Analysis
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max time kernel
135s -
max time network
121s -
platform
windows7_x64 -
resource
win7v20201028 -
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 behavioral1/memory/1348-1-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1348-3-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1348-4-0x0000000000400000-0x000000000051D000-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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 whatismyipaddress.com 8 whatismyipaddress.com 9 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription pid process target process PID 1880 set thread context of 1348 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 1348 set thread context of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 set thread context of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exepid process 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exepid process 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription pid process Token: SeDebugPrivilege 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exepid process 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exedescription pid process target process PID 1880 wrote to memory of 1348 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 1880 wrote to memory of 1348 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 1880 wrote to memory of 1348 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 1880 wrote to memory of 1348 1880 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1856 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 9a307ff705e2a745e18ada695dc558e509d6237cde4ddaadd9014790faa8c4ab.exe vbc.exe PID 1348 wrote to memory of 1036 1348 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⤵
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
f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/280-15-0x000007FEF7810000-0x000007FEF7A8A000-memory.dmpFilesize
2.5MB
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memory/1036-12-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1036-14-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1036-13-0x0000000000442628-mapping.dmp
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memory/1348-4-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/1348-6-0x0000000002062000-0x0000000002063000-memory.dmpFilesize
4KB
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memory/1348-7-0x00000000002F0000-0x0000000000373000-memory.dmpFilesize
524KB
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memory/1348-5-0x0000000001E70000-0x0000000001EF8000-memory.dmpFilesize
544KB
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memory/1348-3-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/1348-2-0x000000000051B4D0-mapping.dmp
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memory/1348-1-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/1856-9-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1856-10-0x0000000000411654-mapping.dmp
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memory/1856-11-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1880-0-0x0000000000400000-0x0000000000517000-memory.dmpFilesize
1.1MB