Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bae91ffa68164db…

MALICIOUS

PDF

38.0 KB Created: 2020-08-31 20:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bdc4709a2ed23e21edac099d60908e3c SHA-1: 1e42447b97fe914be69f19b651b10d82caeb72a9 SHA-256: 2bae91ffa68164db314fe6e2d4d3211d14d50245f2b2d11f968f4605aba29ebc
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external PDF links, indicating a potential SEO manipulation or content hosting scheme. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of the malicious redirector suggests a delivery mechanism for further malicious content.

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.com/wix?keyword=krishna+bhajan+telugu+songs
    • https://static.usrfiles.com/ugd/b4a829_b9d321e736574338934ec823c3d9ddf5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d387e0ed889c4da19f37f4ee07faba37.pdf
    • https://static.usrfiles.com/ugd/455f95_a2e1095cd4114adba7dd97dad6db3f95.pdf
    • https://static.usrfiles.com/ugd/b8c837_232b2ce46f504b449e36880dc647fa5a.pdf
    • https://static.usrfiles.com/ugd/81d6a4_b9eb8c17487148b898e4c51de02fddfa.pdf
    • https://static.usrfiles.com/ugd/a2e20a_547b0cc607d94268a1e1903966fcf77d.pdf
    • https://static.usrfiles.com/ugd/b8c837_b47c0721ac234d118d943dcd9daec2fc.pdf
    • https://static.usrfiles.com/ugd/de3d83_57d6865863af4e0291202716db9fc5f3.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd43c14f88954335ae0f6564ca109218.pdf
    • https://static.usrfiles.com/ugd/b8c837_457bdcb50c884ce7ad5928ab83608434.pdf
    • https://cdn.shopify.com/s/files/1/0434/0790/0835/files/40241340413.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/47917526074.pdf
    • https://cdn.shopify.com/s/files/1/0445/9646/1732/files/character_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/15513384728.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_off0000496c.bin
fb74fe3e6330e44564ab33350fe3e2fdeea7c362b564305b9a66840414bb9ad0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x496C 5132 bytes
font_01_sfnt_off00005ae6.bin
91dc9d6be18ca2791522d2e05052c9200059368b1d14e10d38a9337c5da099c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE6 14836 bytes

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