Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/10/2026, 00:26

General

  • Target
    0a844b9203ac2602_bot_x64.exe
  • Size 57KB
  • Sample261005-arlpmsty8q
  • SHA256 092664e3e946cedc4712f58d40294362aee1e5330c4d15c9f0d6303ae474bb5f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • solaris_loader

Version
  • PIRATE

C2
  • 193.178.158.57

  • 193.178.158.107

  • 196.251.107.186

Signatures

  • Family: SolarisLoader

    SolarisLoader is a Windows loader written in C.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of UnmapMainImage 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Suspicious use of UnmapMainImage
    PID:4392
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:4444
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:4972
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Modifies registry class
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:572
          • C:\Users\Admin\AppData\Local\Temp\0a844b9203ac2602_bot_x64.exe
            "C:\Users\Admin\AppData\Local\Temp\0a844b9203ac2602_bot_x64.exe"
            3⤵
            • Reads the TCP/IP host and domain name from the registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:5060
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Services\wlrmdr.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Services\wlrmdr.exe
        1⤵
        • Executes dropped EXE
        PID:4796

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            xn22dmw6.exe

            • Path C:\Users\Admin\AppData\Local\Temp\xn22dmw6.exe
            • Size 35KB
            • SHA256 5e8ad10a97578438492eefe0542623744a3df31d8159638ca02bc368d4edb800
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ynppww8k.exe

            • Path C:\Users\Admin\AppData\Local\Temp\ynppww8k.exe
            • Size 35KB
            • SHA256 410c69aa606f28095bf4f2e74dfadc19d01838c92b8d9190665f1e6dff59dc88
            • MD5 SHA1 SHA512 SSDEEP TLSH

            wlrmdr.exe

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Services\wlrmdr.exe
            • Size 57KB
            • SHA256 092664e3e946cedc4712f58d40294362aee1e5330c4d15c9f0d6303ae474bb5f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/572-12-0x0000000180000000-0x0000000180005000-memory.dmp

            memory/572-13-0x00000000031E0000-0x00000000031E1000-memory.dmp

            memory/4392-0-0x00000299D3B90000-0x00000299D3B92000-memory.dmp