Malicious PDF — malware analysis report

Static analysis result for SHA-256 937571a48020c380…

MALICIOUS

PDF

42.7 KB Authoring application: Adobe PDF Library 9.0
MD5: affe06ae5dc0f4aff063a8f330265853 SHA-1: e84ef00816f081bb53485aa48ae98ad5173373a3 SHA-256: 937571a48020c38056e49d6cd0526331ad2ee5c284a22d3191b3cc2ff3deb4c7
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall'. The document body contains numerous embedded URLs pointing to external PDF files, indicating a likely phishing or traffic-driving campaign. The primary attack pattern involves luring users to click on these links, which likely lead to further malicious content or downloads.

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://lpcoalition.com/uploads/1/3/0/3/130323214/siwulenugizewo_jugor.pdf
    • http://pe-uae.com/uploads/1/3/0/5/130550867/pewadesuvof_lugiji_komodovani.pdf
    • http://nhan-tien-quoc-te-vn.online/uploads/1/3/0/6/130620792/a96b1a53.pdf
    • http://rene.comparateurdesbanques.com/uploads/2020/01/29/669788.pdf
    • http://norwichladsabc.co.uk/uploads/1/3/0/6/130604542/2803564.pdf
    • http://noseyroseytiedye.com/uploads/1/3/0/4/130483858/117511.pdf
    • http://cynchiabeauty.com/uploads/1/3/0/2/130270747/7236301.pdf
    • http://beachesinsrilanka.com/uploads/1/3/0/3/130313252/zedup_rumamupe_wogolitanoro.pdf
    • http://wefegedo.frirus.ru/uploads/2020/01/28/wukafomewitigij-pizotiji-zewefo-jixaxun.pdf
    • http://kirkplayers.com/uploads/1/3/0/5/130539479/jogudebagavomo.pdf
    • http://beastfriendz.com/uploads/1/3/0/6/130620150/samafox_xuvem_sokinubojejat.pdf
    • http://reboundat.com/uploads/1/3/0/6/130604821/130604821.html#anemia+in+pregnancy+ppt+free

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001359.bin
88893a9bcb7bcaf7297e450a8b267632126b34b45d22c2117a49e82828f4da35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1359 8340 bytes
font_01_sfnt_off00006baa.bin
37f5452301c093781c3d8370804b6f3f52cfdb8a2d7b415f708f676045b90d93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAA 2732 bytes

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