Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dec06aff7c35c55…

MALICIOUS

PDF

59.1 KB Created: 2020-08-29 05:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf7072499939e7d56126f2bf87245534 SHA-1: 8ccc475a5c14c58de5e2e578b81d04754cbcaced SHA-256: 8dec06aff7c35c55671f1c303ead3d39321fff10ac4fa9803a85272314b4c60d
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.ru/wix?keyword=jaoon+kahan+bata+ae+dil+movie+download' is presented as a lure for movie downloads, likely to redirect users to a malicious site or download unwanted files. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, though one specific redirector URL is flagged as malicious.

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.ru/wix?keyword=jaoon+kahan+bata+ae+dil+movie+download
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/reading_skills_file.pdf
    • https://cdn.shopify.com/s/files/1/0431/4641/2188/files/curse_of_the_crimson_throne_anniversary_edition.pdf
    • https://cdn.shopify.com/s/files/1/0459/9912/8735/files/mukowowe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/dibob.pdf
    • https://cdn.shopify.com/s/files/1/0428/6591/8118/files/24202138263.pdf
    • https://cdn.shopify.com/s/files/1/0433/8063/7859/files/55327344081.pdf
    • https://cdn.shopify.com/s/files/1/0434/1504/4252/files/vabefi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9430/2115/files/splunk_regex_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/5506583541.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/36032935361.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/how_to_extend_centos_root_partition.pdf
    • https://static.usrfiles.com/ugd/b8c837_4cb3ad1242f04be28a2eabfdc0afa6fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_0e07668e1ce740638d2bf153e34a7753.pdf
    • https://static.usrfiles.com/ugd/b8c837_a5a181c2bc82456cb8ef9f92aba95de0.pdf
    • https://static.usrfiles.com/ugd/b8c837_d489e6abb2dc4a3fb588288346111492.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060c4.bin
4046d053e8b9cab12441a11c08c6ec793fc67a7567080e253f8058d38f65bd6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C4 5136 bytes
font_01_sfnt_off00007228.bin
25d2fbfb5dd46bce752f1a10cbb8fe29a5ece10bd9e4a33cfa5ea6c363d8700b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7228 20968 bytes
font_02_sfnt_off0000925b.bin
fc56fa02dbe3458291c5fb7062dec2b01f2226dd21b4eff9ce88880a69c4a691		 pdf-font-stream PDF embedded font (sfnt) at offset 0x925B 2276 bytes
font_03_sfnt_off00009c25.bin
4bcf1c38df3dea99f9a57d86dfbd4e9518ec2d2cf64149ff0ffc04e32b349880		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C25 10460 bytes
font_04_sfnt_off0000bfcf.bin
589f2a64e89766a8ae62896ea8444fa1a87810255c984bbc4fd2a260c4929d56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFCF 2056 bytes
font_05_sfnt_off0000c8be.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BE 16164 bytes

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