files/1/0429/0920/4636/files/savubuzikurezopapekexibe.pdf
    • https://cdn.shopify.com/s/files/1/0435/5430/8257/files/40872905141.pdf
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/maryland_tour_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/6268/9946/files/67276319121.pdf
    • https://cdn.shopify.com/s/files/1/0436/5228/4566/files/mogamuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/7686/8510/files/rupedowowesedejado.pdf
    • https://cdn.shopify.com/s/files/1/0437/5835/4584/files/suzumizozo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/command_prompt_basic_commands.pdf
    • https://cdn.shopify.com/s/files/1/0433/2306/4488/files/cable_stayed_bridge_design.pdf
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/dofolurugi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/ripek.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5944/files/effects_of_deforestation_in_zambia.pdf
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/57517122569.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_off00005c28.bin
568d6c7e38d5279980f867026cc5e5032ced2ba655f4d653e8c5f92e377cec5d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C28 5352 bytes
font_01_sfnt_off00006e52.bin
c45ea2cbefaad7e583c1dd2943849f57e3ff3d0a55c9b5a7e25babe3c0131709
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E52 9848 bytes