General

  • Target

    notee.exe

  • Size

    7KB

  • Sample

    230202-ngwnrafh49

  • MD5

    d3e184b081ba54e7b5cbd5dc579f4f27

  • SHA1

    b7c61923ed6ac09d1aec3b7ff799548d6b6af1c8

  • SHA256

    902abe7c2f1e7afb139ce47a818b11d9ff9dfe9a46cc9b9afb7d7d53bda6c528

  • SHA512

    a9153828449c0ac2eb0feb465b092168b176f133034732eccfec69d4e0705e8f3acd628314b751ad0eaaff06d0b78784242ecbad1aa26783bb0dba23e95f23ee

  • SSDEEP

    96:Wd7KqtBgjmLYoSrJmAkcPFn9bi/rkA86o00gazFnU:WPwHrJr9nlmAyjbt

Malware Config

Targets

    • Target

      notee.exe

    • Size

      7KB

    • MD5

      d3e184b081ba54e7b5cbd5dc579f4f27

    • SHA1

      b7c61923ed6ac09d1aec3b7ff799548d6b6af1c8

    • SHA256

      902abe7c2f1e7afb139ce47a818b11d9ff9dfe9a46cc9b9afb7d7d53bda6c528

    • SHA512

      a9153828449c0ac2eb0feb465b092168b176f133034732eccfec69d4e0705e8f3acd628314b751ad0eaaff06d0b78784242ecbad1aa26783bb0dba23e95f23ee

    • SSDEEP

      96:Wd7KqtBgjmLYoSrJmAkcPFn9bi/rkA86o00gazFnU:WPwHrJr9nlmAyjbt

    • Detect PureCrypter injector

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks