Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/05/2026, 15:59

General

  • Target
    c260c0460e98d4a06c556b2269629fc39e91cdd4aeb67a2d8a1f8dc107296cf4.exe
  • Size 3.0MB
  • Sample260528-tfg2vsft5w
  • SHA256 c260c0460e98d4a06c556b2269629fc39e91cdd4aeb67a2d8a1f8dc107296cf4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 1 IoCs
  • UPX packed file 7 IoCs

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

  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c260c0460e98d4a06c556b2269629fc39e91cdd4aeb67a2d8a1f8dc107296cf4.exe
    "C:\Users\Admin\AppData\Local\Temp\c260c0460e98d4a06c556b2269629fc39e91cdd4aeb67a2d8a1f8dc107296cf4.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\SysWOW64\sc.exe
      sc.exe start 4COu4Rw7tA8
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:5924
  • C:\Windows\Syswow64\837154c0
    C:\Windows\Syswow64\837154c0
    1⤵
    • Executes dropped EXE
    PID:4236
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 152
      2⤵
      • Program crash
      PID:5104
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4236 -ip 4236
    1⤵
      PID:5932
    • C:\Windows\Syswow64\837154c0
      C:\Windows\Syswow64\837154c0
      1⤵
      • Executes dropped EXE
      PID:4024
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 148
        2⤵
        • Program crash
        PID:2128
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4024 -ip 4024
      1⤵
        PID:2652

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            837154c0

            • Path C:\Windows\SysWOW64\837154c0
            • Size 3.0MB
            • SHA256 c889829a39cb56f7ef349b636379d32a46bb5bb8d39530dead9e8775cd0a6cc8
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2328-0-0x0000000000560000-0x0000000000865000-memory.dmp

            memory/2328-16-0x0000000000560000-0x0000000000865000-memory.dmp

            memory/4024-6-0x0000000000370000-0x0000000000675000-memory.dmp

            memory/4024-7-0x0000000000370000-0x0000000000675000-memory.dmp

            memory/4236-3-0x0000000000370000-0x0000000000675000-memory.dmp

            memory/4236-4-0x0000000000370000-0x0000000000675000-memory.dmp