Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b46906a477d3e3…

MALICIOUS

PDF

38.7 KB Authoring application: OpenOffice.org
MD5: 08e1fee14b4b376b25698b1db328458d SHA-1: 9a5cb539506a1dd18fea21355e4fc0d2aa61127d SHA-256: 00b46906a477d3e3d02e6ecfa2cac0aec63bd66793d45b8c4f9dcad6a34cdfc1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded URLs pointing to external PDF files, a technique commonly used for SEO poisoning and phishing. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are likely used to redirect users to malicious sites or download further payloads.

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 https://jevasixok.weebly.com/uploads/1/3/0/4/130476573/0940f4.pdf
    • http://roxubata.app3pinfo.online/uploads/2020/01/27/saxuxeza_mikekukemo_tonukux_zovar.pdf
    • http://rofot.copyrightcontact-100000641253254.com/uploads/2020/01/27/wutisexepo-wovomevewugo.pdf
    • https://wuvolenixe.weebly.com/uploads/1/3/0/5/130590474/gubofeka.pdf
    • https://goropetinopuj.weebly.com/uploads/1/3/0/5/130551115/9d80533b.pdf
    • http://rem-post.ru/uploads/2020/01/28/4946004.pdf
    • http://nudebil.ta-mitatami.pro/uploads/2020/01/29/3a5755f6a68.pdf
    • http://rap.neupustishans.ru/uploads/2020/01/27/jumotel.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/5/130539479/130539479.html#endemic+life+mhw+guide
    • 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_off000011ad.bin
4a18b07143d56895d15b1d8ad35add913fae29b1f94eee5a4d3ace9c8e593c0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AD 8192 bytes
font_01_sfnt_off00004fc9.bin
5d7ebd720715cd86529581f1d40cc643f68465477bd430d4be5ff736bc95f798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC9 16268 bytes

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