Analysis
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max time kernel
151s -
max time network
135s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
17-11-2020 14:47
Static task
static1
Behavioral task
behavioral1
Sample
INQUIRY.exe
Resource
win7v20201028
General
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Target
INQUIRY.exe
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Size
983KB
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MD5
f354ba5b2b1698b83201afe17fb068fa
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SHA1
72d40d81e7151a28178c74971a883991d6a33de0
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SHA256
04f6177bee237fe8f49353b9455c7367d6ab4d9e14a4139c9fccd7e4d349ce82
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SHA512
1e9898871da0f0ec35ef7b84258827a498fe885dbe8bbc135ca341d87281424c5ace42ae43436adc1d4fafe90658f234571f755518b89eba047c7a0e72cf6c9b
Malware Config
Extracted
Protocol: smtp- Host:
mail.iigcest.com - Port:
587 - Username:
ansaf@iigcest.com - Password:
Ans2016@
Signatures
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Processes:
resource yara_rule behavioral1/memory/892-1-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/892-4-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/892-5-0x0000000000400000-0x000000000051D000-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:
INQUIRY.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" INQUIRY.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:
INQUIRY.exeINQUIRY.exedescription pid process target process PID 2024 set thread context of 892 2024 INQUIRY.exe INQUIRY.exe PID 892 set thread context of 1076 892 INQUIRY.exe vbc.exe PID 892 set thread context of 1464 892 INQUIRY.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 777 IoCs
Processes:
INQUIRY.exeINQUIRY.exepid process 2024 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe 1444 INQUIRY.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
INQUIRY.exepid process 2024 INQUIRY.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
INQUIRY.exedescription pid process Token: SeDebugPrivilege 892 INQUIRY.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
INQUIRY.exepid process 892 INQUIRY.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
INQUIRY.exeINQUIRY.exedescription pid process target process PID 2024 wrote to memory of 892 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 892 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 892 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 892 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 1444 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 1444 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 1444 2024 INQUIRY.exe INQUIRY.exe PID 2024 wrote to memory of 1444 2024 INQUIRY.exe INQUIRY.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1076 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe PID 892 wrote to memory of 1464 892 INQUIRY.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY.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\INQUIRY.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- 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⤵
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C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe" 2 892 2592651442⤵
- 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
f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/892-9-0x0000000000220000-0x00000000002A3000-memory.dmpFilesize
524KB
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memory/892-1-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/892-2-0x000000000051B4D0-mapping.dmp
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memory/892-4-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/892-5-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
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memory/892-6-0x0000000001E70000-0x0000000001EF8000-memory.dmpFilesize
544KB
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memory/892-8-0x0000000001E62000-0x0000000001E63000-memory.dmpFilesize
4KB
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memory/1068-17-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmpFilesize
2.5MB
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memory/1076-13-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1076-11-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1076-12-0x0000000000411654-mapping.dmp
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memory/1444-7-0x0000000000400000-0x00000000004FC000-memory.dmpFilesize
1008KB
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memory/1444-3-0x0000000000000000-mapping.dmp
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memory/1464-15-0x0000000000442628-mapping.dmp
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memory/1464-14-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1464-16-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2024-0-0x0000000000400000-0x00000000004FC000-memory.dmpFilesize
1008KB