Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e834a35f1e6be64…

MALICIOUS

PDF

46.2 KB Authoring application: Pdftk
MD5: ccac53e56c4027194d3f2b3983e7a2b4 SHA-1: 5e21f93e19adaf360efcb1f8be7f2b890d003cde SHA-256: 3e834a35f1e6be6447b058aa73df3b8ce4e8a086b24d86122986f32e3552a898
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The ML classifier also assigned a high probability of maliciousness. The document body contains numerous embedded URLs, with the primary domain being dogodogo.ru, indicating a likely phishing or SEO spam campaign designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://dogodogo.ru/uploads/1/3/0/6/130639567/xewug_dodajudaxe_manomopikiz.pdf
    • http://xhfkdhfkex.com/uploads/1/3/0/2/130271205/7847786.pdf
    • http://ontariomotorcyclelaw.com/uploads/1/3/0/3/130323235/nekajuwefu_jeselawijufuvef_joburowe_kifajotuloge.pdf
    • https://tuvosoxofiwixu.weebly.com/uploads/1/3/0/5/130550675/dc30539.pdf
    • https://darepoke.weebly.com/uploads/1/3/0/5/130544390/6968861.pdf
    • http://michelleleblancshortstories.com/uploads/1/3/0/5/130551671/tedefigatavugeveg.pdf
    • https://lelefunu.weebly.com/uploads/1/3/0/6/130604306/f1439ded1608.pdf
    • http://olympic-custom-construction.com/uploads/1/3/0/6/130639888/130639888.html#imprint+beast+poe

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001180.bin
1aa23578c6721e4bccf6fa996b5df7f20eb45145ccff83324459268c80d3864f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1180 8156 bytes
font_01_sfnt_off00006ecb.bin
6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECB 16068 bytes

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