Analysis
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max time kernel
296s -
max time network
302s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
18-02-2023 22:17
Static task
static1
Behavioral task
behavioral1
Sample
d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe
Resource
win7-20221111-en
General
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Target
d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe
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Size
591KB
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MD5
401240d7a40901b74d85ac7620b83915
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SHA1
3f512a8ff2f7d143a14badbc6191c3b8e09d23f6
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SHA256
d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7
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SHA512
996da140a45b98cfd0e8f803037296b1b73cb01793c6302784d2bd1ae6fb3a58b17f171e6eefd406b73637457031fb1363ff9c2f97ca6eaeb71a51c1bd0f5cd2
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SSDEEP
12288:Yr8m6f8WlGdAGUow9aR9IlzTmKa188LY1dPijURkY6z7ZIahRZ5GcrO:bIeG5IHgoiqjqZIS5GcrO
Malware Config
Extracted
asyncrat
0.5.7B
Default
100.42.65.218:8080
100.42.65.218:6606
AsyncMutex_6SI8OkPnk
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delay
3
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install
false
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install_file
winsyd.exe
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install_folder
%AppData%
Signatures
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Async RAT payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1912-67-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat behavioral1/memory/1912-68-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat behavioral1/memory/1912-70-0x000000000040C71E-mapping.dmp asyncrat behavioral1/memory/1912-69-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat behavioral1/memory/1912-72-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat behavioral1/memory/1912-74-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat -
Suspicious use of SetThreadContext 1 IoCs
Processes:
d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exedescription pid process target process PID 840 set thread context of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
powershell.exepid process 1340 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1340 powershell.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exedescription pid process target process PID 840 wrote to memory of 1340 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe powershell.exe PID 840 wrote to memory of 1340 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe powershell.exe PID 840 wrote to memory of 1340 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe powershell.exe PID 840 wrote to memory of 1340 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe powershell.exe PID 840 wrote to memory of 580 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe schtasks.exe PID 840 wrote to memory of 580 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe schtasks.exe PID 840 wrote to memory of 580 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe schtasks.exe PID 840 wrote to memory of 580 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe schtasks.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe PID 840 wrote to memory of 1912 840 d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe"C:\Users\Admin\AppData\Local\Temp\d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe"1⤵
- Suspicious use of SetThreadContext
- 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\Roaming\LGlGutVnWHPDKx.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LGlGutVnWHPDKx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp30.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp30.tmpFilesize
1KB
MD58bbbf6237932f375e0c901db8e2b8505
SHA137b2bc762a682dcc0cc8ad1f7af879aea670a1b4
SHA2567cf0a8a5fd7bdd03a23a881e5758c5aa28d844d0e2daa233b9b852aca91569ed
SHA512b27439b0f88c657c79c40f0ad8dab51c402a6dd348b2385b86f9ddc5d223b707f920293798dc82391ff9c9aabb789e020118465eb36b4a7d59bfb7e72d66d8e8
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memory/580-60-0x0000000000000000-mapping.dmp
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memory/840-75-0x0000000004B25000-0x0000000004B36000-memory.dmpFilesize
68KB
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memory/840-55-0x0000000075A91000-0x0000000075A93000-memory.dmpFilesize
8KB
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memory/840-56-0x0000000000380000-0x0000000000398000-memory.dmpFilesize
96KB
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memory/840-57-0x0000000004A90000-0x0000000004AFE000-memory.dmpFilesize
440KB
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memory/840-58-0x0000000004B25000-0x0000000004B36000-memory.dmpFilesize
68KB
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memory/840-63-0x0000000004280000-0x0000000004294000-memory.dmpFilesize
80KB
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memory/840-54-0x0000000000DA0000-0x0000000000E38000-memory.dmpFilesize
608KB
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memory/1340-59-0x0000000000000000-mapping.dmp
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memory/1340-77-0x000000006B0B0000-0x000000006B65B000-memory.dmpFilesize
5.7MB
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memory/1340-76-0x000000006B0B0000-0x000000006B65B000-memory.dmpFilesize
5.7MB
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memory/1912-65-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1912-70-0x000000000040C71E-mapping.dmp
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memory/1912-69-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1912-72-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1912-74-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1912-68-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1912-67-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1912-64-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB