Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
12-03-2024 02:06
General
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Target
$TEMP/syncUpd.exe
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Size
282KB
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MD5
54e0220b6f9b4f8f64382b71c6033595
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SHA1
1f599189588a7a174a6b8a4587ae0df5c15bdd6f
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SHA256
47bccced008024236587fbe59d8419a52888f7b50b01cc6c7dc92101a0885607
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SHA512
0c4e27554ee5a090f8e8e1fa0b901cc5cc90fb6f1a3fb68c4a991096d8ea53a07e452d1ad119b046107deffe34173b21a5ff2f0062b98ae9b23945ea05ad8708
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SSDEEP
3072:h+yppW19jNp4lE4XPx8eHoqKediatEpPbqz8s93GNeL8MOi9P4m8Z:h5m1VN+eImmrdiaAezP8eQtE4h
Malware Config
Extracted
stealc
http://185.172.128.145
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url_path
/3cd2b41cbde8fc9c.php
Signatures
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Stealc
Stealc is an infostealer written in C++.
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Detect binaries embedding considerable number of MFA browser extension IDs. 8 IoCs
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Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 8 IoCs
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 7 IoCs
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Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
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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 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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe"C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 24442⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4748 -ip 47481⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
22.2MB
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Filesize
156KB
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Filesize
1024KB
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Filesize
972KB
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Filesize
22.2MB
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Filesize
1024KB
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Filesize
22.2MB
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Filesize
22.2MB
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Filesize
22.2MB
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Filesize
22.2MB
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Filesize
156KB
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Filesize
22.2MB
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Filesize
22.2MB