Malicious PDF — malware analysis report

Static analysis result for SHA-256 f69faf14c8a5e532…

MALICIOUS

PDF

108.6 KB Created: 2020-08-10 03:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e3528c51f381ed6ddff926c5ebfbf27 SHA-1: 24f016eca73751b4e1722e76c6b2b25e1da2ef96 SHA-256: f69faf14c8a5e5322cf8dbe07648580d31d86e751a5d95826c678d1300f1797a
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to redirect the user to a malicious site, likely for phishing or malware delivery. The presence of a link farm further supports a malicious intent to distribute links.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=freshwater+bryozoa+pdf
    • http://files.vbtherapist.com/uploads/1/3/1/0/131070469/razekuva.pdf
    • http://files.pipproject.org/uploads/1/3/0/9/130969865/8666317.pdf
    • http://files.laurirakoff-chertok.com/uploads/1/3/2/6/132682851/73788e2d72b.pdf
    • https://cdn.shopify.com/s/files/1/0436/1990/9794/files/xanipurixatakorito.pdf
    • https://cdn.shopify.com/s/files/1/0437/8096/4509/files/vixemuditefuwix.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/41912075521.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/72939497218.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21086069096.pdf
    • https://cdn.shopify.com/s/files/1/0441/3220/4696/files/19575273305.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/livevusimomunipozera.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/fanudelulasuse.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9959/files/how_to_mod_a_ps3.pdf
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/zilibolagorakonor.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_off00015fd6.bin
94a8c9e32c09cca5271ad5832c2f18d6b92d9cd3d256e5f753a27403aa1988fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FD6 5436 bytes
font_01_sfnt_off00017265.bin
423b883613f9711ee00c1af836fc994a935659a3d09d5020b64e4ef83e08fd98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17265 1716 bytes
font_02_sfnt_off00017b0c.bin
86c42819420b85edb0482dd79cf3fe2da280036045088bc5e9437f053f85a9e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17B0C 12520 bytes

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