Analysis
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max time kernel
102s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
23-11-2024 21:56
General
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Target
a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe
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Size
569KB
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MD5
baafb44a3a3f70dd1e009c04b9c88297
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SHA1
25b542946dd20f80773387a44352696f58f76cba
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SHA256
a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402
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SHA512
1ebd9f5d3515a973a4c45cfbbdc3fb227f457d2fbba03873eefc397cf0da72a29a12887466b3e2795a90b2a3b8c95024319324f075275421f39eac8b49ed0f11
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SSDEEP
12288:f20IpfjSt64LnnhlgVRZ7K/Tk7SP0q6qKLnHEbpt26XE85RSKoTx:fPemtrLnY7ETMi07ZCU
Malware Config
Extracted
asyncrat
0.5.7B
Default
194.5.97.229:1195
AsyncMutex_6SI8OkPnk
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delay
3
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install
false
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install_folder
%AppData%
Signatures
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AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
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Asyncrat family
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wHlcNFpFfEV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1F5A.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"2⤵
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
592KB
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Filesize
5.6MB
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Filesize
584KB
-
Filesize
40KB
-
Filesize
7.7MB
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Filesize
56KB
-
Filesize
4KB
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Filesize
7.7MB
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Filesize
624KB
-
Filesize
208KB
-
Filesize
408KB
-
Filesize
4KB
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Filesize
7.7MB
-
Filesize
104KB
-
Filesize
304KB
-
Filesize
7.7MB
-
Filesize
408KB
-
Filesize
136KB
-
Filesize
7.7MB
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Filesize
7.7MB
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Filesize
3.3MB
-
Filesize
32KB
-
Filesize
120KB
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Filesize
6.2MB
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Filesize
304KB
-
Filesize
200KB
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Filesize
7.7MB
-
Filesize
120KB
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Filesize
652KB
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Filesize
216KB
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Filesize
6.5MB
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Filesize
40KB
-
Filesize
600KB
-
Filesize
68KB
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Filesize
56KB
-
Filesize
80KB
-
Filesize
104KB
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Filesize
7.7MB
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Filesize
72KB
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Filesize
7.7MB