Malicious PDF — malware analysis report

Static analysis result for SHA-256 a36a1698222863e6…

MALICIOUS

PDF

44.5 KB Created: 2020-08-27 14:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90f03801601cce4fb16da485df79e8e0 SHA-1: 088f819506dd4de90e2c156ac9fa45cd10cffa80 SHA-256: a36a1698222863e64cff24ee8b6a90e7f645a361ce8d459fc3ce456cf8dd78f0
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Tomb of horrors guide' and the malicious URL, suggesting a lure to entice users to click the malicious link. This indicates a likely 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.ru/pify?keyword=tomb+of+horrors+guide
    • http://files.beachtownrattan.com/uploads/1/3/1/4/131438819/dakemowiwuniv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/60853908982.pdf
    • https://cdn.shopify.com/s/files/1/0427/8992/9116/files/free_timesheet_calculator_with_breaks.pdf
    • https://cdn.shopify.com/s/files/1/0432/0254/3778/files/92559002561.pdf
    • https://cdn.shopify.com/s/files/1/0429/4751/0435/files/balance_sheet_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/80673598883.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/10411613837.pdf
    • https://cdn.shopify.com/s/files/1/0460/2694/8767/files/pirozidupuzexitejogo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/63334479786.pdf
    • https://cdn.shopify.com/s/files/1/0438/1877/8781/files/wazowerupari.pdf
    • https://cdn.shopify.com/s/files/1/0435/3366/4408/files/zowopub.pdf
    • https://cdn.shopify.com/s/files/1/0428/5743/1199/files/unaccompanied_trumpet_solos.pdf
    • https://cdn.shopify.com/s/files/1/0432/3206/7739/files/tifabuva.pdf
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/real_analytic_function.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_off00007033.bin
d7ce456fc3d9a20b00593a33ef17a55e08c01b09b2b94875fe18aaf9a2953c36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7033 5168 bytes
font_01_sfnt_off000081a7.bin
a0bc9838d3ccab453bde66a94efcbd46baa0df9640bc5d5ada052d15dde57089		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81A7 10456 bytes

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