Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed141b34bedfbfbd…

MALICIOUS

PDF

53.6 KB Created: 2020-09-18 18:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d8e3e20f60f033f99c091ba68d71999 SHA-1: 637db3bd7e4ce10be4997bae4d3f8acade02fcee SHA-256: ed141b34bedfbfbdd217570bd1deba28d53d5170a61adefae19299a44734998c
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, which is likely intended to lead the user to a malicious site. The document also contains a large number of embedded links, many of which point to benign PDF files, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.

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.club/wix?keyword=can+you+spot+the+scientific+method+worksheet+quizlet
    • http://files.xphotographymore.com/uploads/1/3/0/9/130969489/9b851d78.pdf
    • http://nililimu.kaysfitcafe.com/uploads/1/3/1/6/131637419/popunizima.pdf
    • http://files.andrewdeckergamedev.com/uploads/1/3/2/6/132695629/4c1b2eb.pdf
    • http://files.lenasboutiqueofsweets.org/uploads/1/3/2/7/132710779/xelepu.pdf
    • https://765af9c0-12b4-415c-9edd-c05e3d71e2b0.filesusr.com/ugd/e2c250_97e075728c764c889c4c60667444db37.pdf?index=true
    • https://fb01c66f-d14c-4ccf-ac3d-d54171951d12.filesusr.com/ugd/d90490_d92af420e0c541039f02067588898d3a.pdf?index=true
    • https://384da956-7c2c-456a-a652-a21fddd52fa3.filesusr.com/ugd/417718_e09dfb9e67fa4aaab674db9323064e47.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/acland_anatomy_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/trane_xe80_furnace_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/1484/8671/files/vonagisuvoxorolorewob.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/83602417129.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/kokakilalidewevata.pdf
    • https://cdn.shopify.com/s/files/1/0431/4578/9600/files/54301640050.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_off000092be.bin
fae5359097cc411d95fb3d13b980f1da408d6da132fb57d4a6c064a9b6aee903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92BE 5736 bytes
font_01_sfnt_off0000a630.bin
9c8e6eb6d9cd1afa221cdad29c00f89137b31e0a36103f3041a01eacfa4c2a7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA630 10288 bytes

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