Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d2a72021a5173ec…

MALICIOUS

PDF

51.8 KB Created: 2020-08-30 06:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a17be71a11355a70e67cc9f6e815120 SHA-1: 068c75346e3e809a861c6a6fbb4ded7a84f0ad0f SHA-256: 9d2a72021a5173ecc163e7d00b4977a840b1d56c6731ade23933455c3787a543
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=sculpture+painting+evgenia+ermilova'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0429/8991/2218/files/4839420721.pdf'. The document body, though partially corrupted, contains the same redirector URL, suggesting a social engineering lure to a malicious site.

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/wix?keyword=sculpture+painting+evgenia+ermilova
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/4839420721.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/xezexorurovototig.pdf
    • https://cdn.shopify.com/s/files/1/0430/9437/6599/files/quaker_rice_cakes_chocolate_nutrition_information.pdf
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/detigireguri.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/libil.pdf
    • https://cdn.shopify.com/s/files/1/0437/6923/3557/files/rojukafafozajezaxipovek.pdf
    • https://cdn.shopify.com/s/files/1/0428/7673/1558/files/tonedizafakagonupevubuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5397/files/viwezebivutewigopug.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/wazupigasedelepafevuve.pdf
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/chart._js_tooltip_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/9534/9666/files/python_ordered_set.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajakeveposemilakojataza.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066a4.bin
76d5deb73066055047940115b556278868a45eb13af7a0d164e5cf0675d0e81c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A4 5120 bytes
font_01_sfnt_off000077f8.bin
93de039bcedc810965584eb196b8d670a3ac66cf0f67500b49b6a293c9f3050c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77F8 10672 bytes
font_02_sfnt_off00009c80.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C80 16164 bytes
font_03_sfnt_off0000b195.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB195 4324 bytes

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