Malicious PDF — malware analysis report

Static analysis result for SHA-256 e692f2e07353ced4…

MALICIOUS

PDF

42.2 KB Created: 2020-08-19 03:02:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d896a241cfe0d3afb29a18415642b046 SHA-1: 4329858e09e76b9afc1a6f5a6092bf04d11a6704 SHA-256: e692f2e07353ced439022d07454f37f8c5ffd407437acdade4dc1faa4ff87a5c
140 Risk Score

Malware Insights

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

The PDF contains a lure impersonating a cloud document, directing the user to click a link. The primary malicious link, 'https://ttraff.com/pify?keyword=java++file+from+google+drive', is identified as a malicious redirector. The document also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning or traffic redirection. No scripts were extracted, but the presence of a malicious redirector and the cloud document lure strongly indicate a phishing or malware delivery attempt.

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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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=java++file+from+google+drive
    • http://madelu.jillbradburn.com/uploads/1/3/1/4/131438437/172398.pdf
    • http://dalozino.kookykrayons.co.uk/uploads/1/3/2/3/132302921/1d283e.pdf
    • http://files.ciwatch.net/uploads/1/3/1/4/131437491/8527387.pdf
    • http://files.adibartolopercussion.com/uploads/1/3/0/7/130776350/7a3e1a01cd4943.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6161/files/palofazovar.pdf
    • https://cdn.shopify.com/s/files/1/0434/3323/0488/files/14800664739.pdf
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/seladabuxibi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7817/3343/files/jofemixazanidulagogurub.pdf
    • https://cdn.shopify.com/s/files/1/0431/8507/8434/files/causes_and_consequences_of_obesity.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/35277742025.pdf
    • https://cdn.shopify.com/s/files/1/0432/6631/0299/files/nigikanoziwutiwapedofaxik.pdf
    • https://cdn.shopify.com/s/files/1/0431/0731/9965/files/47145371306.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/54600247066.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_off000066d7.bin
5cb5f1984034edee44fdb9b390479b0d2a5cffd6b907c02650de4f919fb53837
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D7 5100 bytes
font_01_sfnt_off00007823.bin
1185ed677eb0d30085beb043feeab4e48d332bd0749969c5c8b602646465c9f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 10620 bytes