Analysis
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max time kernel
142s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25-04-2024 05:50
Static task
static1
Behavioral task
behavioral1
Sample
softcore-shd-lavacrypt.exe
Resource
win7-20231129-en
General
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Target
softcore-shd-lavacrypt.exe
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Size
408KB
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MD5
f1de359b4cb3e98d01e03f7f4aff75d7
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SHA1
ff190e4a989695c64f95495c0347498ec11eabd7
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SHA256
095a10fc0b992d28fd110516164eb608316a7d2bded28a2e0bd7aa66e895197c
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SHA512
21fe1331649696cf61fcae8054b7660803e73881302d975a0767422d7af3426bd559de17add4a00eaeaa43500c9a5b87a0012afeee8a80b273e23e1ad7315400
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SSDEEP
12288:8Jxyctbiy/9SgCf7iSdo1pkQLBB55De61:8Ty9y/4gCf7Qp5BBbq8
Malware Config
Extracted
asyncrat
0.5.8
Spread
94.156.10.12:80
94.156.10.12:443
94.156.8.44:80
94.156.8.44:443
B7T0vEfLYvgG
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delay
300
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install
false
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install_folder
%AppData%
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:
softcore-shd-lavacrypt.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions softcore-shd-lavacrypt.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions svchost.exe -
Looks for VMWare Tools registry key 2 TTPs 2 IoCs
Processes:
softcore-shd-lavacrypt.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools softcore-shd-lavacrypt.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:
softcore-shd-lavacrypt.exesvchost.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion softcore-shd-lavacrypt.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion softcore-shd-lavacrypt.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
softcore-shd-lavacrypt.exesvchost.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation softcore-shd-lavacrypt.exe Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 2928 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:
softcore-shd-lavacrypt.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\"" softcore-shd-lavacrypt.exe -
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
softcore-shd-lavacrypt.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum softcore-shd-lavacrypt.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 softcore-shd-lavacrypt.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 -
Suspicious use of SetThreadContext 1 IoCs
Processes:
svchost.exedescription pid process target process PID 2928 set thread context of 5112 2928 svchost.exe msbuild.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 1992 timeout.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
Processes:
softcore-shd-lavacrypt.exepowershell.exepid process 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 1804 softcore-shd-lavacrypt.exe 4104 powershell.exe 4104 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
softcore-shd-lavacrypt.exesvchost.exepowershell.exedescription pid process Token: SeDebugPrivilege 1804 softcore-shd-lavacrypt.exe Token: SeDebugPrivilege 2928 svchost.exe Token: SeDebugPrivilege 4104 powershell.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
softcore-shd-lavacrypt.execmd.execmd.exesvchost.exedescription pid process target process PID 1804 wrote to memory of 3232 1804 softcore-shd-lavacrypt.exe cmd.exe PID 1804 wrote to memory of 3232 1804 softcore-shd-lavacrypt.exe cmd.exe PID 1804 wrote to memory of 3356 1804 softcore-shd-lavacrypt.exe cmd.exe PID 1804 wrote to memory of 3356 1804 softcore-shd-lavacrypt.exe cmd.exe PID 3356 wrote to memory of 1992 3356 cmd.exe timeout.exe PID 3356 wrote to memory of 1992 3356 cmd.exe timeout.exe PID 3232 wrote to memory of 1656 3232 cmd.exe schtasks.exe PID 3232 wrote to memory of 1656 3232 cmd.exe schtasks.exe PID 3356 wrote to memory of 2928 3356 cmd.exe svchost.exe PID 3356 wrote to memory of 2928 3356 cmd.exe svchost.exe PID 2928 wrote to memory of 4104 2928 svchost.exe powershell.exe PID 2928 wrote to memory of 4104 2928 svchost.exe powershell.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 5112 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 3604 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 3604 2928 svchost.exe msbuild.exe PID 2928 wrote to memory of 3604 2928 svchost.exe msbuild.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\softcore-shd-lavacrypt.exe"C:\Users\Admin\AppData\Local\Temp\softcore-shd-lavacrypt.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\tmp1B1.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\msbuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"4⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"4⤵
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵
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_1f5gjlwm.5bt.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\tmp1B1.tmp.batFilesize
150B
MD55e101a2bfd2cf4f46343319f38251fb8
SHA179aae9ae385dc9a3eb9cafc843dc374c2e8a4579
SHA256927b88a53e8113a0b351c968e505f294b2f886f0efdb4444877eda39c06bc34a
SHA5122b7ef6539b985ca35dc8c1deda1a0fdc2efa82a80f156a7b0e2fc215d74b033bd62f67fd711403adc434df6d347395a6e19e735a32d9be9ebc4c4219b25fa9d8
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
408KB
MD5f1de359b4cb3e98d01e03f7f4aff75d7
SHA1ff190e4a989695c64f95495c0347498ec11eabd7
SHA256095a10fc0b992d28fd110516164eb608316a7d2bded28a2e0bd7aa66e895197c
SHA51221fe1331649696cf61fcae8054b7660803e73881302d975a0767422d7af3426bd559de17add4a00eaeaa43500c9a5b87a0012afeee8a80b273e23e1ad7315400
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memory/1804-3-0x0000024FFD690000-0x0000024FFD6F6000-memory.dmpFilesize
408KB
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memory/1804-9-0x00007FFE6DE90000-0x00007FFE6E951000-memory.dmpFilesize
10.8MB
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memory/1804-0-0x0000024FFB300000-0x0000024FFB308000-memory.dmpFilesize
32KB
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memory/1804-2-0x0000024FFD780000-0x0000024FFD790000-memory.dmpFilesize
64KB
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memory/1804-1-0x00007FFE6DE90000-0x00007FFE6E951000-memory.dmpFilesize
10.8MB
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memory/2928-13-0x00007FFE6D0C0000-0x00007FFE6DB81000-memory.dmpFilesize
10.8MB
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memory/2928-33-0x00007FFE6D0C0000-0x00007FFE6DB81000-memory.dmpFilesize
10.8MB
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memory/4104-27-0x000001F12D310000-0x000001F12D320000-memory.dmpFilesize
64KB
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memory/4104-20-0x000001F12D2A0000-0x000001F12D2C2000-memory.dmpFilesize
136KB
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memory/4104-24-0x00007FFE6D0C0000-0x00007FFE6DB81000-memory.dmpFilesize
10.8MB
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memory/4104-31-0x00007FFE6D0C0000-0x00007FFE6DB81000-memory.dmpFilesize
10.8MB
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memory/4104-25-0x000001F12D310000-0x000001F12D320000-memory.dmpFilesize
64KB
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memory/4104-26-0x000001F12D310000-0x000001F12D320000-memory.dmpFilesize
64KB
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memory/5112-34-0x0000000074CB0000-0x0000000075460000-memory.dmpFilesize
7.7MB
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memory/5112-28-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/5112-32-0x0000000074CB0000-0x0000000075460000-memory.dmpFilesize
7.7MB