Analysis
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max time kernel
135s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
17-10-2024 15:39
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20241007-en
General
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Target
file.exe
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Size
1.7MB
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MD5
ccb3b74d378733c21fc584875b5a8b07
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SHA1
6779b4d3cfff750eeeeba77ec7abf4e206cc3931
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SHA256
0b1fadc136b71d5961664a2a1dc8e340c28324d3d8637667f1280bee4c3d12db
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SHA512
ab0739b93d6db261cfb6a1ea0efc759eac6f883ba06dd2ca516bb9415a022215a1b35ccb5bac0c5b90d37878e509e0bb4da4645c312305b03a957b5bf61d2d58
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SSDEEP
49152:cpc6JirvEsh7B4/6LXhzmgvznCZzzg0zsYv:cp0rvdh7Sm1Pwzzg0zsY
Malware Config
Extracted
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
1234567Dd
Signatures
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Detected Nirsoft tools 4 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral1/memory/3704-491-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/3704-496-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/3816-501-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/3816-511-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/3704-491-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/3704-496-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/3816-501-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/3816-511-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" file.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.
flow ioc 2 whatismyipaddress.com 4 whatismyipaddress.com 5 whatismyipaddress.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
pid Process 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe 2872 file.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2872 set thread context of 3704 2872 file.exe 31 PID 2872 set thread context of 3816 2872 file.exe 32 -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3816 vbc.exe 2872 file.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2872 file.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2872 file.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3704 2872 file.exe 31 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32 PID 2872 wrote to memory of 3816 2872 file.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2872 -
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"2⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:3704
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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"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3816
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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