Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee44d1b9361112b…

MALICIOUS

PDF

43.1 KB Authoring application: OpenOffice Draw
MD5: 38cf8fd1a7a77e6a953757dbd3686023 SHA-1: df636347b375971aeb7af1e0f1d296bae7361947 SHA-256: 5ee44d1b9361112b84a2b31bab1520f50ae4c4d6fb537b08d7204062497410f3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. The document body also contains these URLs, suggesting a deliberate attempt to redirect users. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The presence of embedded URLs and the nature of the heuristic firings indicate a likely phishing or SEO manipulation scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://storyframe.tv/uploads/1/3/0/5/130541384/244542.pdf
    • http://lucasgarron.net/uploads/1/3/0/5/130544067/zojomamelovabox-tozir-dininibiles.pdf
    • http://thefriendlypear.com/uploads/1/3/0/2/130289581/ranowiz.pdf
    • http://official-brands.com/uploads/1/3/0/7/130738632/kalimonekironepake.pdf
    • http://spokaneboudoirphotography.com/uploads/1/3/0/6/130640136/4793536.pdf
    • https://kofumonuzolesa.weebly.com/uploads/1/3/0/6/130604473/74190e84.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/7/130775985/130775985.html#amazon+30+march+quiz+answers
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000114e.bin
15c8b959b66f3e84d69bbc579a3321c96af53fab0487cd69a8cc53632f65f966		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114E 8596 bytes
font_01_sfnt_off000061c6.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C6 16164 bytes

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