Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 14:05
Static task
static1
Behavioral task
behavioral1
Sample
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe
Resource
win7-20220812-en
General
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Target
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe
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Size
856KB
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MD5
6796097989ff8aa921d83d2a3553bb21
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SHA1
ccd7805053b00b3e14b703517662a0036f95acbb
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SHA256
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9
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SHA512
12262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae
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SSDEEP
24576:rEe1hYtljbiiIq9r+EpPinL6dTVUnCzoChg9:oeI/jvIq9v86dTVUnCzoCc
Malware Config
Extracted
Protocol: smtp- Host:
mail.acsbaroda.com - Port:
587 - Username:
[email protected] - Password:
Admin1975*
Signatures
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NirSoft MailPassView 11 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/1564-72-0x0000000000400000-0x000000000048C000-memory.dmp MailPassView behavioral1/memory/1564-74-0x0000000000400000-0x000000000048C000-memory.dmp MailPassView behavioral1/memory/1564-75-0x0000000000400000-0x000000000048C000-memory.dmp MailPassView behavioral1/memory/1564-76-0x000000000048599E-mapping.dmp MailPassView behavioral1/memory/1564-80-0x0000000000400000-0x000000000048C000-memory.dmp MailPassView behavioral1/memory/1564-82-0x0000000000400000-0x000000000048C000-memory.dmp MailPassView behavioral1/memory/1924-87-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1924-88-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1924-91-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1924-93-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1924-101-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 11 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/1564-72-0x0000000000400000-0x000000000048C000-memory.dmp WebBrowserPassView behavioral1/memory/1564-74-0x0000000000400000-0x000000000048C000-memory.dmp WebBrowserPassView behavioral1/memory/1564-75-0x0000000000400000-0x000000000048C000-memory.dmp WebBrowserPassView behavioral1/memory/1564-76-0x000000000048599E-mapping.dmp WebBrowserPassView behavioral1/memory/1564-80-0x0000000000400000-0x000000000048C000-memory.dmp WebBrowserPassView behavioral1/memory/1564-82-0x0000000000400000-0x000000000048C000-memory.dmp WebBrowserPassView behavioral1/memory/328-94-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/328-95-0x0000000000442628-mapping.dmp WebBrowserPassView behavioral1/memory/328-98-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/328-99-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/328-103-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 16 IoCs
Processes:
resource yara_rule behavioral1/memory/1564-72-0x0000000000400000-0x000000000048C000-memory.dmp Nirsoft behavioral1/memory/1564-74-0x0000000000400000-0x000000000048C000-memory.dmp Nirsoft behavioral1/memory/1564-75-0x0000000000400000-0x000000000048C000-memory.dmp Nirsoft behavioral1/memory/1564-76-0x000000000048599E-mapping.dmp Nirsoft behavioral1/memory/1564-80-0x0000000000400000-0x000000000048C000-memory.dmp Nirsoft behavioral1/memory/1564-82-0x0000000000400000-0x000000000048C000-memory.dmp Nirsoft behavioral1/memory/1924-87-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1924-88-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1924-91-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1924-93-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/328-94-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/328-95-0x0000000000442628-mapping.dmp Nirsoft behavioral1/memory/328-98-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/328-99-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1924-101-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/328-103-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 2 IoCs
Processes:
PcHealth.exePcHealth.exepid process 2036 PcHealth.exe 1564 PcHealth.exe -
Loads dropped DLL 2 IoCs
Processes:
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exepid process 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe -
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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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 whatismyipaddress.com -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exePcHealth.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum PcHealth.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 PcHealth.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
PcHealth.exePcHealth.exedescription pid process target process PID 2036 set thread context of 1564 2036 PcHealth.exe PcHealth.exe PID 1564 set thread context of 1924 1564 PcHealth.exe vbc.exe PID 1564 set thread context of 328 1564 PcHealth.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 60 IoCs
Processes:
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exePcHealth.exePcHealth.exepid process 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 1564 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe 2036 PcHealth.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exePcHealth.exePcHealth.exedescription pid process Token: SeDebugPrivilege 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe Token: SeDebugPrivilege 2036 PcHealth.exe Token: SeDebugPrivilege 1564 PcHealth.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PcHealth.exepid process 1564 PcHealth.exe -
Suspicious use of WriteProcessMemory 41 IoCs
Processes:
5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.execmd.exePcHealth.exePcHealth.exedescription pid process target process PID 1652 wrote to memory of 2044 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe cmd.exe PID 1652 wrote to memory of 2044 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe cmd.exe PID 1652 wrote to memory of 2044 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe cmd.exe PID 1652 wrote to memory of 2044 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe cmd.exe PID 2044 wrote to memory of 2016 2044 cmd.exe reg.exe PID 2044 wrote to memory of 2016 2044 cmd.exe reg.exe PID 2044 wrote to memory of 2016 2044 cmd.exe reg.exe PID 2044 wrote to memory of 2016 2044 cmd.exe reg.exe PID 1652 wrote to memory of 2036 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe PcHealth.exe PID 1652 wrote to memory of 2036 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe PcHealth.exe PID 1652 wrote to memory of 2036 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe PcHealth.exe PID 1652 wrote to memory of 2036 1652 5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 2036 wrote to memory of 1564 2036 PcHealth.exe PcHealth.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 1924 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe PID 1564 wrote to memory of 328 1564 PcHealth.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe"C:\Users\Admin\AppData\Local\Temp\5f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9.exe"1⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\WindowsNT\CurrentVersion\Windows" /f /v "Load" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\PcHealth.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2044 -
C:\Windows\SysWOW64\reg.exereg add "HKCU\Software\Microsoft\WindowsNT\CurrentVersion\Windows" /f /v "Load" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\PcHealth.exe"3⤵PID:2016
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C:\Users\Admin\AppData\Roaming\PcHealth.exe"C:\Users\Admin\AppData\Roaming\PcHealth.exe"2⤵
- Executes dropped EXE
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Roaming\PcHealth.exe"C:\Users\Admin\AppData\Roaming\PcHealth.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1564 -
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"4⤵
- Accesses Microsoft Outlook accounts
PID:1924
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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"4⤵PID:328
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
856KB
MD56796097989ff8aa921d83d2a3553bb21
SHA1ccd7805053b00b3e14b703517662a0036f95acbb
SHA2565f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9
SHA51212262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae
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Filesize
856KB
MD56796097989ff8aa921d83d2a3553bb21
SHA1ccd7805053b00b3e14b703517662a0036f95acbb
SHA2565f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9
SHA51212262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae
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Filesize
856KB
MD56796097989ff8aa921d83d2a3553bb21
SHA1ccd7805053b00b3e14b703517662a0036f95acbb
SHA2565f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9
SHA51212262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae
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Filesize
856KB
MD56796097989ff8aa921d83d2a3553bb21
SHA1ccd7805053b00b3e14b703517662a0036f95acbb
SHA2565f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9
SHA51212262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae
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Filesize
856KB
MD56796097989ff8aa921d83d2a3553bb21
SHA1ccd7805053b00b3e14b703517662a0036f95acbb
SHA2565f81c6852cc89916688dd380bf23185a1fcf2cd7fb5a93da32d22644ef0769c9
SHA51212262825e17afac04f28ff4eb986aaccf0f615f010fd9e8e043f423c65be64ad8a2508b9bce1da901e20d5770a97af447a384d5c9a76d162d19ba51a288747ae