Analysis
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max time kernel
132s -
max time network
121s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
14-11-2020 18:15
Static task
static1
Behavioral task
behavioral1
Sample
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe
Resource
win7v20201028
General
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Target
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe
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Size
1.1MB
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MD5
fa45eb7c0b88ebbd6546326782b87842
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SHA1
ef342f1963a3e881ff9753f580036eeffa0c81d7
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SHA256
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab
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SHA512
4c8f91872a72684f2960d452a7607378732c422ce1669d84abab28b70778a4a59e0a5f0653acfa0b33e6609066774c8ea013da7f7237f247ec0deabb42af124d
Malware Config
Extracted
Protocol: smtp- Host:
smtp.casalsmd.com - Port:
587 - Username:
carolina@casalsmd.com - Password:
Carolina123
Signatures
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Processes:
resource yara_rule behavioral2/memory/3924-1-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral2/memory/3924-3-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral2/memory/3924-4-0x0000000000400000-0x000000000051D000-memory.dmp upx -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Uses the VBS compiler for execution 1 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 11 whatismyipaddress.com 13 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription pid process target process PID 4000 set thread context of 3924 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 3924 set thread context of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 set thread context of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exevbc.exe9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exepid process 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 4016 vbc.exe 4016 vbc.exe 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exepid process 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription pid process Token: SeDebugPrivilege 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exepid process 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription pid process target process PID 4000 wrote to memory of 3924 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 4000 wrote to memory of 3924 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 4000 wrote to memory of 3924 4000 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 3012 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 3924 wrote to memory of 4016 3924 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe"C:\Users\Admin\AppData\Local\Temp\9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe"C:\Users\Admin\AppData\Local\Temp\9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\holderwb.txtMD5
f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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memory/3012-8-0x0000000000411654-mapping.dmp
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memory/3012-9-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/3012-7-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/3924-3-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/3924-5-0x00000000022B0000-0x0000000002338000-memory.dmpFilesize
544KB
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memory/3924-6-0x00000000022A2000-0x00000000022A3000-memory.dmpFilesize
4KB
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memory/3924-4-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/3924-1-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/3924-2-0x000000000051B4D0-mapping.dmp
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memory/4000-0-0x0000000000400000-0x0000000000517000-memory.dmpFilesize
1.1MB
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memory/4016-10-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/4016-11-0x0000000000442628-mapping.dmp
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memory/4016-12-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB