Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d97e9623176e42e…

MALICIOUS

PDF

43.0 KB Created: 2020-08-30 21:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 018ec1b3274d892979bd631d974c2cd2 SHA-1: 3e277fa9b9339d8d6c59ebc8edfb842bf6c52c9f SHA-256: 8d97e9623176e42e74356af8410cfe23041114e379607b9475631c8501fdf3d6
150 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains keywords related to 'kalnirnay 2019 pdf free download marathi', suggesting a lure to trick users into clicking the malicious link. The primary malicious link identified is https://ttraff.link/wix?keyword=kalnirnay+2019+pdf+free+download+marathi, which is likely used to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=kalnirnay+2019+pdf+free+download+marathi
    • https://static.usrfiles.com/ugd/4dd980_ec69d670cc6f486781b913856f803aa5.pdf
    • https://static.usrfiles.com/ugd/c63dba_24530ffc245a42bbb8a0a5cee936f7d6.pdf
    • https://static.usrfiles.com/ugd/e33828_7c3a79e0f34b4f01aaf46713a8f21f9c.pdf
    • https://static.usrfiles.com/ugd/b910ae_5f7cf9a79bc34cdba51f2141db48937a.pdf
    • https://static.usrfiles.com/ugd/b8c837_709a31ecfa7e47c988565941733deeed.pdf
    • https://static.usrfiles.com/ugd/5ed537_97e546ed80f94cfda7bfd81656d3cc29.pdf
    • https://static.usrfiles.com/ugd/834936_d0e1fcd5c8c7430ba57ee5e1942cafb4.pdf
    • https://cdn.shopify.com/s/files/1/0432/9934/0448/files/good_luck_chuck_free_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0436/5287/4390/files/26989264393.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/juzijogaxeke.pdf
    • https://cdn.shopify.com/s/files/1/0439/8999/1582/files/esp8266mod_d1_mini_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/1615/1455/files/ap_sbtet_exam_time_table_2018.pdf
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/jikupinerigim.pdf
    • https://cdn.shopify.com/s/files/1/0440/4133/9030/files/71916012693.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_off0000595e.bin
24bd1bd7197a571fe1933b30ecb87a527cc64bb0609d153a55ba5a6a41cd8c1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x595E 5748 bytes
font_01_sfnt_off00006ce3.bin
405c00262108f2e2c2fc2fe90eff683d16d3d965e2b6170e26e8cf6f463e95d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE3 10016 bytes
font_02_sfnt_off00008f2a.bin
15a304d12d641acca19867c3af4592d7863d49439146c8fec1323357dd155940
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F2A 4160 bytes