Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae18ae892d14dfd3…

MALICIOUS

PDF

48.2 KB Created: 2020-09-02 03:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 556136cc0e9bc78c5459ca3a91a1f38a SHA-1: 1f51aa36fbf0346034925333662615e63a394c6b SHA-256: ae18ae892d14dfd381a669e80207500fc32c399ec8596672755803d84b86bfed
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL is https://ttraff.link/wix?keyword=online+video+calling+app+for+android, which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains this URL and other links to PDF files, suggesting a coordinated effort to distribute malicious content.

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.link/wix?keyword=online+video+calling+app+for+android
    • https://static.usrfiles.com/ugd/2b25e8_109f1f598547491cb790db37698d7d2f.pdf
    • https://static.usrfiles.com/ugd/b8c837_abe6bba0a8304adcb885ee555a61a8ab.pdf
    • https://static.usrfiles.com/ugd/bcd086_81d2197a5849445bad93e671aecaa94a.pdf
    • https://static.usrfiles.com/ugd/b8c837_43fe0ef8dcfa4db6a0b40809eaddfa02.pdf
    • https://static.usrfiles.com/ugd/7c30af_237c1f1bf7644913813eb671509ef1b7.pdf
    • https://cdn.shopify.com/s/files/1/0434/4958/1724/files/aircrack-_ng_cap_file.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/23430195416.pdf
    • https://cdn.shopify.com/s/files/1/0434/5026/9849/files/lanvin_shoe_size_guide.pdf
    • https://static.usrfiles.com/ugd/b8c837_d952017713bc475385a68baaf43b0e80.pdf
    • https://static.usrfiles.com/ugd/5a1791_447b171b3e1a4c499831be39ac79fdf9.pdf
    • https://static.usrfiles.com/ugd/83d902_5fe1f59cdfd7488c8552464789417f0e.pdf
    • https://static.usrfiles.com/ugd/e745be_f6403a7d5b554dc4b475d82b4b777825.pdf
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/pdf_booklet_creator_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/0934/2614/files/tusas.pdf
    • https://cdn.shopify.com/s/files/1/0428/8223/6572/files/86587720963.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007126.bin
aea16e8cc9913f2012a5f4dffa601ee1763fd7daf906abebc94c542a256a200f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7126 4940 bytes
font_01_sfnt_off00008202.bin
45b970120bc257f18b5354630295d4dca29a986f23b58022e71706715b25ef49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8202 10348 bytes
font_02_sfnt_off0000a55c.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA55C 4324 bytes

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