Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e90ca3b420a1382…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 20:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02e954d6a57743064ae63716498d6de5 SHA-1: 1b4632455a6fefdaa82eceb52b5a95d577838604 SHA-256: 2e90ca3b420a1382269111a6d02d9d16ce2976a4c2bcd5ed79c5508602325f60
150 Risk Score

Malware Insights

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

This PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=eulogy+template+word'. The document body also contains this URL, suggesting a lure to download further malicious content. The presence of a PDF link farm further supports the malicious intent.

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.ru/pify?keyword=eulogy+template+word
    • http://files.cmcgeewrite.com/uploads/1/3/1/4/131438437/050a3.pdf
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/57635628750.pdf
    • https://cdn.shopify.com/s/files/1/0459/5318/7999/files/azhage_azhage_kathakali_song_karaoke.pdf
    • https://cdn.shopify.com/s/files/1/0429/8113/0394/files/jowipomigasowakumeso.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49470024852.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/81470308498.pdf
    • https://cdn.shopify.com/s/files/1/0430/9604/7783/files/64293710162.pdf
    • https://cdn.shopify.com/s/files/1/0450/1107/5222/files/patologi_anatomi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/physiological_role_of_auxin_in_plants.pdf
    • https://cdn.shopify.com/s/files/1/0428/9776/8614/files/gajujupiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.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_off000063a2.bin
d2ae4492cc7671461fcbe8b900e6143bf2b0932aa438b59359bc0a200b133aee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A2 5252 bytes
font_01_sfnt_off00007585.bin
bbe20eec393b9170e469d0aed1d0ca352744aaa7704fa26437e7b2a2eb01163b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7585 10224 bytes

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