Malicious PDF — malware analysis report

Static analysis result for SHA-256 53f34b6d57ae5af0…

MALICIOUS

PDF

48.2 KB Created: 2020-08-22 01:50:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95cd7dcaedada33ed4b9389e2021c216 SHA-1: 58c709ffe09c2cf75dee0ac06c932e68cea7f788 SHA-256: 53f34b6d57ae5af0e94aa756719ac93b431fe4a80d087bd397bdf4c831acb8eb
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This link is presented in the document body, suggesting a lure to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to obscure the malicious redirector. No scripts were extracted, but the primary malicious activity appears to be the redirection to the 'ttraff.com' URL.

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.com/pify?keyword=2012+chevrolet+malibu+service+manual
    • http://buxitisow.stmaryslibrary.org/uploads/1/3/0/8/130813714/wotakatanosaze.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/agriculture_books_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/pibulujepudotupozaxovir.pdf
    • https://cdn.shopify.com/s/files/1/0448/0807/7473/files/sap_basis_tutorial_for_beginners_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/32699199727.pdf
    • https://cdn.shopify.com/s/files/1/0431/2819/3186/files/bakamitilifeta.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/management_accounting_and_control_system.pdf
    • https://cdn.shopify.com/s/files/1/0433/2558/7609/files/agriculture_biologique_en_tunisie.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/daxomujazoladi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/biodata_form_file.pdf
    • https://cdn.shopify.com/s/files/1/0449/6569/1560/files/xuvegajigozitokeditezimi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9997/9930/files/bugapegoji.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005adf.bin
c376fb7d7535f5ba71d8e79c78cba4dc9efc7a5032d4eed2fbc7509f63d916a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADF 5468 bytes
font_01_sfnt_off00006d4d.bin
9c3c88facb22dc2b954bb970589f8b7879a6119a8e31ccd496a77e5bcbcf86e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4D 15936 bytes
font_02_sfnt_off00009eb8.bin
ebb3694421a43278983d451c211ba9fd485eb15a70aaf5b2bf631a4dd7ab49b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB8 16208 bytes

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