Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48e5b0a73811761…

MALICIOUS

PDF

44.7 KB Created: 2020-08-17 03:30:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3deee9dd28ad5275da3a6bb965fd8e67 SHA-1: 12e01cb9fb555f23ff4cd0409de1ce0764107dfb SHA-256: a48e5b0a7381176148d4234fbd9bc0fba99e27c8c1e3d1c22b881df47fde8aff
120 Risk Score

Malware Insights

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

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, specifically 'ttraff.cc'. The document body contains text related to movie downloads, suggesting a lure to entice users to click on these malicious links. No scripts were extracted from this sample, but the presence of numerous SEO-optimized PDF links and a malicious redirector strongly suggests a phishing or malware distribution attempt.

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.cc/pify?keyword=kadamban+movie+tamil+free
    • http://bigane.spectordance.org/uploads/1/3/2/8/132816202/zokim-ritivaj-sowomanis-sikiti.pdf
    • http://files.wisewomanliving.net/uploads/1/3/1/4/131453623/625741.pdf
    • http://files.frankshandymanserv.com/uploads/1/3/0/9/130969801/lubatupedisuve-xizekowitanipi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/toxoladosewuku.pdf
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/75285527109.pdf
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/monoriwinatogir.pdf
    • https://cdn.shopify.com/s/files/1/0444/5339/6647/files/jumemowefokegorubujoguso.pdf
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/67017554221.pdf
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/zebobefosazizufikikeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/3468/1250/files/85958589982.pdf
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/nvidia_driver_install.pdf
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/41898291825.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/google_doc_find_and_replace.pdf
    • https://cdn.shopify.com/s/files/1/0436/0024/8995/files/candidiasis_oral_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/6432/6309/files/82238138387.pdf
    • https://cdn.shopify.com/s/files/1/0428/9377/0919/files/husqvarna_51_parts.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/77081430413.pdf
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/catalizador_definicion.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_off00007222.bin
69597be61922f1f8b39b27dedc153eb3216ac40e98269e2f308ed1c737e42379
pdf-font-stream PDF embedded font (sfnt) at offset 0x7222 5044 bytes
font_01_sfnt_off00008341.bin
06ceb6aa1c551f78d593c0f008f908f90bbe580be29c5039a5fdc2eb884e4663
pdf-font-stream PDF embedded font (sfnt) at offset 0x8341 10200 bytes