Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1c2f6838e9fc51b…

MALICIOUS

PDF

38.6 KB Created: 2020-08-30 23:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3abaeeb7834fa3dacfd85ff7eebd8e3f SHA-1: 0f413f26b78e4d8cf8d5639ace56627700412fde SHA-256: d1c2f6838e9fc51bcc058abf568b0ad0bb27f72690b1679fddeea0c3e3771ea6
120 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, containing numerous embedded links. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/wix?keyword=dachshund+colors+and+markings+pictures'. This suggests the document is designed to lure users to malicious sites, likely for further exploitation or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the redirector and the link farm strongly indicate a malicious intent.

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=dachshund+colors+and+markings+pictures
    • https://static.usrfiles.com/ugd/d99ef3_138faf4d724d4732b363ae52e0254095.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c6863ba88144bb3a23b51bf74ff5727.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba81411a5788433eb5a317c500da141c.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_e66c1b22308e4b1f8c5c726398b9bcad.pdf
    • https://static.usrfiles.com/ugd/b8c837_b9dd6113809a4788a1558277233cf625.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_8b64c171337c42ac977fd55448711c8a.pdf
    • https://cdn.shopify.com/s/files/1/0431/8173/6096/files/fonawuruluvifo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/49161907466.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_off00005a93.bin
b1812a2709f2ade99978ef41bae67b6ef4bd35ccc1652fe2d086a2d22ce15319		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A93 5548 bytes
font_01_sfnt_off00006d3e.bin
db670bedbec877a1e63b579003eabc646ae720ddcbc587329b384eb60fa2f72e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3E 9632 bytes

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