Analysis
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max time kernel
157s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
26-06-2022 05:20
Static task
static1
Behavioral task
behavioral1
Sample
asdfg.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
asdfg.exe
Resource
win10v2004-20220414-en
General
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Target
asdfg.exe
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Size
768KB
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MD5
63645a9e1f5e77ba3c75366f3a14ab87
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SHA1
ed1497c47dc283118bbc57d49cd9f354785cf73d
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SHA256
2ced9b36b931b73b1d325bececd01f0e4fa6bd0fff98f8b76f2f45b473311cd0
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SHA512
4efce16194322c1288603ccd4ab6507fa5905debb137ce9b200e7a76e2c041c2d2aa720061b0679f2dfb5c21a668e12fe5eeb5fe99542f5a88d4bcdf103296f0
Malware Config
Extracted
recordbreaker
http://136.244.65.99/
http://140.82.52.55/
Signatures
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RecordBreaker
RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.
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Executes dropped EXE 1 IoCs
Processes:
Fvmidruhvvwkpvmfzdjkqkyhgrn.exepid process 2184 Fvmidruhvvwkpvmfzdjkqkyhgrn.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
asdfg.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation asdfg.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
asdfg.exedescription pid process target process PID 484 set thread context of 440 484 asdfg.exe asdfg.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exeasdfg.exepid process 2224 powershell.exe 2224 powershell.exe 484 asdfg.exe 484 asdfg.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
asdfg.exepowershell.exedescription pid process Token: SeDebugPrivilege 484 asdfg.exe Token: SeDebugPrivilege 2224 powershell.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
asdfg.exedescription pid process target process PID 484 wrote to memory of 2224 484 asdfg.exe powershell.exe PID 484 wrote to memory of 2224 484 asdfg.exe powershell.exe PID 484 wrote to memory of 2224 484 asdfg.exe powershell.exe PID 484 wrote to memory of 2184 484 asdfg.exe Fvmidruhvvwkpvmfzdjkqkyhgrn.exe PID 484 wrote to memory of 2184 484 asdfg.exe Fvmidruhvvwkpvmfzdjkqkyhgrn.exe PID 484 wrote to memory of 2184 484 asdfg.exe Fvmidruhvvwkpvmfzdjkqkyhgrn.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe PID 484 wrote to memory of 440 484 asdfg.exe asdfg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\asdfg.exe"C:\Users\Admin\AppData\Local\Temp\asdfg.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwADsAIABTAGUAdAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAJwBDADoAXAAnAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe"C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe"2⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\asdfg.exeC:\Users\Admin\AppData\Local\Temp\asdfg.exe2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exeFilesize
21KB
MD5f35a031075f711d05262e547d028ae86
SHA19c9e3bdf907fcfa959910cd9c752e297765ccf80
SHA2563c0c5786499c54c8f99e689f7e1bfc129e4d10c3de58c7917fc73044e12346b9
SHA512ff5235e388cc82f45e2dda4e93b66f752789b6cda1b6a4076af0171ab88ea422e8309a0f85abfa2d2e8ed5a760c3d83c4ec13fea9b566c0dd470a5c64c1a8a30
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C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exeFilesize
21KB
MD5f35a031075f711d05262e547d028ae86
SHA19c9e3bdf907fcfa959910cd9c752e297765ccf80
SHA2563c0c5786499c54c8f99e689f7e1bfc129e4d10c3de58c7917fc73044e12346b9
SHA512ff5235e388cc82f45e2dda4e93b66f752789b6cda1b6a4076af0171ab88ea422e8309a0f85abfa2d2e8ed5a760c3d83c4ec13fea9b566c0dd470a5c64c1a8a30
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memory/440-157-0x0000000000000000-mapping.dmp
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memory/440-161-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/440-160-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/440-158-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/484-133-0x00000000016F0000-0x00000000017A2000-memory.dmpFilesize
712KB
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memory/484-134-0x0000000005C30000-0x0000000005C4E000-memory.dmpFilesize
120KB
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memory/484-135-0x0000000005F00000-0x0000000005F92000-memory.dmpFilesize
584KB
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memory/484-130-0x0000000000E40000-0x0000000000F06000-memory.dmpFilesize
792KB
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memory/484-132-0x0000000005C80000-0x0000000005CD0000-memory.dmpFilesize
320KB
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memory/484-131-0x0000000005870000-0x00000000058E6000-memory.dmpFilesize
472KB
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memory/2184-156-0x0000000000D30000-0x0000000000D3A000-memory.dmpFilesize
40KB
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memory/2184-153-0x0000000000000000-mapping.dmp
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memory/2224-144-0x00000000061E0000-0x00000000061FA000-memory.dmpFilesize
104KB
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memory/2224-143-0x00000000075A0000-0x0000000007C1A000-memory.dmpFilesize
6.5MB
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memory/2224-146-0x00000000705A0000-0x00000000705EC000-memory.dmpFilesize
304KB
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memory/2224-147-0x0000000006F50000-0x0000000006F6E000-memory.dmpFilesize
120KB
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memory/2224-148-0x0000000006270000-0x000000000627A000-memory.dmpFilesize
40KB
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memory/2224-149-0x00000000072B0000-0x0000000007346000-memory.dmpFilesize
600KB
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memory/2224-150-0x0000000007270000-0x000000000727E000-memory.dmpFilesize
56KB
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memory/2224-151-0x0000000007370000-0x000000000738A000-memory.dmpFilesize
104KB
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memory/2224-152-0x0000000007360000-0x0000000007368000-memory.dmpFilesize
32KB
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memory/2224-145-0x0000000006F70000-0x0000000006FA2000-memory.dmpFilesize
200KB
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memory/2224-142-0x00000000056D0000-0x00000000056EE000-memory.dmpFilesize
120KB
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memory/2224-141-0x00000000056F0000-0x0000000005756000-memory.dmpFilesize
408KB
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memory/2224-140-0x0000000005550000-0x00000000055B6000-memory.dmpFilesize
408KB
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memory/2224-139-0x0000000004DD0000-0x0000000004DF2000-memory.dmpFilesize
136KB
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memory/2224-138-0x0000000004EB0000-0x00000000054D8000-memory.dmpFilesize
6.2MB
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memory/2224-137-0x00000000026F0000-0x0000000002726000-memory.dmpFilesize
216KB
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memory/2224-136-0x0000000000000000-mapping.dmp