Analysis Overview
SHA256
1d6561c4714fadf16bcfb244a5444a959a953424d8e2c6acca6ccb2e20117e74
Threat Level: Known bad
The file LockBit30.7z was found to be: Known bad.
Malicious Activity Summary
Blackmatter family
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-09-21 11:21
Signatures
Blackmatter family
Analysis: behavioral6
Detonation Overview
Submitted
2022-09-21 11:16
Reported
2022-09-21 11:27
Platform
win10v2004-20220812-en
Max time kernel
91s
Max time network
126s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\keygen.exe
"C:\Users\Admin\AppData\Local\Temp\keygen.exe"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| NL | 95.101.78.82:80 | tcp | |
| NL | 104.80.225.205:443 | tcp | |
| US | 93.184.221.240:80 | tcp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2022-09-21 11:16
Reported
2022-09-21 11:27
Platform
win7-20220812-en
Max time kernel
43s
Max time network
46s
Command Line
Signatures
Suspicious behavior: CmdExeWriteProcessMemorySpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\keygen.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\builder.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\builder.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\builder.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\builder.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\builder.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\builder.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Build.bat"
C:\Users\Admin\AppData\Local\Temp\keygen.exe
keygen -path C:\Users\Admin\AppData\Local\Temp\Build -pubkey pub.key -privkey priv.key
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type dec -privkey C:\Users\Admin\AppData\Local\Temp\Build\priv.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3Decryptor.exe
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -exe -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3.exe
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -exe -pass -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_pass.exe
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -dll -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32.dll
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -dll -pass -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32_pass.dll
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -ref -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_ReflectiveDll_DllMain.dll
Network
Files
memory/1880-54-0x0000000000000000-mapping.dmp
memory/1880-55-0x0000000076201000-0x0000000076203000-memory.dmp
memory/888-56-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Build\priv.key
| MD5 | 9c6713d91fce8d362e153920cb54d680 |
| SHA1 | 391688f633caa3415f44f8e85e7e8e8a1d4ee546 |
| SHA256 | 78da53378038810e74479ec7c585fa264e28374a05ce15d8c4afa03dff8b9ab2 |
| SHA512 | 1b020f84b7ebaa3154852cbb4a76b356a2a17c1086988ee768bc111f40dc9cc8fe44f38afbd3bdb8cdaf84c5000b477053d16ea247ec050c64f9552e24fc26b9 |
memory/980-59-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Build\pub.key
| MD5 | d3a3eb387902df4e720d0cb32df4f578 |
| SHA1 | 4c8221097027d7c97e4a9779f71db381fad01e7f |
| SHA256 | c571075e86d3c04f89e96847fac20e8867e3a6ff7a6d03d424f6cb9941fc4afd |
| SHA512 | e92ddc8a1b2ca30f71a9885cb32755525ab7d1a607c4c3e0a20975c106b8bd91a28d24876315f229aba4cd1f5ae86c8cdc549a719c0c0d6396d0794e1d3c5af0 |
memory/1752-62-0x0000000000000000-mapping.dmp
memory/2040-64-0x0000000000000000-mapping.dmp
memory/1484-66-0x0000000000000000-mapping.dmp
memory/1992-68-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-09-21 11:16
Reported
2022-09-21 11:27
Platform
win10v2004-20220812-en
Max time kernel
90s
Max time network
144s
Command Line
Signatures
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Build.bat"
C:\Users\Admin\AppData\Local\Temp\keygen.exe
keygen -path C:\Users\Admin\AppData\Local\Temp\Build -pubkey pub.key -privkey priv.key
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type dec -privkey C:\Users\Admin\AppData\Local\Temp\Build\priv.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3Decryptor.exe
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -exe -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3.exe
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -exe -pass -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_pass.exe
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -dll -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32.dll
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -dll -pass -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32_pass.dll
C:\Users\Admin\AppData\Local\Temp\builder.exe
builder -type enc -ref -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_ReflectiveDll_DllMain.dll
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| FR | 40.79.150.121:443 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp |
Files
memory/5024-132-0x0000000000000000-mapping.dmp
memory/1464-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Build\priv.key
| MD5 | c60341671847a470bd295ffdff9222b1 |
| SHA1 | feb9a285b8f95a636a50588855f21fdd29a31c96 |
| SHA256 | abb21d951095eba69c4a1c1fd2603cdfcafd03741943830c7f3899826c8043e0 |
| SHA512 | c34442b4fc5aa7c75ef5bad7316c8ec94a7949fb5b187c425c9c78e795d58f40e925076282b79e9d0019ba00e1c0f5ddd721b2b3d824a8fefc98190cc5600723 |
memory/4108-135-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Build\pub.key
| MD5 | ada2f85195a0b22df2e6f69bda9ed7be |
| SHA1 | 3783cd707a7b8d735e5c79dac663bc5695dca005 |
| SHA256 | 6998e6d1ab5f6eb71b2bd7c98a0b6a587e172931b03f945883902de185f06584 |
| SHA512 | ad3da7aed952486080ac401bde33b48f8a81352b68207d4355ee9fed72a62410e24f24c9c115107c22f3223256e2da4eb33cbda01c0f7ca7c2b04cf85e67bc14 |
memory/4504-137-0x0000000000000000-mapping.dmp
memory/4800-138-0x0000000000000000-mapping.dmp
memory/3388-139-0x0000000000000000-mapping.dmp
memory/1560-140-0x0000000000000000-mapping.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2022-09-21 11:16
Reported
2022-09-21 11:27
Platform
win7-20220812-en
Max time kernel
42s
Max time network
45s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\builder.exe
"C:\Users\Admin\AppData\Local\Temp\builder.exe"
Network
Files
memory/1280-54-0x0000000075811000-0x0000000075813000-memory.dmp
Analysis: behavioral4
Detonation Overview
Submitted
2022-09-21 11:16
Reported
2022-09-21 11:27
Platform
win10v2004-20220812-en
Max time kernel
114s
Max time network
133s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\builder.exe
"C:\Users\Admin\AppData\Local\Temp\builder.exe"
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| NL | 104.80.225.205:443 | tcp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2022-09-21 11:16
Reported
2022-09-21 11:27
Platform
win7-20220901-en
Max time kernel
45s
Max time network
49s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\keygen.exe
"C:\Users\Admin\AppData\Local\Temp\keygen.exe"
Network
Files
memory/1492-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp