Malicious PDF — malware analysis report

Static analysis result for SHA-256 d56e214284c26e3e…

MALICIOUS

PDF

39.8 KB Created: 2020-08-02 07:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0b0d5e48598450e632151a5d96a3ec3 SHA-1: 9c88aaf79de33eaefe151c7e3f848c1459193691 SHA-256: d56e214284c26e3ef909398211fa2e339d4a0b54a862c2222a37ba12095d4abf
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one pointing to a known malicious redirector. The document also features a link farm of SEO-optimized PDFs hosted on Shopify, suggesting a campaign to manipulate search results or distribute further malicious content. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=sample+snapjaw+shell
    • http://files.shenmindandbody.com/uploads/1/3/0/9/130969656/81b13bda310867.pdf
    • http://files.tinagutierrezartsphotography.com/uploads/1/3/0/7/130775383/remax-taxopugazaledu-fuluxibejurifuj-lavosiraleset.pdf
    • http://files.wapisfortheworld.com/uploads/1/3/1/3/131379268/visevepe.pdf
    • http://files.rkarimitherapy.com/uploads/1/3/1/4/131453484/a839d.pdf
    • http://files.glyniskozmacoaching.com/uploads/1/3/1/4/131408017/zotodavafa-jaweger-rudarufanuwa-bekodorogip.pdf
    • https://cdn.shopify.c
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/94175697399.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/xasidavorinabekisup.pdf
    • https://cdn.shopify.com/s/files/1/0436/2915/0368/files/91621135058.pdf
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/75413635080.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/98837426039.pdf
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/puvuvifajazakudevofawu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/jemopukukijebedexizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/zazujilas.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8333/files/98933670441.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9863/files/dajujebufufapugawize.pdf
    • https://cdn.shopify.com/s/files/1/0435/4883/6004/files/wilaga.pdf
    • https://cdn.shopify.com/s/files/1/0428/2246/7750/files/daxabepusigifaginamudixe.pdf
    • https://cdn.shopify.com/s/files/1/0440/6283/4853/files/zefamowalap.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_off000050d5.bin
eef89db870eea5cf73fc2011dd986955e221c6c24f703d147e3cc54ee1af61b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x50D5 4784 bytes
font_01_sfnt_off000060ec.bin
c2565c3429db8a455148d4fca8039b20c2deb29b5ca2deac061e7cff2580bad8
pdf-font-stream PDF embedded font (sfnt) at offset 0x60EC 10336 bytes
font_02_sfnt_off00008414.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x8414 4324 bytes