Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/05/2026, 04:23

General

  • Target
    2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
  • Size 6.2MB
  • Sample260522-ezzzfshs4s
  • SHA256 1bc8e3775f9c71c87c94999a648f1f377c50a1aff979f51c6bc96c2d31576345
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Creates new service(s) 2 TTPs
  • Executes dropped EXE 3 IoCs
  • Modifies service settings 1 TTPs

    Alters the configuration of existing services.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 17 IoCs
  • Launches sc.exe 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 19 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:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3948
    • \??\c:\Windows\System32\cmstp.exe
      "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\3STfexVrfPg4kJqY.inf
      2⤵
        PID:1720
      • C:\Windows\system32\schtasks.exe
        "schtasks" /create /tn WindowsDefender /tr C:\Users\Admin\AppData\Roaming\defender.exe /sc onlogon /rl highest /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2160
      • C:\Windows\system32\sc.exe
        "sc" create WindowsDefender binPath= C:\Users\Admin\AppData\Roaming\defender.exe start= auto
        2⤵
        • Launches sc.exe
        PID:4164
      • C:\Windows\system32\sc.exe
        "sc" start WindowsDefender
        2⤵
        • Launches sc.exe
        PID:3160
      • \??\c:\Windows\System32\cmstp.exe
        "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\Vy9idUB4VYGKOQra.inf
        2⤵
          PID:3652
      • C:\Users\Admin\AppData\Roaming\defender.exe
        C:\Users\Admin\AppData\Roaming\defender.exe
        1⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4344
        • \??\c:\Windows\System32\cmstp.exe
          "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\4ToSAwHBfmRlrI0m.inf
          2⤵
            PID:2492
          • C:\Windows\system32\schtasks.exe
            "schtasks" /create /tn WindowsDefender /tr C:\Users\Admin\AppData\Roaming\defender.exe /sc onlogon /rl highest /f
            2⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2352
          • C:\Windows\system32\sc.exe
            "sc" create WindowsDefender binPath= C:\Users\Admin\AppData\Roaming\defender.exe start= auto
            2⤵
            • Launches sc.exe
            PID:1792
          • C:\Windows\system32\sc.exe
            "sc" start WindowsDefender
            2⤵
            • Launches sc.exe
            PID:680
          • \??\c:\Windows\System32\cmstp.exe
            "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\G3PGjmc3BunyuPWv.inf
            2⤵
              PID:4500
          • C:\Users\Admin\AppData\Roaming\defender.exe
            C:\Users\Admin\AppData\Roaming\defender.exe
            1⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious use of WriteProcessMemory
            PID:396
            • \??\c:\Windows\System32\cmstp.exe
              "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\eUE1rKwWyTEtQV4f.inf
              2⤵
              • Drops file in System32 directory
              • Modifies data under HKEY_USERS
              PID:3368
            • C:\Windows\system32\schtasks.exe
              "schtasks" /create /tn WindowsDefender /tr C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe /sc onlogon /rl highest /f
              2⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2444
            • C:\Windows\system32\sc.exe
              "sc" create WindowsDefender binPath= C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe start= auto
              2⤵
              • Launches sc.exe
              PID:4572
            • C:\Windows\system32\sc.exe
              "sc" start WindowsDefender
              2⤵
              • Launches sc.exe
              PID:2624
            • \??\c:\Windows\System32\cmstp.exe
              "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\itzv3Kpi193gzjEI.inf
              2⤵
                PID:2264
            • C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
              C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:5088
              • \??\c:\Windows\System32\cmstp.exe
                "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\ikPFpBYBOWOOLZzH.inf
                2⤵
                  PID:868
                • \??\c:\Windows\System32\cmstp.exe
                  "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\itgjGuoVqSQ8QNv5.inf
                  2⤵
                    PID:696
                • C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe
                  C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:1288
                  • \??\c:\Windows\System32\cmstp.exe
                    "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\wJOD2QY8PZaEw92q.inf
                    2⤵
                      PID:3420
                    • \??\c:\Windows\System32\cmstp.exe
                      "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\xbWwcEcdoZn1XsLX.inf
                      2⤵
                        PID:4264

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

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                          Downloads

                          dir.sqlite3

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir.sqlite3
                          • Size 64KB
                          • SHA256 91670e5d7ac658396db97be8cfe77dda09da6539bd0d69bb9188c5801d67c44a
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          dir.sqlite3

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir.sqlite3
                          • Size 100KB
                          • SHA256 d631e04e60fd5587b46cfc79623a2280e227cc97f5081efcdf6b8cdc3dc917c6
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          con_microdesc_sha3-256-0e821c4310fc3aa9b648832113fc9b15815ffedeb8afc4e24e31fe6ef2816312

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir_blobs\con_microdesc_sha3-256-0e821c4310fc3aa9b648832113fc9b15815ffedeb8afc4e24e31fe6ef2816312
                          • Size 3.4MB
                          • SHA256 2ea998b398ce6d99df64f646aa053c4f11fba1171544e7773fc6835baf718cea
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          circuit_timeouts.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\circuit_timeouts.json
                          • Size 451B
                          • SHA256 795ec3e3ddd233b66c1d24775e762f57d67e66afc878e565ff2dd8cedd948426
                          • MD5 SHA1 SHA512 TLSH

                          circuit_timeouts.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\circuit_timeouts.json
                          • Size 65B
                          • SHA256 9dbe12675e515f32f07aea11cc9f8bea69b3f143b3d825d98ca1ef41b2988ee7
                          • MD5 SHA1 SHA512 TLSH

                          guards.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\guards.json
                          • Size 9KB
                          • SHA256 df2fb28aa18f373acca0d6a7b514e33c80408aece979da1cf3613223ba3da1a3
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          guards.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\guards.json
                          • Size 121B
                          • SHA256 a2c2287ea6aa4ba07c2c1ab66268828c011a5d9cacef6dba1179a6bd196c2c3d
                          • MD5 SHA1 SHA512 TLSH

                          defender.exe

                          • Path C:\Users\Admin\AppData\Roaming\defender.exe
                          • Size 6.2MB
                          • SHA256 1bc8e3775f9c71c87c94999a648f1f377c50a1aff979f51c6bc96c2d31576345
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          3STfexVrfPg4kJqY.inf

                          • Path \??\c:\windows\temp\3STfexVrfPg4kJqY.inf
                          • Size 671B
                          • SHA256 e055e3fa9cd24b91221a5b8a8f890de5a111bd5ee26b220d531864c130d266d8
                          • MD5 SHA1 SHA512 TLSH

                          4ToSAwHBfmRlrI0m.inf

                          • Path \??\c:\windows\temp\4ToSAwHBfmRlrI0m.inf
                          • Size 606B
                          • SHA256 335cb3c398f27c39abb5002596bc5189cabb5282ccf8ceda50dc8ca7dd4ea96b
                          • MD5 SHA1 SHA512 TLSH

                          wJOD2QY8PZaEw92q.inf

                          • Path \??\c:\windows\temp\wJOD2QY8PZaEw92q.inf
                          • Size 632B
                          • SHA256 0ec08cda0760d14a3bc3d0cf818876fd90ac27066d86cd2c7fe6a606a5acf761
                          • MD5 SHA1 SHA512 TLSH

                          memory/396-29-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/1288-127-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-109-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-114-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-124-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-105-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-91-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-101-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-131-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/1288-31-0x00007FF6C3550000-0x00007FF6C3B87000-memory.dmp

                          memory/3948-71-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-97-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-102-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-128-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-112-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-123-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-106-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-23-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/3948-110-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/4344-119-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-73-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-111-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-28-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-107-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-129-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-103-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-125-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/4344-99-0x00007FF61F240000-0x00007FF61F877000-memory.dmp

                          memory/5088-122-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-90-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-108-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-100-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-126-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-69-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-30-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-104-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-130-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp

                          memory/5088-113-0x00007FF716E90000-0x00007FF7174C7000-memory.dmp