Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e1232889781cc7f…

MALICIOUS

PDF

36.8 KB Created: 2020-08-19 03:16:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e92cd66039935ab08bab0224bd2bfbe SHA-1: 31289d6094290a08255ca86af9d0e855e23ebd98 SHA-256: 1e1232889781cc7fee14fa330262992555b5ed48a4caf1af9644290a365050fe
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=kdwin+armenian+keyboard', which is flagged as malicious. This suggests the document is designed to trick users into visiting malicious infrastructure, likely for further exploitation or credential harvesting.

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=kdwin+armenian+keyboard
    • http://wazonulo.lemonbayclaycenter.com/uploads/1/3/1/3/131383708/julaj-jefafewife-xidudogoxa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/29901677394.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/because_im_happy.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/minecraft_servers_0._12._1.pdf
    • https://cdn.shopify.com/s/files/1/0432/2128/7080/files/voxuxedazavamopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/16622162516.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/gijuvomixixil.pdf
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/89216688150.pdf
    • https://cdn.shopify.com/s/files/1/0435/2727/4645/files/silip.pdf
    • https://cdn.shopify.com/s/files/1/0434/9375/2997/files/68797052096.pdf
    • https://cdn.shopify.com/s/files/1/0440/6411/2805/files/daximaxu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/87257314850.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_off0000512f.bin
4ae5400f064287331e503d446c488c2ebcf5cb8cd64675d5cc3088b22a50f0fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x512F 5128 bytes
font_01_sfnt_off000062a0.bin
7b92d2793eb2a865ec02661fa63872a63c58aa1dc23822407843c791590e8ae6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A0 10760 bytes

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