Malicious PDF — malware analysis report

Static analysis result for SHA-256 45292ff77afcfc57…

MALICIOUS

PDF

95.9 KB Created: 2020-09-04 23:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ea64b3bc48108a33502bf141cb483d6 SHA-1: fcceba43e393c665b253c4bb4a297b1f9efd2446 SHA-256: 45292ff77afcfc570dad26a64b5208d85580072d59e802cdb3da951f2fd8df7d
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector. The document body, though heavily obfuscated, includes a URL that is also flagged as a malicious redirector. This suggests the document's primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing.

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.ru/pify?keyword=properties+of+cosmic+rays+pdf
    • https://static.usrfiles.com/ugd/3b7182_07dc66cfbaad466b9975107e007f0380.pdf
    • https://static.usrfiles.com/ugd/f1780b_8cd84751937c4e4f96c206b697b631a5.pdf
    • https://static.usrfiles.com/ugd/b97cba_29cea107f6c94173a0810c31338d29f5.pdf
    • https://static.usrfiles.com/ugd/b52961_3e9fffea86ba4ba6bf2bae8a8d2a1467.pdf
    • https://static.usrfiles.com/ugd/451461_01a63b007ee74ac580d7014e0dbda740.pdf
    • https://cdn.shopify.com/s/files/1/0461/7633/8073/files/material_safety_data_sheet_define.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/nifaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7861/files/android_automatic_messenger.pdf
    • https://cdn.shopify.com/s/files/1/0431/2724/2906/files/wulale.pdf
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/vudemamaxukodal.pdf
    • https://cdn.shopify.com/s/files/1/0430/4293/0842/files/nunazulegitenipozejita.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3386/files/company_profile_cover_word_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/3774/4534/files/rojujutija.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_off000139d4.bin
326486749cb8cab5ba50c4b2358e4277481d2e28e54db108edaf9c8554c38a49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139D4 5372 bytes
font_01_sfnt_off00014c0d.bin
45412a5f4992629639e1290040a2bcc82b0b1b96c2c54e73e644f85ee8f92f6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C0D 11344 bytes

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