Analysis Overview
SHA256
a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6
Threat Level: Known bad
The file a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6 was found to be: Known bad.
Malicious Activity Summary
SystemBC
Executes dropped EXE
Drops file in System32 directory
Drops file in Windows directory
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-11-08 17:54
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-08 17:53
Reported
2022-11-09 23:02
Platform
win7-20220812-en
Max time kernel
157s
Max time network
46s
Command Line
Signatures
SystemBC
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\qgvtkr\nuiwtb.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\CatRoot2\dberr.txt | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Tasks\nuiwtb.job | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
| File created | C:\Windows\Tasks\nuiwtb.job | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1104 wrote to memory of 1704 | N/A | C:\Windows\system32\taskeng.exe | C:\ProgramData\qgvtkr\nuiwtb.exe |
| PID 1104 wrote to memory of 1704 | N/A | C:\Windows\system32\taskeng.exe | C:\ProgramData\qgvtkr\nuiwtb.exe |
| PID 1104 wrote to memory of 1704 | N/A | C:\Windows\system32\taskeng.exe | C:\ProgramData\qgvtkr\nuiwtb.exe |
| PID 1104 wrote to memory of 1704 | N/A | C:\Windows\system32\taskeng.exe | C:\ProgramData\qgvtkr\nuiwtb.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe
"C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {88809D1D-C630-4D2A-A40F-2A0909C1EEBE} S-1-5-21-3845472200-3839195424-595303356-1000:ZERMMMDR\Admin:Interactive:[1]
C:\ProgramData\qgvtkr\nuiwtb.exe
C:\ProgramData\qgvtkr\nuiwtb.exe start2
Network
Files
memory/972-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp
memory/972-55-0x0000000000400000-0x0000000000664000-memory.dmp
memory/972-56-0x0000000000330000-0x0000000000348000-memory.dmp
memory/972-57-0x0000000000400000-0x0000000000664000-memory.dmp
memory/972-58-0x0000000000330000-0x0000000000348000-memory.dmp
C:\ProgramData\qgvtkr\nuiwtb.exe
| MD5 | 8cea9bc30046ce76a8d9d211206b9197 |
| SHA1 | 408b79f4b244be9e288efe7185dc915aaf4a9cbc |
| SHA256 | a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6 |
| SHA512 | 95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae |
C:\ProgramData\qgvtkr\nuiwtb.exe
| MD5 | 8cea9bc30046ce76a8d9d211206b9197 |
| SHA1 | 408b79f4b244be9e288efe7185dc915aaf4a9cbc |
| SHA256 | a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6 |
| SHA512 | 95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae |
memory/1704-60-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-11-08 17:53
Reported
2022-11-09 23:04
Platform
win10v2004-20220812-en
Max time kernel
232s
Max time network
240s
Command Line
Signatures
SystemBC
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\rilkusr\obkgcil.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Tasks\obkgcil.job | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
| File opened for modification | C:\Windows\Tasks\obkgcil.job | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe
"C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe"
C:\ProgramData\rilkusr\obkgcil.exe
C:\ProgramData\rilkusr\obkgcil.exe start2
Network
| Country | Destination | Domain | Proto |
| US | 20.189.173.13:443 | tcp | |
| NL | 95.101.78.82:80 | tcp | |
| NL | 95.101.78.82:80 | tcp | |
| NL | 104.80.225.205:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 96.108.152.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/4488-133-0x0000000000400000-0x0000000000664000-memory.dmp
memory/4488-134-0x0000000002430000-0x0000000002448000-memory.dmp
memory/4488-135-0x0000000000400000-0x0000000000664000-memory.dmp
C:\ProgramData\rilkusr\obkgcil.exe
| MD5 | 8cea9bc30046ce76a8d9d211206b9197 |
| SHA1 | 408b79f4b244be9e288efe7185dc915aaf4a9cbc |
| SHA256 | a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6 |
| SHA512 | 95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae |
memory/388-138-0x0000000000400000-0x0000000000664000-memory.dmp
C:\ProgramData\rilkusr\obkgcil.exe
| MD5 | 8cea9bc30046ce76a8d9d211206b9197 |
| SHA1 | 408b79f4b244be9e288efe7185dc915aaf4a9cbc |
| SHA256 | a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6 |
| SHA512 | 95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae |
memory/388-139-0x0000000000950000-0x0000000000968000-memory.dmp
memory/388-140-0x0000000000400000-0x0000000000664000-memory.dmp
memory/388-141-0x0000000000950000-0x0000000000968000-memory.dmp