Analysis
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max time kernel
27s -
max time network
105s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
06-08-2024 12:25
Static task
static1
Behavioral task
behavioral1
Sample
a45f737d63d4e31ccec2181edcb52530N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a45f737d63d4e31ccec2181edcb52530N.exe
Resource
win10v2004-20240802-en
General
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Target
a45f737d63d4e31ccec2181edcb52530N.exe
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Size
1.3MB
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MD5
a45f737d63d4e31ccec2181edcb52530
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SHA1
f15c95e761b5244401194a9715a55523623f94b6
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SHA256
4d74c1cc5bc8cc81ed8a50ba960faf005b12c555fcbd18da35b9c30429652e53
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SHA512
99a740f6507158d6c6e2c3a45ea79ac51d675abf9681ea453471b850ac89a3942e20c4041dff236b1b2a48ee3d4dec88b13d9a4a043fccb9e34ff4768126194a
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SSDEEP
24576:AqDEvCTbMWu7rQYlBQcBiT6rprG8aWcMhC/3X38K6aR5sVNmM:ATvC/MTQYxsWR7aWvs8KbXGc
Malware Config
Signatures
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Detected Nirsoft tools 11 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral1/memory/2920-12-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/2920-14-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/2920-16-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/2740-24-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2740-22-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2740-25-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2740-27-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2752-28-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/2752-30-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/2752-31-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/2752-37-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
NirSoft MailPassView 7 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/2920-12-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/2920-14-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/2920-16-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/2740-24-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2740-22-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2740-25-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2740-27-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 7 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/2920-12-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/2920-14-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/2920-16-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/2752-28-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/2752-30-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/2752-31-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/2752-37-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.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 4 whatismyipaddress.com 6 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
a45f737d63d4e31ccec2181edcb52530N.exeRegSvcs.exedescription pid process target process PID 2200 set thread context of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2920 set thread context of 2740 2920 RegSvcs.exe vbc.exe PID 2920 set thread context of 2752 2920 RegSvcs.exe vbc.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
a45f737d63d4e31ccec2181edcb52530N.exeRegSvcs.exevbc.exevbc.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a45f737d63d4e31ccec2181edcb52530N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
vbc.exepid process 2752 vbc.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
a45f737d63d4e31ccec2181edcb52530N.exepid process 2200 a45f737d63d4e31ccec2181edcb52530N.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 2920 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
a45f737d63d4e31ccec2181edcb52530N.exepid process 2200 a45f737d63d4e31ccec2181edcb52530N.exe 2200 a45f737d63d4e31ccec2181edcb52530N.exe -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
a45f737d63d4e31ccec2181edcb52530N.exepid process 2200 a45f737d63d4e31ccec2181edcb52530N.exe 2200 a45f737d63d4e31ccec2181edcb52530N.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegSvcs.exepid process 2920 RegSvcs.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
a45f737d63d4e31ccec2181edcb52530N.exeRegSvcs.exedescription pid process target process PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2200 wrote to memory of 2920 2200 a45f737d63d4e31ccec2181edcb52530N.exe RegSvcs.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2740 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe PID 2920 wrote to memory of 2752 2920 RegSvcs.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a45f737d63d4e31ccec2181edcb52530N.exe"C:\Users\Admin\AppData\Local\Temp\a45f737d63d4e31ccec2181edcb52530N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2200 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\a45f737d63d4e31ccec2181edcb52530N.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2920 -
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⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:2740
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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⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2752
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84