Analysis Overview
SHA256
f01909eee3dec5474a5a845deea3f8fb5502ac006f65060a7e945f91c966e266
Threat Level: Known bad
The file 33c2a1189c2d5716f3e89f9ab0179675.bin was found to be: Known bad.
Malicious Activity Summary
Rule to detect Lockbit 3.0 ransomware Windows payload
Lockbit family
Renames multiple (584) files with added filename extension
Renames multiple (330) files with added filename extension
Reads user/profile data of web browsers
Deletes itself
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Drops desktop.ini file(s)
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: RenamesItself
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-21 02:01
Signatures
Lockbit family
Rule to detect Lockbit 3.0 ransomware Windows payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-21 02:01
Reported
2024-02-21 02:03
Platform
win7-20240220-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Renames multiple (330) files with added filename extension
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\$Recycle.Bin\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | N/A |
| File opened for modification | F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
| N/A | N/A | C:\ProgramData\21A4.tmp | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe
"C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe"
C:\ProgramData\21A4.tmp
"C:\ProgramData\21A4.tmp"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\21A4.tmp >> NUL
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x14c
Network
Files
memory/2924-0-0x0000000000DE0000-0x0000000000E20000-memory.dmp
C:\7fpKwvu5x.README.txt
| MD5 | 9a93bdac5989317ace2a796b8d273381 |
| SHA1 | 9e3200d5d2a79004d062bd88c06e7742ab1474ce |
| SHA256 | d5eb3f426eb64d366e9f17f1142b0289ae1550b19ddb9c5e5463472350aa2e4a |
| SHA512 | 4ccb42c9b7d60640ed083d096108856eaa88106a0b2af622b3e88cc85a9c57c4ca3e1f7579a42261b73e4045c811a28bb7412009e046ad267facfbc8312e2431 |
C:\$Recycle.Bin\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini
| MD5 | 93036b5f41d68246c7067613fd4a3ad7 |
| SHA1 | 65c94c0b9bc76d0ebbb4f0bbbb18b02072cab309 |
| SHA256 | 01610aee0e25177e757231fb0c2b31d1b440319d822f6ffe4475f2cf236bd8cf |
| SHA512 | 30a803f3ca9ef2708908ac9eb372cf35957d56217fdae84cd2629995f4ceb75d98c6a14d98b2217350fbe359485ca9b553eaf5a91ac142da8cd155de3a85a5f0 |
F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\DDDDDDDDDDD
| MD5 | 73e7af74de8ff6a902ed34152be76ae4 |
| SHA1 | 0d244ed7abefe89f7d35394100ae30547367f355 |
| SHA256 | 87bdd48bd60515daf134d696585b041a1c6099c916cd20bca4ece1f0817bcd0e |
| SHA512 | 4616979294a83c606cd6be45a4f388679fe3f48c26c26c70f18307b575d1b80fb392febc0076896835f0bfc065a179691d888a1da0f86e5790fd2914e8076c25 |
C:\ProgramData\21A4.tmp
| MD5 | 294e9f64cb1642dd89229fff0592856b |
| SHA1 | 97b148c27f3da29ba7b18d6aee8a0db9102f47c9 |
| SHA256 | 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2 |
| SHA512 | b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf |
memory/1412-853-0x000000007EFA0000-0x000000007EFA1000-memory.dmp
memory/1412-854-0x0000000002240000-0x0000000002280000-memory.dmp
memory/1412-860-0x000000007EF80000-0x000000007EF81000-memory.dmp
memory/1412-862-0x000000007EF20000-0x000000007EF21000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
| MD5 | c06fe06d04ffd2a50e6ca3eb05d5b7d4 |
| SHA1 | 2f16c6cbcc43a98937e8bab3c7d2a8559858f99d |
| SHA256 | 12a6f2f6c14a9c33b077ec5cba8db0cd022a4c787673cb0d42ba0e8fcdfea575 |
| SHA512 | 1a902ba68525fdd668d6d0145d5747a724bd37a2949cf4bcf1ea4b0c085ffbf3d2796959eb80df371e6a3bbe4453cd7f61ea2e69504f5d1960ff5277901b8d77 |
memory/1412-885-0x000000007EF40000-0x000000007EF41000-memory.dmp
memory/1412-886-0x000000007EF60000-0x000000007EF61000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-21 02:01
Reported
2024-02-21 02:03
Platform
win10v2004-20231215-en
Max time kernel
142s
Max time network
150s
Command Line
Signatures
Renames multiple (584) files with added filename extension
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation | C:\ProgramData\EB1B.tmp | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\$Recycle.Bin\S-1-5-21-983843758-932321429-1636175382-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | N/A |
| File opened for modification | F:\$RECYCLE.BIN\S-1-5-21-983843758-932321429-1636175382-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
| N/A | N/A | C:\ProgramData\EB1B.tmp | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 936 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | C:\ProgramData\EB1B.tmp |
| PID 936 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | C:\ProgramData\EB1B.tmp |
| PID 936 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | C:\ProgramData\EB1B.tmp |
| PID 936 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe | C:\ProgramData\EB1B.tmp |
| PID 4164 wrote to memory of 3124 | N/A | C:\ProgramData\EB1B.tmp | C:\Windows\SysWOW64\cmd.exe |
| PID 4164 wrote to memory of 3124 | N/A | C:\ProgramData\EB1B.tmp | C:\Windows\SysWOW64\cmd.exe |
| PID 4164 wrote to memory of 3124 | N/A | C:\ProgramData\EB1B.tmp | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe
"C:\Users\Admin\AppData\Local\Temp\33c2a1189c2d5716f3e89f9ab0179675.exe"
C:\ProgramData\EB1B.tmp
"C:\ProgramData\EB1B.tmp"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\EB1B.tmp >> NUL
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.117.168.52.in-addr.arpa | udp |
Files
memory/936-0-0x0000000002FE0000-0x0000000002FF0000-memory.dmp
memory/936-1-0x0000000002FE0000-0x0000000002FF0000-memory.dmp
memory/936-2-0x0000000002FE0000-0x0000000002FF0000-memory.dmp
C:\$Recycle.Bin\S-1-5-21-983843758-932321429-1636175382-1000\desktop.ini
| MD5 | 2b3383785a4ef1245ce991281a438e61 |
| SHA1 | 8ea88436e47e0374206aa6c288d188054b99fe9f |
| SHA256 | a2a1a6fed7a888df8279a7dffa5d142e779cf14d697169ad6d57daa9eaa2673c |
| SHA512 | 0c5eba30b60bcad2d622520d080db834b21266f9869dc23c4336acb008320b240ef60a82cc285fb7a6365b0def69ba21d4f5a6452d3538641905f5bf1c97be3a |
C:\7fpKwvu5x.README.txt
| MD5 | 85c38f851b1ebf97450897d2cee1bf1f |
| SHA1 | 007a09cd283bb17b6a45b1de3977c08b5f177b03 |
| SHA256 | 1300bd82b3b745791a623c1736e7e1213ae23d9994f4a624400dc516ad261bda |
| SHA512 | 91fa87894f7329c683e987536df6fea5c9314b6b0e149eb3c8db837258cbd3dc635ff286f15a02948bf685ba1ac720167d0b8547d739b4349142b766a13781f5 |
F:\$RECYCLE.BIN\S-1-5-21-983843758-932321429-1636175382-1000\CCCCCCCCCCC
| MD5 | 3cace86baac07f0c659f93db5ce68fa5 |
| SHA1 | b8132fe187fb92db024a250bff408c9f29619c36 |
| SHA256 | 5b5e44369fad56089c170a95e9335ed7f073c6461ceed3c87b6bf63cfb98e106 |
| SHA512 | 772874ad392d8cce7d71593fc98020f2fe1db5451028ee103e975d0503b3f342628e3a36013aeaba06efb093e4aad3f66b66ff87c7e4a3331054d12cc50fe8b5 |
memory/936-2720-0x0000000002FE0000-0x0000000002FF0000-memory.dmp
memory/936-2721-0x0000000002FE0000-0x0000000002FF0000-memory.dmp
memory/936-2722-0x0000000002FE0000-0x0000000002FF0000-memory.dmp
C:\ProgramData\EB1B.tmp
| MD5 | 294e9f64cb1642dd89229fff0592856b |
| SHA1 | 97b148c27f3da29ba7b18d6aee8a0db9102f47c9 |
| SHA256 | 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2 |
| SHA512 | b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf |
memory/4164-2727-0x000000007FE40000-0x000000007FE41000-memory.dmp
memory/4164-2728-0x0000000002430000-0x0000000002440000-memory.dmp
memory/4164-2729-0x0000000002430000-0x0000000002440000-memory.dmp
memory/4164-2730-0x000000007FE20000-0x000000007FE21000-memory.dmp
memory/4164-2731-0x000000007FDC0000-0x000000007FDC1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
| MD5 | 7eabd8cb3b55a65d31c4d856163d2755 |
| SHA1 | cc7be339482c9e37420dfc35cef440294731c754 |
| SHA256 | 73fd51365a07852a2d44c66875f9f830291300b9d6fdd47bd966d9b1ce125d6b |
| SHA512 | 7cda2dae46aa139f315a1fc525b5133c81568ec4a6f031455981f61868cfef3bcf770f63cfd9ff825956478cfb7d3b49f81c870b9656e3e9d58b5bf54217feea |
memory/4164-2760-0x000000007FDE0000-0x000000007FDE1000-memory.dmp
memory/4164-2761-0x000000007FE00000-0x000000007FE01000-memory.dmp