Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3d180b5e874761a…

MALICIOUS

PDF

125.4 KB Authoring application: PDF Studio
MD5: 5284aae3be9f2d2ed9a75e146bf3c98a SHA-1: ab9b6a2c1b089dad9efb7659999b7a03dfeb03e4 SHA-256: e3d180b5e874761aaad65b4daf8d9e21f7f2009f695da9f3c577d1d51dd1f3d3
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with multiple URLs pointing to PDF files on various domains. This behavior is indicative of a phishing or malware distribution scheme, where users are enticed to click links that lead to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

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://rifa.flame.company/uploads/2020/01/29/naxin-pojosa-zuvurido-wiloridasel.pdf
    • http://allisongiessuebelhair.com/uploads/1/3/0/5/130550688/bukedadijom.pdf
    • http://sabpermaculturegroup.com/uploads/1/3/0/5/130543087/cf7a5c42c5.pdf
    • http://liwabip.doma-2.ru/uploads/2020/01/28/4075558.pdf
    • http://warren.capetown/uploads/1/3/0/5/130551124/9698699.pdf
    • http://mmafanvote.com/uploads/1/3/0/7/130739632/130739632.html#avengers+endgame+trailer+3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013c9.bin
e2c4fd8b0c7a898650fb5408e0fd76e5b4d75f84e81b3bf36ced5d51bddf4056		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C9 14292 bytes
font_01_sfnt_off000074c3.bin
00357c414ffdf49cce24ec52a0f8322a8d5de4e4703770dcc9cece12faeb7182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74C3 19020 bytes

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