Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0fa148f3237282a…

MALICIOUS

PDF

41.3 KB Created: 2020-08-29 13:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24368eb2858021c069e1427ee6595657 SHA-1: ef2ba37b7e5828303f19355cdfa4dec5e20b63da SHA-256: e0fa148f3237282a26246c337ff0c2e42a6922467bd3765120dbbef5f0eebc2e
162 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/wix?keyword=minecraft+food+tent+labels, which is likely intended to lure users into clicking it. The presence of a 'Password-protected archive lure' heuristic suggests this PDF may be part of a multi-stage attack where the actual payload is hidden within a password-protected archive, requiring further user interaction or a provided password to access.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/wix?keyword=minecraft+food+tent+labels
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/50023765208.pdf
    • https://cdn.shopify.com/s/files/1/0438/5947/6630/files/euphoric_recall.pdf
    • https://cdn.shopify.com/s/files/1/0465/5353/0526/files/arte_mediathek_mac_os_x.pdf
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/lokelavodebokurasari.pdf
    • https://cdn.shopify.com/s/files/1/0432/7391/2488/files/67667116227.pdf
    • https://cdn.shopify.com/s/files/1/0437/9652/9313/files/basic_english_grammar_azar_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/asuhan_keperawatan_gastroenteritis_akut.pdf
    • https://cdn.shopify.com/s/files/1/0439/2560/2472/files/43515711707.pdf
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/zesebukudimafo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/months_between_dates.pdf
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/baking_homemade_pizza_on_cookie_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/6131/2676/files/66159847202.pdf
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/billion_dollar_whale_malaysia.pdf
    • https://cdn.shopify.com/s/files/1/0437/9652/9314/files/zafodobanudekovusalofawo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/argumentation_and_debate_austin_j_freeley.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdf
    • https://cdn.shopify.com/s/files/1/0434/1176/7448/files/64880196975.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_off00006487.bin
6b745387a5bcf230c2132ea4dcf04df65cdbbef705b1a9346b83692fddb6304c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6487 5160 bytes
font_01_sfnt_off0000761b.bin
04f89c29fc4d361649bc153469f98b277ecdd42a57b45d0b5e4bc094cb8cb1e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x761B 10016 bytes