Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dea2760fe8f1bac…

MALICIOUS

PDF

39.4 KB Created: 2020-07-29 04:53:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a0c8a87409509baf82ba47b4104de5 SHA-1: 92fa134fa3dd5dbebf5c1ffad9b0ea5efdd76c1e SHA-256: 3dea2760fe8f1bace231b20c25b97e681381e8dbeb6b598ada593b957b1a9eca
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external links, many hosted on Shopify. The document body, though heavily obfuscated, suggests a lure related to 'Guardian life insurance beneficiary designation form'. No scripts were extracted from this sample.

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.cc/pify?keyword=guardian+life+insurance+beneficiary+designation+form
    • http://files.travelventours.com/uploads/1/3/1/3/131380871/c50cee594ceb7d7.pdf
    • http://files.campeche-cove.com/uploads/1/3/1/4/131411688/063698e9864fa.pdf
    • http://files.templeemanuellongbeach.com/uploads/1/3/0/7/130776081/doburetodijab-jorul-zebute-basizimiw.pdf
    • http://files.travelventours.com/uploads/1/3/1/3/1
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/fasemeziroso.pdf
    • https://cdn.shopify.com/s/files/1/0429/3974/4419/files/99432594947.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/lasawopebogudisola.pdf
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/gikusiwofowevimemowapuka.pdf
    • https://cdn.shopify.com/s/files/1/0430/7851/6885/files/40499433048.pdf
    • https://cdn.shopify.com/s/files/1/0440/2737/9877/files/dabirexalo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7111/8235/files/wujapib.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/86177638616.pdf
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/napaxukumawunufikovo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/58881843789.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/kapesipapulodofelinegapul.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/78633740144.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/55978153901.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_off00005c47.bin
2f7db13b0fe15cc66ebdff146b787aa3498eecf0663d847e5fa1e165135b85a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C47 5496 bytes
font_01_sfnt_off00006ef1.bin
e0ad78d419f565bc03e52fde8665451623c5e69f286a64325de51b2326188998		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF1 9788 bytes

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