Analysis
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max time kernel
155s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-it -
resource tags
arch:x64arch:x86image:win10v2004-20220812-itlocale:it-itos:windows10-2004-x64systemwindows -
submitted
30-11-2022 07:44
Static task
static1
General
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Target
build2.exe
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Size
258KB
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MD5
b9212ded69fae1fa1fb5d6db46a9fb76
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SHA1
58face4245646b1cd379ee49f03a701eab1642be
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SHA256
7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
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SHA512
09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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SSDEEP
6144:YdAhH6pftFbsb8XODU4aLTwzLs0+mKnBtt:VUpftVcwIU4aLTwz5tItt
Malware Config
Extracted
vidar
56
517
https://t.me/asifrazatg
https://steamcommunity.com/profiles/76561199439929669
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profile_id
517
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
build2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation build2.exe -
Loads dropped DLL 2 IoCs
Processes:
build2.exepid process 4416 build2.exe 4416 build2.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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Suspicious use of SetThreadContext 1 IoCs
Processes:
build2.exedescription pid process target process PID 5016 set thread context of 4416 5016 build2.exe build2.exe -
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:
build2.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5076 timeout.exe -
Processes:
build2.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4 build2.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4\Blob = 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 build2.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
build2.exepid process 4416 build2.exe 4416 build2.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
build2.exebuild2.execmd.exedescription pid process target process PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 5016 wrote to memory of 4416 5016 build2.exe build2.exe PID 4416 wrote to memory of 4072 4416 build2.exe cmd.exe PID 4416 wrote to memory of 4072 4416 build2.exe cmd.exe PID 4416 wrote to memory of 4072 4416 build2.exe cmd.exe PID 4072 wrote to memory of 5076 4072 cmd.exe timeout.exe PID 4072 wrote to memory of 5076 4072 cmd.exe timeout.exe PID 4072 wrote to memory of 5076 4072 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\build2.exe"C:\Users\Admin\AppData\Local\Temp\build2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Users\Admin\AppData\Local\Temp\build2.exe"C:\Users\Admin\AppData\Local\Temp\build2.exe"2⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\build2.exe" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4072 -
C:\Windows\SysWOW64\timeout.exetimeout /t 64⤵
- Delays execution with timeout.exe
PID:5076
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571