Analysis
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max time kernel
139s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
25-04-2024 01:41
Static task
static1
Behavioral task
behavioral1
Sample
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe
Resource
win7-20231129-en
General
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Target
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe
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Size
426KB
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MD5
7d5053287343d71bf9e3b913d4e4e551
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SHA1
822191da126f6d18cbc110e02473afb0528751bd
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SHA256
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1
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SHA512
801a414806c2ff4a8db764dd4d1fa9b2ad06ac7976fd5a98079362c33583dce246f95dd76427f911d0674d07d3ebd26085773653ca52ba779e2707f202428bd3
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SSDEEP
12288:qoE0Q+9PzNEAVTH2BKlYZQ/yKrFvM/2SwJ:F1L9zLLCKlAQqEva25
Malware Config
Extracted
asyncrat
1.0.7
BSOD_New
Mika
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delay
1
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install
false
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install_file
UpdateTaskMachineUa.bat.exe
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install_folder
%AppData%
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pastebin_config
https://pastebin.com/raw/F7c4dqk3
Signatures
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Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Processes:
svchost.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0" svchost.exe -
Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions svchost.exe -
Looks for VMWare Tools registry key 2 TTPs 2 IoCs
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools svchost.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
svchost.exe48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
svchost.exe48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation svchost.exe Key value queried \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 4764 svchost.exe -
Processes:
svchost.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0" svchost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\"" 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe -
Processes:
svchost.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exesvchost.exedescription ioc process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
svchost.exedescription pid process target process PID 4764 set thread context of 4068 4764 svchost.exe regasm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1496 timeout.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exepowershell.exepid process 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe 4436 powershell.exe 4436 powershell.exe 4436 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exesvchost.exepowershell.exeregasm.exedescription pid process Token: SeDebugPrivilege 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe Token: SeDebugPrivilege 4764 svchost.exe Token: SeDebugPrivilege 4436 powershell.exe Token: SeDebugPrivilege 4068 regasm.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.execmd.execmd.exesvchost.exedescription pid process target process PID 4852 wrote to memory of 2276 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe cmd.exe PID 4852 wrote to memory of 2276 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe cmd.exe PID 4852 wrote to memory of 2012 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe cmd.exe PID 4852 wrote to memory of 2012 4852 48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe cmd.exe PID 2276 wrote to memory of 4924 2276 cmd.exe schtasks.exe PID 2276 wrote to memory of 4924 2276 cmd.exe schtasks.exe PID 2012 wrote to memory of 1496 2012 cmd.exe timeout.exe PID 2012 wrote to memory of 1496 2012 cmd.exe timeout.exe PID 2012 wrote to memory of 4764 2012 cmd.exe svchost.exe PID 2012 wrote to memory of 4764 2012 cmd.exe svchost.exe PID 4764 wrote to memory of 4436 4764 svchost.exe powershell.exe PID 4764 wrote to memory of 4436 4764 svchost.exe powershell.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe PID 4764 wrote to memory of 4068 4764 svchost.exe regasm.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
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
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C:\Users\Admin\AppData\Local\Temp\48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe"C:\Users\Admin\AppData\Local\Temp\48cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2E05.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"4⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
5Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_szvlxnty.ura.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\tmp2E05.tmp.batFilesize
151B
MD53b90d9cdf5b06a6e96a4f6e767cd2891
SHA13d4d13e55f8beece95129a1aaa765001a9c33790
SHA25618905f908092e334a5d598db4a5f33d4fcfd0d101388858db1c9e1ca4238e73f
SHA512935c7703474265f7a73d4ea8faace470e22fc4b0faf4613c1efb8630da3b907f554ec836f730d1ed45434d8652e8934c3fce928487b1c90b58977f9ea302b95b
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
426KB
MD57d5053287343d71bf9e3b913d4e4e551
SHA1822191da126f6d18cbc110e02473afb0528751bd
SHA25648cd145349ebdb8a3728c8c55b9e5a59df2ee7676a847afa340d7f88ae24cfd1
SHA512801a414806c2ff4a8db764dd4d1fa9b2ad06ac7976fd5a98079362c33583dce246f95dd76427f911d0674d07d3ebd26085773653ca52ba779e2707f202428bd3
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memory/4068-14-0x0000000000400000-0x0000000000416000-memory.dmpFilesize
88KB
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memory/4068-35-0x0000000005570000-0x0000000005580000-memory.dmpFilesize
64KB
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memory/4068-34-0x0000000074980000-0x0000000075130000-memory.dmpFilesize
7.7MB
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memory/4068-33-0x0000000005570000-0x0000000005580000-memory.dmpFilesize
64KB
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memory/4068-28-0x0000000074980000-0x0000000075130000-memory.dmpFilesize
7.7MB
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memory/4436-31-0x00007FFF4A8B0000-0x00007FFF4B371000-memory.dmpFilesize
10.8MB
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memory/4436-25-0x0000016704550000-0x0000016704572000-memory.dmpFilesize
136KB
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memory/4436-15-0x00007FFF4A8B0000-0x00007FFF4B371000-memory.dmpFilesize
10.8MB
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memory/4436-26-0x000001671C9E0000-0x000001671C9F0000-memory.dmpFilesize
64KB
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memory/4436-27-0x000001671C9E0000-0x000001671C9F0000-memory.dmpFilesize
64KB
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memory/4764-13-0x00007FFF4A8B0000-0x00007FFF4B371000-memory.dmpFilesize
10.8MB
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memory/4764-32-0x00007FFF4A8B0000-0x00007FFF4B371000-memory.dmpFilesize
10.8MB
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memory/4852-9-0x00007FFF4ABE0000-0x00007FFF4B6A1000-memory.dmpFilesize
10.8MB
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memory/4852-0-0x0000021630340000-0x0000021630348000-memory.dmpFilesize
32KB
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memory/4852-3-0x0000021631F70000-0x0000021631FDA000-memory.dmpFilesize
424KB
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memory/4852-2-0x0000021631FE0000-0x0000021631FF0000-memory.dmpFilesize
64KB
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memory/4852-1-0x00007FFF4ABE0000-0x00007FFF4B6A1000-memory.dmpFilesize
10.8MB