Malicious PDF — malware analysis report

Static analysis result for SHA-256 99c12050847f8275…

MALICIOUS

PDF

47.0 KB Created: 2020-08-15 07:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ca32904fe72727716cdf48e45186316 SHA-1: 66b07b9690c5396821d42db7312162bb1981bad6 SHA-256: 99c12050847f827558b02b404755bd61cd9cb3a661f6323fdd298b3b2294efc3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL and appears to be a lure related to 'Apple music files to pc'. The presence of a malicious redirector suggests an attempt to lead the user to a phishing site or a malware download page.

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.com/pify?keyword=apple+music+files+to+pc
    • http://files.unidadepastoral.com/uploads/1/3/1/4/131437351/195585ef.pdf
    • http://files.alba-a-new-dawn.com/uploads/1/3/1/1/131163859/sanodix.pdf
    • https://cdn.shopify.com/s/files/1/0431/5509/5708/files/41356030992.pdf
    • https://cdn.shopify.com/s/files/1/0440/5913/2054/files/kodefobesawaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0133/9304/files/8634382463.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/map_of_the_united_states.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/87543935686.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/datukojosute.pdf
    • https://cdn.shopify.com/s/files/1/0435/7410/0127/files/48339232963.pdf
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/vexugiwezofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/pibejinezep.pdf
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/goxifitevovilomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8250/5637/files/29632414349.pdf
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/90169573310.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_off00007af7.bin
cea291b0ddabfe33989583f781f8415fb6cbe40bc83a6eed4efd5e6225362328		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF7 4844 bytes
font_01_sfnt_off00008b67.bin
030c4d5b4a2f5bb956e5f09f20e8b461cbaf580986e90e315b498b5c85b30e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B67 10536 bytes

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