Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-02-2025 17:05

General

  • Target

    2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk.exe

  • Size

    1.1MB

  • MD5

    37c5e2de42bc44f855e4316f85b5ed8d

  • SHA1

    a8743e31caac1fbb101646d43f9ce7d5479567ad

  • SHA256

    7d955bb75c0eb8d8c50d911cfb6320df0c7af260d16522c71b5a8e8f52d121c4

  • SHA512

    5a3a37ef1c204c8a55d324f6fe96a949f685aa28d11b64c949710369a9ed31d380422a6922eca8c71002922f6e1417996b33fa39d66cd6c9484f66408697a81f

  • SSDEEP

    24576:Eec44mam9NMNfs5KpQnBOeC+aMQNo/80:Z4hmq05KpQnB++CWr

Malware Config

Extracted

Family

phemedrone

C2

195.20.18.146:8080

Signatures

  • Phemedrone

    An information and wallet stealer written in C#.

  • Phemedrone family
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-02_37c5e2de42bc44f855e4316f85b5ed8d_cobalt-strike_ryuk.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3784
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
        PID:1940
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:4420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 928
          3⤵
          • Program crash
          PID:4104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4420 -ip 4420
      1⤵
        PID:2492

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4420-0-0x0000000000400000-0x0000000000428000-memory.dmp

        Filesize

        160KB

      • memory/4420-1-0x000000007488E000-0x000000007488F000-memory.dmp

        Filesize

        4KB

      • memory/4420-2-0x0000000005660000-0x00000000056C6000-memory.dmp

        Filesize

        408KB