Analysis
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max time kernel
136s -
max time network
147s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-11-2020 14:34
Static task
static1
Behavioral task
behavioral1
Sample
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe
Resource
win7v20201028
General
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Target
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe
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Size
1.1MB
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MD5
223188d943b900a8afedb02ff93b5f2a
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SHA1
7637f0303c5f5896a7cf28d3ce5643bf23ee1eaf
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SHA256
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2
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SHA512
f84acd2436cf7cb82100341446cf557e1c5953c82318b26088d1f6a4c7398b913f1fd8b0c89af2900627b220f2a2a03cd65294deb4cc69fc77800bd86663f598
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/1820-1-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1820-3-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1820-4-0x0000000000400000-0x000000000051D000-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:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.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" 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.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:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exedescription pid process target process PID 844 set thread context of 1820 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe PID 1820 set thread context of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 set thread context of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exepid process 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exepid process 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exedescription pid process Token: SeDebugPrivilege 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exepid process 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exedescription pid process target process PID 844 wrote to memory of 1820 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe PID 844 wrote to memory of 1820 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe PID 844 wrote to memory of 1820 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe PID 844 wrote to memory of 1820 844 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 812 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe PID 1820 wrote to memory of 1984 1820 9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe"C:\Users\Admin\AppData\Local\Temp\9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.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\9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.exe"C:\Users\Admin\AppData\Local\Temp\9f176d02e8b82e189b13f8c947e59973efb2115639f7e21187fe7e419d01c9c2.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/812-9-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/812-11-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/812-10-0x0000000000411654-mapping.dmp
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memory/844-0-0x0000000000400000-0x0000000000515000-memory.dmpFilesize
1.1MB
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memory/1004-15-0x000007FEF81B0000-0x000007FEF842A000-memory.dmpFilesize
2.5MB
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memory/1820-4-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/1820-7-0x0000000000220000-0x00000000002A3000-memory.dmpFilesize
524KB
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memory/1820-6-0x0000000002172000-0x0000000002173000-memory.dmpFilesize
4KB
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memory/1820-5-0x0000000000580000-0x0000000000608000-memory.dmpFilesize
544KB
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memory/1820-3-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/1820-2-0x000000000051B4D0-mapping.dmp
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memory/1820-1-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/1984-12-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1984-14-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1984-13-0x0000000000442628-mapping.dmp