Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f58a17593edb5f…

MALICIOUS

PDF

41.4 KB Created: 2020-08-02 15:19:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b60ac1f24cc7cbc4b2b883952f5a2e4 SHA-1: e0d8e86fca7acff557dfe2c0a40389fe2bacf02d SHA-256: 49f58a17593edb5f6c3e8235407a08d686bbe6d75d4df2a19f320ca83b93dc27
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.ru/pify?keyword=midland+walkie+talkie+manual`. This indicates the document is likely part of a phishing or malware distribution campaign, using the guise of a manual to trick users into visiting malicious infrastructure.

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=midland+walkie+talkie+manual
    • http://files.ditrfindingthespiritinme.org/uploads/1/3/0/9/130969185/jatizikikoba-winegunabu-jusiwa-sojelodosamob.pdf
    • http://files.rollingstonepens.com/uploads/1/3/1/4/131438025/mukolipejuzegifufeme.pdf
    • http://files.vogelsangartwork.com/uploads/1/3/1/4/131453256/1c9c630496c9.pdf
    • http://files.maryslittlegems.com/uploads/1/3/2/6/132695455/7acf691dcfa64b4.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdf
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/kuxisedufadu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/zilogasosobelo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5544/7202/files/suwawamarufor.pdf
    • https://cdn.shopify.com/s/files/1/0429/0225/7823/files/82817747079.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/76344097480.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/92640138125.pdf
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/biviro.pdf
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/89373315635.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/29132271583.pdf
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/wii_operation_manual.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_off00006499.bin
30b56bfb9540c357424732aa23f0371e656d1a680a3ebaa66a0fedaa3d7e540c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6499 4860 bytes
font_01_sfnt_off0000752c.bin
92102106f8a23667822c60e84bd1ebc99f201a1e96c61d45613bb9b9f3f1786d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x752C 10344 bytes

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