General

  • Target

    235215E48C6B826E256D5918CBB1B0DA.exe

  • Size

    7.2MB

  • Sample

    250201-wyxldawpcl

  • MD5

    235215e48c6b826e256d5918cbb1b0da

  • SHA1

    7045d2e4da8d6102e3e199af4b848cac4ca934e1

  • SHA256

    2bcb3e1d1935ef764abf3b1e44a5d8a310be0f863253ea746ef3875316a43a91

  • SHA512

    feb1b3315da05d4466be68c6bb70dfdeaeaf8cb92ced1023db84c0d66a1b40e7f0fa9bad2d9e421b580887e1134dc7e30a25d5f9dc48f4e0cb780ebd93899df4

  • SSDEEP

    196608:FPU+TdWWQbrlUIxOthZr2GbxuvzN5wWYNRdRT:JU+T4LbrlbxOFr2GFuv7+NRL

Malware Config

Targets

    • Target

      235215E48C6B826E256D5918CBB1B0DA.exe

    • Size

      7.2MB

    • MD5

      235215e48c6b826e256d5918cbb1b0da

    • SHA1

      7045d2e4da8d6102e3e199af4b848cac4ca934e1

    • SHA256

      2bcb3e1d1935ef764abf3b1e44a5d8a310be0f863253ea746ef3875316a43a91

    • SHA512

      feb1b3315da05d4466be68c6bb70dfdeaeaf8cb92ced1023db84c0d66a1b40e7f0fa9bad2d9e421b580887e1134dc7e30a25d5f9dc48f4e0cb780ebd93899df4

    • SSDEEP

      196608:FPU+TdWWQbrlUIxOthZr2GbxuvzN5wWYNRdRT:JU+T4LbrlbxOFr2GFuv7+NRL

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Xmrig family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

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

    • Creates new service(s)

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks