Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
15-07-2024 22:13
Static task
static1
Behavioral task
behavioral1
Sample
b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe
Resource
win10v2004-20240709-en
General
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Target
b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe
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Size
390KB
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MD5
197f7e5df1b88c7463bf569399372fde
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SHA1
3f186c11f71a0f6cc3104098faad68085b9aecef
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SHA256
b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c
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SHA512
519059adc2beafe13059264a3c6d1c4700ab053a9bbfa46f38d7a988420f55248f5a3963d88f0d9c50eeca4bbb050e9ac80978920b70c8e5c72f74827ac4cc52
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SSDEEP
6144:aZdVzZpL5aUyAUCjZBLnk8OUvK5sOyluCtSQ4cq0mzs/M4xsNTeei8wEO:a7pUUyOHR0mxk4yti8wEO
Malware Config
Extracted
stealc
default
http://85.28.47.101
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url_path
/f3ee98d7eec07fb9.php
Signatures
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Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 2948 RegAsm.exe 2948 RegAsm.exe -
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 web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2920 set thread context of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2948 RegAsm.exe 2948 RegAsm.exe 2948 RegAsm.exe 2948 RegAsm.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2920 wrote to memory of 2116 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 86 PID 2920 wrote to memory of 2116 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 86 PID 2920 wrote to memory of 2116 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 86 PID 2920 wrote to memory of 4528 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 87 PID 2920 wrote to memory of 4528 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 87 PID 2920 wrote to memory of 4528 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 87 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88 PID 2920 wrote to memory of 2948 2920 b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe"C:\Users\Admin\AppData\Local\Temp\b944709d6233b1135a0477331300691061efbdd40ad28355fa575d6cb560756c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:2116
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:4528
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2948
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571