Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fa35dfb43e3113…

MALICIOUS

PDF

46.6 KB Authoring application: OpenOffice Draw
MD5: 3fb01bf499107e604e1a9d127d41081f SHA-1: 00a0a1d71474428e66a46f7f177828533f10e0ce SHA-256: 00fa35dfb43e3113b7d2cd7b46dfd96bacc0af712b0cd49d8f1c190ec8cd2d09
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged by multiple heuristics, including a critical finding for a link farm containing numerous external PDF URLs. The ML classifier also assigned a high probability of maliciousness. The document body contains a large number of embedded URLs, suggesting a phishing or SEO manipulation attempt to redirect users to potentially malicious content.

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://lucaazzurro.com/uploads/1/3/0/4/130483741/xanufufurowin-zozatiwokofatoj-tilunuxaladafe-pegubarudarapip.pdf
    • https://gafojagitaw.weebly.com/uploads/1/3/0/4/130483584/3e5f5022555.pdf
    • https://gibusegodexego.weebly.com/uploads/1/3/0/4/130476054/2212696.pdf
    • http://jisojo.fuck4me.top/uploads/2020/01/28/5994140.pdf
    • http://gutuzemofa.onlinespace.tech/uploads/2020/01/28/5825831.pdf
    • http://kaluti.sakp.tech/uploads/2020/01/28/9684624.pdf
    • http://kobufep.migrascop.net/uploads/2020/01/27/lawugiv.pdf
    • http://sasmitaworld.org/uploads/1/3/0/6/130604823/fded71599.pdf
    • https://judifasa.weebly.com/uploads/1/3/0/3/130313127/6041722.pdf
    • http://kilitewin.copyrightcontact-100000659807.com/uploads/2020/01/27/lewapexemewul_lipapusipe.pdf
    • http://cfthomas.com/uploads/1/3/0/2/130273617/130273617.html#intel+centrino+wireless+n+1030
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128b.bin
2c3852e4604775f95f3c28ccdc3dc32424fce277e758763fce02afa900d81be1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128B 8000 bytes
font_01_sfnt_off00004a66.bin
599fd751d0fba3f150f527e03e1c2839bfeaf1310fb93ab900f9825ca5e69e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A66 19344 bytes

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