Malicious PDF — malware analysis report

Static analysis result for SHA-256 c508ffe0ee2fe114…

MALICIOUS

PDF

47.3 KB Created: 2020-08-14 11:40:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ae3f4cbc5df64effd6e92d5999e6c89 SHA-1: 453f707ec96bedfdd0aa804b70bef3c981edccfc SHA-256: c508ffe0ee2fe11452c7c6c3989436bb54d25d41c8d11b305abc79af87a65f64
120 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking title, suggesting a lure to disguise the malicious intent. The primary attack pattern involves tricking users into clicking the malicious link under the guise of accessing resources related to "SAP Crystal Reports for VS 2017". 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.com/pify?keyword=sap+crystal+reports+for+vs+2017
    • http://zaluwukew.finnmarkexpedition.co.uk/uploads/1/3/1/4/131406717/5228408.pdf
    • http://files.ccusbcnv.com/uploads/1/3/0/8/130814297/7fe735b363ece.pdf
    • http://files.pierolorenzorealtor.com/uploads/1/3/2/8/132815123/c982b790bde3.pdf
    • https://cdn.shopify.com/s/files/1/0436/4029/1486/files/jadinumotabulodikonil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/vafalokiwijukekopo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4855/9004/files/76380988095.pdf
    • https://cdn.shopify.com/s/files/1/0430/1848/5923/files/pobusesexowa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/25668779603.pdf
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/jaruz.pdf
    • https://cdn.shopify.com/s/files/1/0447/6112/0919/files/php_if_else.pdf
    • https://cdn.shopify.com/s/files/1/0435/7252/7267/files/54900024893.pdf
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/tuzaketodaxotaf.pdf
    • https://cdn.shopify.com/s/files/1/0430/2821/8019/files/whirlpool_washing_machine_manual_spanish.pdf
    • https://cdn.shopify.com/s/files/1/0431/1236/6229/files/21174711151.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_off000068be.bin
526c5a2175551476bef9e67e23fc16d118bda5f5d89964818a68e3a853678add		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BE 6476 bytes
font_01_sfnt_off000078c5.bin
f55ede67f6efdc4bbb67f76030db72fc99cfdbd19b19fa65aba4b548cd9083df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C5 5680 bytes
font_02_sfnt_off00008c41.bin
9f317a066e67c3290b106d9258a990f1c0c3e207ec03af51e719df63956ff2ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C41 10468 bytes

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