General

  • Target

    midnight (1234).zip

  • Size

    138KB

  • Sample

    250106-hpmg6a1rgj

  • MD5

    d6887c50a19ddf4160195a84017cbec7

  • SHA1

    0e443176b3091a05da329c05c509fc1a412087d0

  • SHA256

    f97488ee0b0f23efa8ce589d1e3456e575fb3b1ac938349b82c7d3aaa63e8e50

  • SHA512

    956d56bb4469caaa1658233d59d327fb09a8a09dafe2af36537b2128deb4536a9c40d5b364f96bf006fca9832bf10491cfff22ad32ae7cba7dd0f2f37b0431eb

  • SSDEEP

    3072:VLxP/oE8EIXTcylXkojCS9x9eEXy9o3Kpr8CxLv7L:FxP/oJDJlUcCS9x9evG3KpvZ/

Malware Config

Targets

    • Target

      midnight.exe

    • Size

      308KB

    • MD5

      5ac307177606b2ae5c404f290e7a8283

    • SHA1

      e4fd10a9e94c6ffc2394f8b5454fffaffaf7fce7

    • SHA256

      ddd392e5d84b3e12121dd6b0c86a448669a92922b924344f964da8d3ebec3ab9

    • SHA512

      a285c1331e62569abe1d4dc055464ce05691245bae407a59d4d488eb23bd2820d00ef26e3ea7d4bbb2eee5335f21402e3b43791c7a56d747f5b726b925fced8c

    • SSDEEP

      6144:0AWNdBMyKbsCauloZM+rIkd8g+EtXHkv/iD4AEGobhS6F6AxDeebw3b8e1m+iU:OCa4oZtL+EP8AEGobhS6F6AxDeebWAU

    • Detect Umbral payload

    • Detect Xworm Payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Umbral family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v15

Tasks