Malicious PDF — malware analysis report

Static analysis result for SHA-256 12e9b7dece8f928f…

MALICIOUS

PDF

52.5 KB Authoring application: Inkscape
MD5: 9b53a518a3748e178e38f040f64cbb35 SHA-1: a8cf3dafaeff6f110e306be1490a9699a219893f SHA-256: 12e9b7dece8f928f3e1256b5bdbcc67fbf35236000bfde289feca28d34539a49
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or a distribution mechanism for further content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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://adsmanila.com/uploads/1/3/0/6/130621317/3305931.pdf
    • http://apbgprojects.com/uploads/1/3/0/6/130605346/2299132.pdf
    • http://my-bwk.com/uploads/1/3/0/5/130540208/10c09e952.pdf
    • http://chiarraarpaia.com/uploads/1/3/0/3/130323806/6ecefa.pdf
    • http://annamariecrowhurst.com/uploads/1/3/0/6/130640164/6471671.pdf
    • http://paulfolger.net/uploads/1/3/0/5/130588207/8062943.pdf
    • http://downsideupphoto.com/uploads/1/3/0/5/130590139/jajoruru.pdf
    • http://exitplanningcollaborative.com/uploads/1/3/0/2/130287371/pibakupudaduw-zejatenu-babovusom.pdf
    • http://thegoldengate.net/uploads/1/3/0/5/130590351/42ecad747d6.pdf
    • http://mycrossreference.net/uploads/1/3/0/5/130545684/lukonexuxajo_tebukesixanira_juwetapej.pdf
    • http://newimagesfencing.com/uploads/1/3/0/3/130323210/9934232.pdf
    • http://dakinabuvo.difmed.com/uploads/2020/01/28/zukurepigunolum-dekilaj-zojomizemik.pdf
    • http://nobuhotelmarbella.devsite-1.com/uploads/1/3/0/2/130289532/130289532.html#maplestory+come+find+me+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001036.bin
e1c26f30f6092a9ebf685446df51bf6ad76b4d39a62cebc9374a01fe057132bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1036 9596 bytes

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