Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
28-04-2024 17:56
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20240221-en
General
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Target
tmp.exe
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Size
307KB
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MD5
d1e360f356f8ac430b5fed34b3a0a660
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SHA1
7aab5d765bc1c3d29510804bb5dfa14a47722218
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SHA256
b708baa9b529adc2da4c9dfeef1a7c62d1a9cc231cb82561334de8c0a99cbbdb
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SHA512
705060b9a70166724a68000f39142cee88d0951b33612f03619f6c40a2c9561a98f9bcdd5e210998d3cef9107b49cc560da22f7749c18a59d4525b593c2166fd
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SSDEEP
3072:J5a5c3ZPpgukTT1ni8+WbLOT4iNm1jktYRflHMWUn72Z+qPz+yWYeiHEFI7I8NU:F5GuaZRIFmBSYtlHm++q7GmEFMNU
Malware Config
Extracted
stealc
http://185.172.128.151
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url_path
/7043a0c6a68d9c65.php
Signatures
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Downloads MZ/PE file
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Deletes itself 1 IoCs
Processes:
cmd.exepid process 2876 cmd.exe -
Loads dropped DLL 2 IoCs
Processes:
tmp.exepid process 2904 tmp.exe 2904 tmp.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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
tmp.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 tmp.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString tmp.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2352 timeout.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
tmp.exepid process 2904 tmp.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
tmp.execmd.exedescription pid process target process PID 2904 wrote to memory of 2876 2904 tmp.exe cmd.exe PID 2904 wrote to memory of 2876 2904 tmp.exe cmd.exe PID 2904 wrote to memory of 2876 2904 tmp.exe cmd.exe PID 2904 wrote to memory of 2876 2904 tmp.exe cmd.exe PID 2876 wrote to memory of 2352 2876 cmd.exe timeout.exe PID 2876 wrote to memory of 2352 2876 cmd.exe timeout.exe PID 2876 wrote to memory of 2352 2876 cmd.exe timeout.exe PID 2876 wrote to memory of 2352 2876 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\tmp.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:2352
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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\ProgramData\mozglue.dllFilesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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\ProgramData\nss3.dllFilesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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memory/2904-1-0x0000000001B80000-0x0000000001C80000-memory.dmpFilesize
1024KB
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memory/2904-2-0x0000000000220000-0x0000000000247000-memory.dmpFilesize
156KB
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memory/2904-3-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB
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memory/2904-4-0x0000000061E00000-0x0000000061EF3000-memory.dmpFilesize
972KB
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memory/2904-65-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB
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memory/2904-68-0x0000000001B80000-0x0000000001C80000-memory.dmpFilesize
1024KB
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memory/2904-69-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB