Malicious PDF — malware analysis report

Static analysis result for SHA-256 d02041c9be4b93bf…

MALICIOUS

PDF

47.5 KB Created: 2020-07-30 20:40:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64f2a4b6c93cee38b0a338a9f39d69cc SHA-1: d75a79c1c088f4c0a0226a4eb7e42ec32a9f8623 SHA-256: d02041c9be4b93bf1ea7cf188b1f41443f34a72eb3d164f3203fbb0c21f98329
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. One such link points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a '2020 tamil monthly calendar pdf download', suggesting a lure to entice users to click the malicious links.

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=2020+tamil+monthly+calendar+pdf+download
    • http://files.baystategalvanizing.com/uploads/1/3/0/9/130969663/1108831.pdf
    • http://files.suzannemcnallyphotography.com/uploads/1/3/2/8/132814305/9788145.pdf
    • http://files.katesclosetconsignment.com/uploads/1/3/1/3/131381021/933922937fcb410.pdf
    • http://files.casinodealerswebsite.com/uploads/1/3/1/4/131437513/merij.pdf
    • http://files.qrleadershipgroup.com/uploads/1/3/2/6/132681579/temanopaxumakukexe.pdf
    • http://files.katesclosetconsignment.com/uploads/1/3/1/
    • https://cdn.shopify.com/s/files/1/0431/6125/6091/files/dejenubuwujaletik.pdf
    • https://cdn.shopify.com/s/files/1/0431/3799/0813/files/40820626497.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25696514874.pdf
    • https://cdn.shopify.com/s/files/1/0429/6212/4959/files/movamemutal.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/pitifazanavuvub.pdf
    • https://cdn.shopify.com/s/files/1/0433/4105/4105/files/37908909026.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/99572855205.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/88810374084.pdf
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/xavomos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0361/7173/files/90678758268.pdf
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/tavuvazuluxonozovu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6187/0746/files/74384229580.pdf
    • https://cdn.shopify.com/s/files/1/0440/4926/8886/files/71683533307.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_off00006ae5.bin
99adfc42963c93b392b8effdd63016feb2a64e5d6d822b54d988855235e3e7fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE5 5380 bytes
font_01_sfnt_off00007cf9.bin
060fd2b3198a7a7aaaeee7d53f809a2065d6f657c5598b11c87a7930c278b26d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF9 5108 bytes
font_02_sfnt_off00008eb1.bin
6e1d672b3c5b52fcb9b345a3a0fa153192dc56a669ece4c3008d9479eb4175e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB1 9884 bytes