Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c24a2d69defb07b…

MALICIOUS

PDF

37.3 KB Authoring application: pstoedit
MD5: 4319516d352e992ebc89188507e1ff15 SHA-1: f00c7597a5084a0cf7ea8aed26894f4fa6cde80b SHA-256: 5c24a2d69defb07ba8cc0a2572f96a305ab7443a8acc20b2ec88e3e24f533bcd
152 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of embedded URLs, forming a link farm, which is a common technique for phishing or distributing further malware. The presence of these links suggests the document's primary purpose is to redirect users to external, potentially harmful, content.

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://anthonybeastmode.com/uploads/1/3/0/5/130551904/kevuv.pdf
    • http://simplymagicaljewelry.com/uploads/1/3/0/4/130476850/vufupon.pdf
    • http://comedianjordanjackson.com/uploads/1/3/0/4/130483937/tatowatiresed.pdf
    • http://365poolspa.com/uploads/1/3/0/2/130272266/6741508.pdf
    • http://pacxo.us/uploads/1/3/0/5/130550888/3026846.pdf
    • http://tivida.bestpodsolnuh.ru/uploads/2020/01/28/nasikevolevazijupo.pdf
    • http://beachvita.com/uploads/1/3/0/5/130551558/4328092.pdf
    • http://oojoandbink.com/uploads/1/3/0/6/130621511/kowiwatuwav-kokebosapofegu-nesubagatum-linaw.pdf
    • http://maygamers.com/uploads/1/3/0/2/130272396/6398242.pdf
    • http://solidmetrology.com/uploads/1/3/0/4/130476294/1854355.pdf
    • http://mimiandjoel.us/uploads/1/3/0/2/130287946/3545211.pdf
    • http://mychinesewatch.com/uploads/1/3/0/5/130588258/130588258.html#us+polo+assn+formal+trousers
    • 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_off0000124a.bin
576017b4c00be6f9285932e513bb15c41978f2b4baf07b8269ba077bb7fac81a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124A 8240 bytes
font_01_sfnt_off00004a24.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A24 16164 bytes

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