Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22b2972055064fc…

MALICIOUS

PDF

43.5 KB Created: 2020-08-08 06:40:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f10ffeec5d305a6af60b635fc53f6b3e SHA-1: 1ec503085bef8233e589ebfc3a69fe022d6bf995 SHA-256: e22b2972055064fc6d650cba736d88f7c124a0bd65cf8e70e786f58f5dfe3fb2
130 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of external links, many hosted on Shopify, suggesting a link farm designed to obscure the true destination. The document body, though heavily obfuscated, contains a URL that matches the redirector link found in the heuristics. The presence of a download button lure further supports a malicious intent to redirect the user.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=world+map+with+countries+names+and+capitals+pdf
    • http://files.elitelaurel.com/uploads/1/3/1/1/131163578/507eb00.pdf
    • http://files.pegasus-software.co.uk/uploads/1/3/0/8/130874102/8a63d37fd8181c0.pdf
    • http://files.cetlgroup.org/uploads/1/3/2/8/132814123/woraxorivawo.pdf
    • https://cdn.shopify.com/s/files/1/0439/6302/3518/files/josupupozowisawirifaruwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/rukegoxopum.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46283819311.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58085676994.pdf
    • https://cdn.shopify.com/s/files/1/0440/4995/7029/files/39930926335.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/32561884515.pdf
    • https://cdn.shopify.com/s/files/1/0431/4680/5408/files/borezolex.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/11094173005.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/blacksmith_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/ziminasebidologaxez.pdf
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/76129898349.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/56838404978.pdf
    • https://cdn.shopify.com/s/files/1/0429/2080/4518/files/musunota.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_off00006bec.bin
e0478438a360c2aab008d3e5080ed702518265584d79152056472975483d9324
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEC 5500 bytes
font_01_sfnt_off00007e88.bin
033d3349dbcf11099231d29cd3bff1f1ca96b451da3f238826970c0e05a10340
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E88 9992 bytes