Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32980a5d5b99637…

MALICIOUS

PDF

39.9 KB Created: 2020-08-30 12:05:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e19d865bfa3174002dd126e28d7a3ae SHA-1: 5ed69a8923e1a2691e0f8842c6b15b0b0ceb8bdc SHA-256: b32980a5d5b9963727b9e65a788b528be6ca3e1668090aa32695e6f8bd450db7
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Cursive tracing sheets' and the malicious URL, suggesting a lure to trick users into visiting the redirector. The PDF's structure and link farm indicate a phishing or redirection attempt.

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/wix?keyword=cursive+tracing+sheets
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/vumadu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2894/5819/files/vepupexov.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/rajubojesutakiko.pdf
    • https://cdn.shopify.com/s/files/1/0431/4474/1024/files/81159236673.pdf
    • https://static.usrfiles.com/ugd/b8c837_be0ec9187d7547169cc924ad384d5531.pdf
    • https://static.usrfiles.com/ugd/b8c837_2834bcfd68bd46e392f192ff386ad85c.pdf
    • https://static.usrfiles.com/ugd/b8c837_81d617f85a66486da067242511db2bf0.pdf
    • https://static.usrfiles.com/ugd/63022f_292b3c6defb1400a8c8f0fd5265471c2.pdf
    • https://static.usrfiles.com/ugd/b8c837_664361dce9974642b505ccc14f54d4f4.pdf
    • https://cdn.shopify.com/s/files/1/0430/9067/3813/files/zowinutu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/lixapibubufelelakixik.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_off00005f4c.bin
93abcb24abd961401c0eed858fb5a7472735bfc551b469bd56da986c105c671c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4C 4996 bytes
font_01_sfnt_off00007045.bin
884f03049d8dce5275c3ca5dd6ecfba44d278c7d45a4596d32712db60c0b6f15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7045 10104 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.