Analysis
-
max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
25-12-2024 00:58
General
-
Target
11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe
-
Size
876KB
-
MD5
7ffee898b3e5bcb568717fc44dc81e8a
-
SHA1
40bc0a93b02b32daff22716c400aedcae4ba9c15
-
SHA256
11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62
-
SHA512
1327e940ae65514964f5973659ade4d8e906eda544e450dc8426c73d5a7c762bdf6f8523cd3440519a02d7a6e63f65dd7e128f0ba923560a3ed1ebb1a12d03bf
-
SSDEEP
12288:2/ZGm9Z6QZJ85HthwE2s0Wthtrp/pQY4TCSxlMBhVjfspoIClj8sNylXlTNQDg:C9/A5NWE3zTZEuSxl61ljXolXLQ
Malware Config
Extracted
asyncrat
0.5.7B
Default
polymoly.info:4199
AsyncMutex_6SI8OkPnk
-
delay
3
-
install
false
-
install_file
siliconsoft.exe
-
install_folder
%AppData%
Signatures
-
AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
-
Asyncrat family
-
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
-
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
-
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
-
Suspicious use of SetThreadContext 1 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
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 14 IoCs
-
Suspicious use of AdjustPrivilegeToken 3 IoCs
-
Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.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
-
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\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZrsnggYrjQaKQd.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZrsnggYrjQaKQd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7858.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
-
Filesize
18KB
MD5f0350f9d388b67d516421e351f4fea62
SHA18cde5f8473edba40e37903085f22359cf80190fe
SHA25671167ea0a25c381339684cca7ee5d74b87a76666217c30f7e2da31f40a49a112
SHA5126f5a76d30b3af58187ef5750e68e1908b5d4abf4498bc99ded60d8e815a0aae28aa129ab726092035e907b41e4357cb7827f8b4d241be1129ca08bd12aa2cd28
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD574094da700b809351292cb8fc3caf140
SHA1ef12330e2ba7940efffcc2db9cc84d0af6ceb6c5
SHA25606545f78afbb6f156c3fc4049719f4db15a809799a685f6add5fab26a62909c6
SHA512c146afdd421ab263e8ea535256cda448f3454632e7320917c20bd6b5700df9d5e2a7d424972d83d2f121aa4933ce42937872e79345713d13a09ea72fd393457e
-
Filesize
104KB
-
Filesize
56KB
-
Filesize
68KB
-
Filesize
40KB
-
Filesize
6.5MB
-
Filesize
104KB
-
Filesize
652KB
-
Filesize
304KB
-
Filesize
120KB
-
Filesize
7.7MB
-
Filesize
6.2MB
-
Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
408KB
-
Filesize
136KB
-
Filesize
216KB
-
Filesize
3.3MB
-
Filesize
304KB
-
Filesize
32KB
-
Filesize
304KB
-
Filesize
80KB
-
Filesize
600KB
-
Filesize
200KB
-
Filesize
7.7MB
-
Filesize
120KB
-
Filesize
872KB
-
Filesize
7.7MB
-
Filesize
624KB
-
Filesize
7.7MB
-
Filesize
4KB
-
Filesize
96KB
-
Filesize
408KB
-
Filesize
7.7MB
-
Filesize
40KB
-
Filesize
72KB
-
Filesize
584KB
-
Filesize
4KB
-
Filesize
5.6MB
-
Filesize
904KB
-
Filesize
72KB