Analysis
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max time kernel
45s -
max time network
99s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
14-11-2022 15:33
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
General
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Target
file.exe
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Size
399KB
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MD5
107fe0abad964dfdf1045cd8f7524679
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SHA1
b1fe25b56e6041871c3e901c4aa4f73ad26e8e61
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SHA256
e58392645053aec0b085aef877aa4692d5253f51535798ba18d7b7165d73390f
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SHA512
a59acd4d89550f0f7c1b65a5cbbf535bf15d121dd253a1638ff0324348aa63b6c7d90bdac4a5184e5aa0341f28df4db69084854d443d07266cb13e98ecc88c26
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SSDEEP
6144:wTtwLnvOhl+5viEvbo60CrApOFBcVIOkA6UEn2E1a:wT6LvOhSiETozCEpOF+Hk9UUv
Malware Config
Extracted
vidar
55.6
937
https://t.me/seclab_new
https://raw.githubusercontent.com/sebekeloytfu/simple-bash-scripts/master/calculator.sh
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profile_id
937
Signatures
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Deletes itself 1 IoCs
Processes:
cmd.exepid process 1548 cmd.exe -
Loads dropped DLL 2 IoCs
Processes:
file.exepid process 1324 file.exe 1324 file.exe -
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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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:
file.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString file.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1156 timeout.exe -
Processes:
file.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 file.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 file.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
file.exepid process 1324 file.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
file.execmd.exedescription pid process target process PID 1324 wrote to memory of 1548 1324 file.exe cmd.exe PID 1324 wrote to memory of 1548 1324 file.exe cmd.exe PID 1324 wrote to memory of 1548 1324 file.exe cmd.exe PID 1324 wrote to memory of 1548 1324 file.exe cmd.exe PID 1548 wrote to memory of 1156 1548 cmd.exe timeout.exe PID 1548 wrote to memory of 1156 1548 cmd.exe timeout.exe PID 1548 wrote to memory of 1156 1548 cmd.exe timeout.exe PID 1548 wrote to memory of 1156 1548 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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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/1156-82-0x0000000000000000-mapping.dmp
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memory/1324-54-0x0000000000268000-0x0000000000295000-memory.dmpFilesize
180KB
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memory/1324-56-0x0000000000268000-0x0000000000295000-memory.dmpFilesize
180KB
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memory/1324-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmpFilesize
8KB
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memory/1324-57-0x0000000000870000-0x00000000008BB000-memory.dmpFilesize
300KB
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memory/1324-58-0x0000000000400000-0x0000000000867000-memory.dmpFilesize
4.4MB
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memory/1324-59-0x0000000061E00000-0x0000000061EF3000-memory.dmpFilesize
972KB
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memory/1324-80-0x0000000000268000-0x0000000000295000-memory.dmpFilesize
180KB
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memory/1324-81-0x0000000000400000-0x0000000000867000-memory.dmpFilesize
4.4MB
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memory/1548-79-0x0000000000000000-mapping.dmp