Analysis
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max time kernel
91s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
22-09-2022 18:15
Behavioral task
behavioral1
Sample
LockBit3Builder/Build.bat
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
LockBit3Builder/Build.bat
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
LockBit3Builder/builder.exe
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
LockBit3Builder/builder.exe
Resource
win10v2004-20220901-en
Behavioral task
behavioral5
Sample
LockBit3Builder/keygen.exe
Resource
win7-20220812-en
Behavioral task
behavioral6
Sample
LockBit3Builder/keygen.exe
Resource
win10v2004-20220812-en
General
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Target
LockBit3Builder/Build.bat
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Size
741B
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MD5
4e46e28b2e61643f6af70a8b19e5cb1f
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SHA1
804a1d0c4a280b18e778e4b97f85562fa6d5a4e6
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SHA256
8e83a1727696ced618289f79674b97305d88beeeabf46bd25fc77ac53c1ae339
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SHA512
009b17b515ff0ea612e54d8751eef07f1e2b54db07e6cd69a95e7adf775f3c79a0ea91bff2fe593f2314807fdc00c75d80f1807b7dbe90f0fcf94607e675047b
Malware Config
Signatures
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Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 944 wrote to memory of 2432 944 cmd.exe 80 PID 944 wrote to memory of 2432 944 cmd.exe 80 PID 944 wrote to memory of 2432 944 cmd.exe 80 PID 944 wrote to memory of 3104 944 cmd.exe 81 PID 944 wrote to memory of 3104 944 cmd.exe 81 PID 944 wrote to memory of 3104 944 cmd.exe 81 PID 944 wrote to memory of 312 944 cmd.exe 82 PID 944 wrote to memory of 312 944 cmd.exe 82 PID 944 wrote to memory of 312 944 cmd.exe 82 PID 944 wrote to memory of 1120 944 cmd.exe 83 PID 944 wrote to memory of 1120 944 cmd.exe 83 PID 944 wrote to memory of 1120 944 cmd.exe 83 PID 944 wrote to memory of 808 944 cmd.exe 84 PID 944 wrote to memory of 808 944 cmd.exe 84 PID 944 wrote to memory of 808 944 cmd.exe 84 PID 944 wrote to memory of 4872 944 cmd.exe 85 PID 944 wrote to memory of 4872 944 cmd.exe 85 PID 944 wrote to memory of 4872 944 cmd.exe 85 PID 944 wrote to memory of 4796 944 cmd.exe 86 PID 944 wrote to memory of 4796 944 cmd.exe 86 PID 944 wrote to memory of 4796 944 cmd.exe 86
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\keygen.exekeygen -path C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build -pubkey pub.key -privkey priv.key2⤵PID:2432
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C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\builder.exebuilder -type dec -privkey C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\priv.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\LB3Decryptor.exe2⤵PID:3104
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C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\builder.exebuilder -type enc -exe -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\LB3.exe2⤵PID:312
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C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\builder.exebuilder -type enc -exe -pass -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\LB3_pass.exe2⤵PID:1120
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C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\builder.exebuilder -type enc -dll -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\LB3_Rundll32.dll2⤵PID:808
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C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\builder.exebuilder -type enc -dll -pass -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\LB3_Rundll32_pass.dll2⤵PID:4872
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C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\builder.exebuilder -type enc -ref -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit3Builder\Build\LB3_ReflectiveDll_DllMain.dll2⤵PID:4796
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
344B
MD506fd3a245bc08eea753e9a6e711af053
SHA142ff545e7658a180fbb0122972c10d598294ea3f
SHA256ed8f4ee19d622c6373435215686c16af5eb2e701c3c07937c376ce53bbe8b70a
SHA51219b37634dddd1538785896cd6029a7663232fdbbea41cf0e1c0b68fafa02be2581f04d9367a89a030ca5eb0a0010339d490d7a533ad5c4931c55cf04342d1074
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Filesize
344B
MD5c23ca1eb4a5281c577821d96b30d4b92
SHA18f6b93371163f8f53559f778e7b983c88ef01c1b
SHA256b13543724b6cea33cf4b68488335521c7d8375fb11ed048a3857f66516324049
SHA512ec3e70975d22b49c98942f354097a489616ae3cf519f2d8cd74ba8593467970e877717d5e5fd974c84858f78b00cb9027714419eeae67dfc1168a8731b806ebe