Malicious PDF — malware analysis report

Static analysis result for SHA-256 be965644300221c0…

MALICIOUS

PDF

41.4 KB Created: 2020-08-01 22:50:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b5843b6945ee88c222239b4c2e37d70 SHA-1: ea6f63065bb3f365e4cbf40be7d0c8d0797c6abf SHA-256: be965644300221c0531dba41130ba1cc65f14ef9689262c9192a54dbc44b1f44
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, suggesting an attempt to create a link farm or distribute malicious content through seemingly legitimate platforms. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic, reinforcing the attack pattern.

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=amazing+grace+by+mary+hoffman+pdf
    • http://files.maureenriley.org/uploads/1/3/1/6/131607054/bunudimiwa-zojiba-ruxuk.pdf
    • http://files.autovairavimas.lt/uploads/1/3/1/4/131482823/jopiva-batizesoga-bogil.pdf
    • http://files.mobilelearningtoolkit.com/uploads/1/3/1/4/131438641/doruwerumadovo_figebiv.pdf
    • http://files.lyricsandpoems-cacreed.com/uploads/1/3/0/8/130813821/6881740.pdf
    • https://cdn.shopify.com/s/files/1/0437/5085/0714/files/feroxesasevamegunedumizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9028/8535/files/deragewuvij.pdf
    • https://cdn.shopify.com/s/files/1/0431/7642/7686/files/44688000105.pdf
    • https://cdn.shopify.com/s/files/1/0432/4537/1549/files/xujixabazepupuwiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98690712505.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/bazulon.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/xejukan.pdf
    • https://cdn.shopify.com/s/files/1/0427/3415/7991/files/xanaluvavugosovaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/pabexa.pdf
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/pexigobesuzaba.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/1852042183.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_off00006242.bin
35b93dcb48e4125d01c0070eaa9f3d86a424823f1849523ce005aa1426b255bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6242 5640 bytes
font_01_sfnt_off00007555.bin
f93d401faec9807ca1b5c2c30d7981c72e1209b3ab5c118046d70c5dbbf1018d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7555 10272 bytes

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