Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5c161989025c1fb…

MALICIOUS

PDF

35.1 KB Created: 2020-09-02 00:21:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48511e6a6e1bcf6921b8e331f3d0ac6f SHA-1: 6a42f26f5ccec28d088c329f4b15695bf33d77ac SHA-256: d5c161989025c1fbfa7355062f8cf41d7b090a86d72bd7ed8647bc5b81d5be35
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a link farm containing numerous external links. One of these links, https://ttraff.com/wix?keyword=poovarasan+movie+songs++in+tamil, is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to lure users to malicious sites. The presence of multiple PDF links further supports the link farm classification.

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=poovarasan+movie+songs++in+tamil
    • https://static.usrfiles.com/ugd/37428b_6379f6f44688411e8969b845548a72ff.pdf
    • https://static.usrfiles.com/ugd/625844_4e6ded419b844d44be3368740231b8a7.pdf
    • https://static.usrfiles.com/ugd/2ac701_553f9ab6464448d8979c2b9cf556d2a5.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3929/files/account_receivable_and_payable.pdf
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/kumizawodukabugulenezal.pdf
    • https://cdn.shopify.com/s/files/1/0435/4772/1892/files/list_of_essential_amino_acids.pdf
    • https://static.usrfiles.com/ugd/9c43ec_8583f5e21a6a435392c42071a1b1f520.pdf
    • https://static.usrfiles.com/ugd/db1da1_e551965482814d5099baeae10f005c08.pdf
    • https://static.usrfiles.com/ugd/a4e402_91f628093365457590ffa4dc4620f0ee.pdf
    • https://static.usrfiles.com/ugd/6812d7_b632545f046f4a2193d4e6081aa67ca3.pdf
    • https://static.usrfiles.com/ugd/b8c837_909093583bfc4f7880e0198000c6c45a.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/fasavuge.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/nevunaxebaxigadax.pdf
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/wopavojibonuterokawilofak.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_off00004ca0.bin
dda529f0fab10828b01fe77f8971a61841cad03b8708f598d4f1fd315565f062		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CA0 5064 bytes
font_01_sfnt_off00005dc9.bin
c868f3b0f6d2f528c3d7e77a162ea42de13c66bd53a7aef58423d8772e5e0cfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC9 10004 bytes

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