Malicious PDF — malware analysis report

Static analysis result for SHA-256 499575472d6c67fa…

MALICIOUS

PDF

54.8 KB Created: 2020-08-07 02:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4eb47d040a8d6d393f15ccfa739baaef SHA-1: ddc8c0a1994caf150525ed63e828a1e9db8c39f9 SHA-256: 499575472d6c67fad93bc8ac3a2e9070d3f8f6bb47fdcc3ae6dd83bc15ae26a2
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.com/pify?keyword=african+society+and+culture+pdf. The document body itself contains garbled text but also includes the same malicious URL and numerous other PDF links, suggesting a link farm or redirection tactic to distribute further malicious content.

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=african+society+and+culture+pdf
    • http://files.ebchinese.org/uploads/1/3/0/7/130740458/jerutesupimukiz.pdf
    • http://files.imssb.com/uploads/1/3/1/3/131380480/196340.pdf
    • http://files.dishonouredmovie.co.uk/uploads/1/3/1/3/131384674/977536.pdf
    • http://files.greaterconcordinterfaithcouncil.org/uploads/1/3/2/3/132303219/xagamuvovowekuza.pdf
    • https://cdn.shopify.com/s/files/1/0430/4040/7701/files/gidanujibaniwuba.pdf
    • https://cdn.shopify.com/s/files/1/0439/1275/7400/files/tomey_optical_biometer.pdf
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/andhra_bank_account_statement.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/depilutubadiwutada.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8775/files/27591278896.pdf
    • https://cdn.shopify.com/s/files/1/0441/0625/2440/files/nifororeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/3188/8021/files/baditomefolino.pdf
    • https://cdn.shopify.com/s/files/1/0432/4494/5571/files/34744398103.pdf
    • https://cdn.shopify.com/s/files/1/0430/7868/0730/files/74343626020.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/pesowe.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_off00009411.bin
e6dc79f79dba3ce92d4b78119c193874e6012d996c000b65fdd22f385a1f8301		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9411 5240 bytes
font_01_sfnt_off0000a600.bin
b890a1a31fb449462ac5776277c9e52929b1e347f8fe031d6ba2a153c859ea9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA600 12492 bytes

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