Malicious PDF — malware analysis report

Static analysis result for SHA-256 46449186890a5f55…

MALICIOUS

PDF

43.4 KB Created: 2020-09-09 02:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 730c2ec809f79100e4a710c91d44eb36 SHA-1: f77a5b3f186126750338d577019f243592b5d3bc SHA-256: 46449186890a5f55554a4e99e04163c601b52f7c26b719b0ad4451d0dd6d2283
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to a URL that appears to be a lure for "Kaththi video songs isaimini". This URL redirects to a malicious domain. The file also contains a large number of external PDF links, suggesting a link farm or SEO poisoning attempt. The embedded document body text confirms the presence of the lure text and the malicious URL.

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.me/pify?keyword=kaththi+video+songs++isaimini
    • https://static.usrfiles.com/ugd/8ade13_33a1fba4a66b42119d67fe2951e7b6d6.pdf
    • https://static.usrfiles.com/ugd/de3d83_ad3a445c3ad24dc1b5bc3fcc0893fb2c.pdf
    • https://static.usrfiles.com/ugd/29c71c_2dcd21f77bfe4a03abada68e312c1d35.pdf
    • https://static.usrfiles.com/ugd/8cbfce_aa23a77eca194bc29e123257c61bdd38.pdf
    • https://static.usrfiles.com/ugd/f68081_d2ee130ddec94673a3cac670a55ba1df.pdf
    • https://static.usrfiles.com/ugd/34ec99_7f27a497fa0a49779df588734076f30e.pdf
    • https://static.usrfiles.com/ugd/b8c837_821e933222a64af9b7de43d3807d34f3.pdf
    • https://static.usrfiles.com/ugd/fe83c3_37f4b94740b5405d8ac824b828982126.pdf
    • https://static.usrfiles.com/ugd/b8c837_910ca1f853d14bbd9914e32619b9fbc3.pdf
    • https://static.usrfiles.com/ugd/b7082a_87fbda05e2724ff08b248b3909d7898b.pdf
    • https://static.usrfiles.com/ugd/b8c837_a21b72bb2cfa43b981a0160bcc6d9be2.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_off000060dd.bin
83bd6a2e78273720a8eabeba7846687ebe0670ec52780379c4c84b157e1f93a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x60DD 5140 bytes
font_01_sfnt_off00007241.bin
19869cc69648a0959a37d987a7b1bab3bb66f35ace769ad51feed99140040dad
pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 15240 bytes