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Analysis
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max time kernel
61s -
max time network
129s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
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submitted
01/04/2023, 12:37
General
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Target
BLTools-v2.2.exe
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Size
4.5MB
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MD5
ef5ee302110f10993a991fd9a2350594
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SHA1
a3f020240217e95c952a4f17cfe101193db1f478
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SHA256
f368811f3bb071d6ee006731fe819a0b7d8cd7ed5fd8110aeb5cb0da22a3a3a7
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SHA512
5d5ade7075ba155046381bf1976de2e05bb355f897075930571f09c398ca9fbd28b499ce82cb13dd3139a9490c4f52237a4eba7e36b6b8fb536ce96af156fdc6
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SSDEEP
98304:W3AsFVBrtaVHd+A1NTzIHG/4EfZRo6gW0bW+egt8qXLbkse219FdVVN3kzes:1wG9+A1NTzOPKZRo6gWG9egCqXLbN5hO
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 2 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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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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Program crash 1 IoCs
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 3 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\BLTools-v2.2.exe"C:\Users\Admin\AppData\Local\Temp\BLTools-v2.2.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Checks computer location settings
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\BLTools v2.2.exe"C:\Users\Admin\AppData\Local\Temp\BLTools v2.2.exe"3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 10764⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\BLTools-v2.2.exe"C:\Users\Admin\AppData\Local\Temp\BLTools-v2.2.exe"2⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\ProgramData\microsoft\MaintenanceUI.exe"C:\ProgramData\microsoft\MaintenanceUI.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\backgroundTaskHost.exeC:\Windows\System32\backgroundTaskHost.exe4⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2808 -ip 28081⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
667KB
MD53d90f7387ce502377b51bc44cbccc932
SHA1a74481e159fd4be833f384b0143a0ae256d1d1ce
SHA2569e38265974dd42580fb252ae669b89688a8dc0016c6bdecae1786face9a75eea
SHA512ee2677992a01350375362048f60f37e51ea7752972452d945d1f2a85d6189230140e50579862f89b195da73156532eabe581028625a14518066a93a810742742
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Filesize
667KB
MD53d90f7387ce502377b51bc44cbccc932
SHA1a74481e159fd4be833f384b0143a0ae256d1d1ce
SHA2569e38265974dd42580fb252ae669b89688a8dc0016c6bdecae1786face9a75eea
SHA512ee2677992a01350375362048f60f37e51ea7752972452d945d1f2a85d6189230140e50579862f89b195da73156532eabe581028625a14518066a93a810742742
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Filesize
667KB
MD53d90f7387ce502377b51bc44cbccc932
SHA1a74481e159fd4be833f384b0143a0ae256d1d1ce
SHA2569e38265974dd42580fb252ae669b89688a8dc0016c6bdecae1786face9a75eea
SHA512ee2677992a01350375362048f60f37e51ea7752972452d945d1f2a85d6189230140e50579862f89b195da73156532eabe581028625a14518066a93a810742742
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Filesize
859B
MD56e11a15fe4491ead2a94f64d3467be38
SHA19a8329fb71ddc89dae9aa174c0b44a1f646efd63
SHA256087cf6355ae9fc71eea2493b30c6b10a6775f3dd68b2cb5e07fcc13461b74248
SHA5126154e320e2556aef177fc5bfb4e5fe8fabe324af736b89db4db41e6dd51658f7f6a7d0f73c24dc6ccdc4edf14023f4a1ecd0908abac5b82cebd038a93b2fc106
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Filesize
4.6MB
MD531b01cdaebe52fe31f74cd083a18fb88
SHA12501d0927aafe0e33c3750501f45a2984f6b2fdb
SHA256120b0dc2fec8495fd608890cee10cf68e8ce2b97561bb044c2ce28990f017716
SHA512ca8b94efa40c10b059cf885d61e57812eaa21228e744f33891c87db9790d2a1fe034d797a9faa6124a03911865366c9ebb273c0681f6d2329567971598e4b529
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Filesize
4.6MB
MD531b01cdaebe52fe31f74cd083a18fb88
SHA12501d0927aafe0e33c3750501f45a2984f6b2fdb
SHA256120b0dc2fec8495fd608890cee10cf68e8ce2b97561bb044c2ce28990f017716
SHA512ca8b94efa40c10b059cf885d61e57812eaa21228e744f33891c87db9790d2a1fe034d797a9faa6124a03911865366c9ebb273c0681f6d2329567971598e4b529
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Filesize
4.6MB
MD531b01cdaebe52fe31f74cd083a18fb88
SHA12501d0927aafe0e33c3750501f45a2984f6b2fdb
SHA256120b0dc2fec8495fd608890cee10cf68e8ce2b97561bb044c2ce28990f017716
SHA512ca8b94efa40c10b059cf885d61e57812eaa21228e744f33891c87db9790d2a1fe034d797a9faa6124a03911865366c9ebb273c0681f6d2329567971598e4b529
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
64KB
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Filesize
4.5MB
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Filesize
104KB
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Filesize
92KB
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Filesize
64KB
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Filesize
4.6MB
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Filesize
3.8MB
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Filesize
64KB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
136KB
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Filesize
5.2MB
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Filesize
64KB
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Filesize
64KB
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Filesize
14.2MB
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Filesize
64KB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
14.2MB
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Filesize
7.6MB
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Filesize
14.2MB
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Filesize
3.8MB
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Filesize
64KB
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Filesize
14.2MB
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Filesize
64KB
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Filesize
14.2MB
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Filesize
64KB
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Filesize
1.9MB
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Filesize
1.9MB