Malicious PDF — malware analysis report

Static analysis result for SHA-256 21de918ba6c694f2…

MALICIOUS

PDF

42.9 KB Created: 2020-08-23 02:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c0f6f82e4c2d59d3b2f61ac3da8f992 SHA-1: f51c1c3c85d046fe0ccb06ea022a1290d78ac636 SHA-256: 21de918ba6c694f2bf76a698ca9e33eafe19c907e5950a5efd3bf3c802a12bfc
160 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination. The document also includes a large number of links to other PDFs hosted on Shopify, potentially for SEO manipulation or to appear legitimate. The presence of a visible LOLBin command execution instruction suggests the PDF is designed to execute commands or download further payloads, though no specific script was extracted to confirm this.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=action+movies++website
    • http://magiwades.gaiabamman.com/uploads/1/3/1/6/131636644/gesipid.pdf
    • http://bofuso.derrickalstonphotography.com/uploads/1/3/0/7/130739430/4f71b2b790f38.pdf
    • http://files.murdermysteriesiom.com/uploads/1/3/1/4/131438509/baxavodadujajobivi.pdf
    • http://files.cooriecurls.com/uploads/1/3/2/3/132303035/susepotetupixe_pumof_fudezotisixi.pdf
    • http://jemul.nautiluscases.com/uploads/1/3/1/4/131406717/9094821.pdf
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/missile_war_minecraft_server.pdf
    • https://cdn.shopify.com/s/files/1/0431/2239/3244/files/saxamelapotivevolekorelep.pdf
    • https://cdn.shopify.com/s/files/1/0430/3755/6889/files/gaxosigapobawewebiruxiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2664/4125/files/94908428677.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/71074247741.pdf
    • https://cdn.shopify.com/s/files/1/0434/4188/1254/files/rudumuwimupezigelum.pdf
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/jenaralorawigebavajeselu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6767/0689/files/bent_over_row_workout_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/rivusijalelemuxogo.pdf
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/morphology_of_flowering_plants_class_11_ncert_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0434/3490/1671/files/best_minecraft_faction_servers.pdf
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/213037175.pdf
    • https://cdn.shopify.com/s/files/1/0428/5726/7359/files/business_accounting_and_finance_catherine_gowthorpe_download.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_off00006b23.bin
10d776aacaa196b7364e43c95642524d823a76ea2265a7603159dd04f9e5cb0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B23 4888 bytes
font_01_sfnt_off00007bc6.bin
141b1201abb02eee2f319b054be407eb1cb9b88f1f808cdf71e08af89608506f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC6 10204 bytes

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