Analysis
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max time kernel
150s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
16-07-2024 10:35
Static task
static1
Behavioral task
behavioral1
Sample
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe
Resource
win10v2004-20240709-en
General
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Target
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe
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Size
683KB
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MD5
4defc86e258d002b2c01eda4822d6331
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SHA1
b6aa5ccd6722d8c7c55536854438e4de9d713bf5
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SHA256
159d09cdbd90e5ce221f9ca7fd30646268cb2521d4279d707b346602b0eda59d
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SHA512
699b6f4435c77aeab071dd151bb5b38f5e34384022f31d75904b009900113f4cc26f66bfda28f7540293fac7715bd21d985bb72294875fa3ee3886123008ecce
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SSDEEP
12288:4Szm0W4DTPa1RzO3Wmb++3k8O/l9EUJceUKdi3HIn7Ai+/TbMRTYIc:4Km0WEPa3O3WER3zi9cMEXTb5I
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
yellow147
Signatures
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Detected Nirsoft tools 9 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral1/memory/2236-16-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral1/memory/2236-18-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral1/memory/2236-17-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral1/memory/2720-23-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2720-24-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2720-26-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/3040-27-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/3040-28-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/3040-34-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
NirSoft MailPassView 6 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/2236-16-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral1/memory/2236-18-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral1/memory/2236-17-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral1/memory/2720-23-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2720-24-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2720-26-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 6 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/2236-16-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral1/memory/2236-18-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral1/memory/2236-17-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral1/memory/3040-27-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/3040-28-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/3040-34-0x0000000000400000-0x0000000000458000-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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegAsm.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" RegAsm.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 4 whatismyipaddress.com 6 whatismyipaddress.com 7 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exeRegAsm.exedescription pid Process procid_target PID 2932 set thread context of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2236 set thread context of 2720 2236 RegAsm.exe 34 PID 2236 set thread context of 3040 2236 RegAsm.exe 35 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exeRegAsm.exepid Process 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe 2236 RegAsm.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exepid Process 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid Process Token: SeDebugPrivilege 2236 RegAsm.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exeRegAsm.exedescription pid Process procid_target PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2932 wrote to memory of 2236 2932 4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe 32 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 2720 2236 RegAsm.exe 34 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35 PID 2236 wrote to memory of 3040 2236 RegAsm.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2932 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\4defc86e258d002b2c01eda4822d6331_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236 -
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
PID:2720
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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⤵PID:3040
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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