Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a80a111af177ec5…

MALICIOUS

PDF

47.1 KB Created: 2020-08-08 01:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcaac70decc1ba022a62da546c69887a SHA-1: 3da9740c294a0d81afa072bb15b97578fa700b2c SHA-256: 3a80a111af177ec5ce0c578498a46bad1faf7d065cc3dc83826971370ab2fc70
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary link identified, https://ttraff.com/pify?keyword=ecological+perspective+in+social+work+pdf, is flagged as malicious. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to trick the user into visiting this malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=ecological+perspective+in+social+work+pdf
    • http://files.rorymichelle.com/uploads/1/3/1/3/131382595/gesesowopojipetagal.pdf
    • http://files.jodyrathgeb.com/uploads/1/3/2/7/132740614/2810440.pdf
    • http://wekudoxi.biocompositesgroup.com/uploads/1/3/1/4/131408738/1ded3bde133833e.pdf
    • http://files.liveandletdieshow.com/uploads/1/3/1/4/131409009/zuzikal.pdf
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/twic_card_application_forms.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/50889402601.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/nojakitu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9619/3686/files/xikulibe.pdf
    • https://cdn.shopify.com/s/files/1/0436/0847/3763/files/medan_magnet_pada_solenoida.pdf
    • https://cdn.shopify.com/s/files/1/0439/0679/3627/files/bubatosuzilu.pdf
    • https://cdn.shopify.com/s/files/1/0439/7678/6078/files/74386518026.pdf
    • https://cdn.shopify.com/s/files/1/0432/9380/2646/files/66490733255.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/58347624881.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3630/files/sibodapi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6128/7839/files/fesetubividefufopexub.pdf
    • https://cdn.shopify.com/s/files/1/0429/5042/6787/files/beautiful_creatures_book_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/wuxewifoxuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/3725/3023/files/international_financial_management_madura.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_off00006ce9.bin
b0e1d4132fa58010bca63ab64cfc05d39a4edd8e19119190ce6b7b52e2f25279
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE9 5284 bytes
font_01_sfnt_off00007f01.bin
2b4b3c33c1941771f657d15858eba73aba883ab9fe96a27fc24969843e58d1b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F01 9928 bytes
font_02_sfnt_off0000a103.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA103 4324 bytes