Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a86f1876e7b4b6f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-01 17:20:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1a71858d8d2213a08905292e876e399 SHA-1: adc867e952d66edad8e2a72e02f08739b07f1850 SHA-256: 2a86f1876e7b4b6fc20c7d903c74f6341f2a7a9427d68107e562fc22ab7f3a79
150 Risk Score

Malware Insights

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

The PDF contains a lure for a "Window 7 retail key" and embeds a link to a redirector. This redirector, ttraff.com, is flagged as malicious and leads to further links, including one hosted on Shopify. The PDF also contains a large number of external links, suggesting a link farm for SEO poisoning or to distribute further payloads. 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=window+7+retail+key
    • http://files.familymatterseducation.com/uploads/1/3/0/7/130738568/b49edb455e3c21.pdf
    • http://files.immaculataschool.org/uploads/1/3/1/4/131408465/lukatudos_rifuxojesopipa_moxinix_jenopave.pdf
    • http://files.pqh.com/uploads/1/3/1/6/131606636/3097e58a.pdf
    • http://files.seamonkey.com.my/uploads/1/3/1/4/131483249/perilokitesu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6901/3144/files/jomojitepawutif.pdf
    • https://cdn.shopify.com/s/files/1/0438/4518/9794/files/sukumo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdf
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/jabakozinigexosabaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1669/9553/files/bazizemutow.pdf
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/litoxugejurolek.pdf
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/48064641197.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9949/files/57220522445.pdf
    • https://cdn.shopify.com/s/files/1/0439/3166/4552/files/98037788546.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/rutivosufekifataliva.pdf
    • https://cdn.shopify.com/s/files/1/0428/2646/5436/files/14252264807.pdf
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/visewajumemaxowapiwemaw.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_off000068b5.bin
24a82aad7f7873afa911ae1e083d2f33b2f6c0f5fb0f6cd73902868cde7e235d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68B5 4992 bytes
font_01_sfnt_off000079df.bin
294f170be7f86b9172b0c6a0310d0b4c325027c5e6033a5e161fff62c6c304f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79DF 9848 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.