Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d6209fb2524d37…

MALICIOUS

PDF

49.6 KB Created: 2020-07-27 20:05:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fb8d7a2c530304ee43cfe1930bc6b74 SHA-1: e17734bdaf8dea55dd4885db34ff713e7976a783 SHA-256: 32d6209fb2524d37207e500e204948d10b8d9435633faa4ab653b3e72f138b49
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating it's a malicious redirector. One of the primary links directs to 'ttraff.ru', a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'snake bite management'. The presence of a link farm further supports the malicious intent of driving traffic to external sites.

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=snake+bite+management+pdf
    • http://files.nicoleshanks.com/uploads/1/3/0/7/130776168/romomukepa-wifixufezodov-laguvi.pdf
    • http://files.nptg.org/uploads/1/3/0/8/130874627/ginuwoguw.pdf
    • http://files.purifoyfloweressences.com/uploads/1/3/2/6/132681495/potelabopolaxu.pdf
    • https://cdn.shopif
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/nepinemugewetol.pdf
    • https://cdn.shopify.com/s/files/1/0437/4721/3464/files/novuvaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/78516161259.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/mivita.pdf
    • https://cdn.shopify.com/s/files/1/0429/1212/0998/files/mosajaguwi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/zefezadulevezofu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/desexonalileluzis.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/49536452742.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/dupetirarajaxegunejikiro.pdf
    • https://cdn.shopify.com/s/files/1/0434/9945/4628/files/90232885568.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/relumax.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/69340759045.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_off0000856a.bin
ff3f2036168990d8b7d8eb335e55c403fa2007f0ea56fbf26975204baf5a1d7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x856A 5040 bytes
font_01_sfnt_off00009676.bin
c2025e6d981da5ae4fc1a364a452a152aa13a36b88436a1b21390ecb1f7e76e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9676 10428 bytes

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