Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3282b2686d4b27…

MALICIOUS

PDF

52.1 KB Created: 2020-09-02 03:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f266ea407e02e916badb04c5152ea40 SHA-1: 66b8b16b637d3e45abcca69f141bb1cecda2ac53 SHA-256: 7d3282b2686d4b27ed3d3d5afd539b21bc63c88880a3bb488ccba3954c56e0d7
130 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'passport application form' and a URL that matches the malicious redirector. The presence of a link farm on Shopify indicates an attempt to distribute malicious content through seemingly benign platforms.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wix?keyword=dfa+passport+application+form++2018
    • https://cdn.shopify.com/s/files/1/0433/6310/6968/files/jajib.pdf
    • https://cdn.shopify.com/s/files/1/0430/8113/8343/files/65528644624.pdf
    • https://cdn.shopify.com/s/files/1/0431/6512/2720/files/kegixosobinugewiz.pdf
    • https://cdn.shopify.com/s/files/1/0436/0660/5981/files/72591809142.pdf
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/68374146644.pdf
    • https://static.usrfiles.com/ugd/c8a981_72595a53f04f4ec08f7bb0c8bf268b7d.pdf
    • https://static.usrfiles.com/ugd/26938b_e0c7568a501c41cfb2ff15c3cecea7f8.pdf
    • https://static.usrfiles.com/ugd/83e24f_6ba175ec44f147dbaf4e3009986b8d44.pdf
    • https://cdn.shopify.com/s/files/1/0463/3228/0994/files/cat_analytical_reasoning_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/3287/7976/files/9923153818.pdf
    • https://cdn.shopify.com/s/files/1/0436/7994/0761/files/misunupidikuvo.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_off00008bf8.bin
0777171b94c2b892db66c615ea693b9b9e91e1bb5b1babda1e9533eaf1ed27c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF8 5680 bytes
font_01_sfnt_off00009f44.bin
90ae23ec336e919474ae7f699698582c20f8798694fde189aeab1653b46bd4a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F44 10568 bytes

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