Analysis
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max time kernel
52s -
max time network
115s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
27-01-2023 12:46
Static task
static1
Behavioral task
behavioral1
Sample
23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
Resource
win10v2004-20220901-en
General
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Target
23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
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Size
477KB
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MD5
447f1d5a645314beb0b1d6b0f2f5119f
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SHA1
23ee744fa24aaada6ab0a81166c2f5466d29d502
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SHA256
850f818aca36188fff35a492275cd63ba81f6e48263faa669fb5e192165f2f92
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SHA512
2a4ed5f9a933ef0330c81672c17623143ee0c3693d6c56c85632c0bac2b7a8fb049bae0af904a1bd2a16db8ac338d78d0928e0edc7f5d866170d25c19407e752
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SSDEEP
3072:N36LY3qIwBzFyIR+DSbhsR2OsHas+8yqB1LuiCx8V8rIiJzQvstptE8z0N:N36hWsHtlLv8EiFES0
Malware Config
Signatures
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Detect PureCrypter injector 1 IoCs
Processes:
resource yara_rule behavioral1/memory/108-56-0x0000000006180000-0x00000000063E4000-memory.dmp family_purecrypter -
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Sfrdma = "\"C:\\Users\\Admin\\AppData\\Roaming\\Cffvs\\Sfrdma.exe\"" 23ee744fa24aaada6ab0a81166c2f5466d29d502.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 6 api.ipify.org 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exedescription pid process target process PID 108 set thread context of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exeipconfig.exepid process 1120 ipconfig.exe 1928 ipconfig.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
powershell.exepid process 2028 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exepowershell.exe23ee744fa24aaada6ab0a81166c2f5466d29d502.exedescription pid process Token: SeDebugPrivilege 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe Token: SeDebugPrivilege 2028 powershell.exe Token: SeDebugPrivilege 1392 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exepid process 1392 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.execmd.execmd.exedescription pid process target process PID 108 wrote to memory of 1340 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 108 wrote to memory of 1340 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 108 wrote to memory of 1340 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 108 wrote to memory of 1340 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 1340 wrote to memory of 1120 1340 cmd.exe ipconfig.exe PID 1340 wrote to memory of 1120 1340 cmd.exe ipconfig.exe PID 1340 wrote to memory of 1120 1340 cmd.exe ipconfig.exe PID 1340 wrote to memory of 1120 1340 cmd.exe ipconfig.exe PID 108 wrote to memory of 2028 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe powershell.exe PID 108 wrote to memory of 2028 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe powershell.exe PID 108 wrote to memory of 2028 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe powershell.exe PID 108 wrote to memory of 2028 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe powershell.exe PID 108 wrote to memory of 1768 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 108 wrote to memory of 1768 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 108 wrote to memory of 1768 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 108 wrote to memory of 1768 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe cmd.exe PID 1768 wrote to memory of 1928 1768 cmd.exe ipconfig.exe PID 1768 wrote to memory of 1928 1768 cmd.exe ipconfig.exe PID 1768 wrote to memory of 1928 1768 cmd.exe ipconfig.exe PID 1768 wrote to memory of 1928 1768 cmd.exe ipconfig.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe PID 108 wrote to memory of 1392 108 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe -
outlook_office_path 1 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe -
outlook_win_path 1 IoCs
Processes:
23ee744fa24aaada6ab0a81166c2f5466d29d502.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig/release2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\ipconfig.exeipconfig /release3⤵
- Gathers network information
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig/renew2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\ipconfig.exeipconfig /renew3⤵
- Gathers network information
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C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exeC:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/108-54-0x0000000000BA0000-0x0000000000C1C000-memory.dmpFilesize
496KB
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memory/108-55-0x0000000075B41000-0x0000000075B43000-memory.dmpFilesize
8KB
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memory/108-56-0x0000000006180000-0x00000000063E4000-memory.dmpFilesize
2.4MB
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memory/108-68-0x00000000050B0000-0x0000000005104000-memory.dmpFilesize
336KB
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memory/1120-58-0x0000000000000000-mapping.dmp
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memory/1340-57-0x0000000000000000-mapping.dmp
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memory/1392-79-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1392-69-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1392-70-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1392-75-0x000000000042ADCE-mapping.dmp
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memory/1392-77-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1392-73-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1392-72-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1392-74-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1768-65-0x0000000000000000-mapping.dmp
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memory/1928-66-0x0000000000000000-mapping.dmp
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memory/2028-64-0x000000006F680000-0x000000006FC2B000-memory.dmpFilesize
5.7MB
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memory/2028-63-0x000000006F680000-0x000000006FC2B000-memory.dmpFilesize
5.7MB
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memory/2028-62-0x000000006F680000-0x000000006FC2B000-memory.dmpFilesize
5.7MB
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memory/2028-60-0x0000000000000000-mapping.dmp