Analysis Overview
SHA256
bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706
Threat Level: Known bad
The file bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Executes dropped EXE
UPX packed file
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-19 15:03
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-19 15:03
Reported
2022-10-19 16:41
Platform
win7-20220812-en
Max time kernel
152s
Max time network
167s
Command Line
Signatures
Darkcomet
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Loads dropped DLL
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\reg.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\TapNet = "C:\\Users\\Admin\\AppData\\Roaming\\tapinterface\\tap.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1008 set thread context of 1600 | N/A | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe |
| PID 560 set thread context of 1536 | N/A | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe |
| PID 560 set thread context of 1348 | N/A | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe | C:\Windows\SysWOW64\svchost.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
"C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe"
C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
"C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\GMRCA.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "TapNet" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe" /f
C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
"C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe"
C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
"C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe"
C:\Windows\SysWOW64\svchost.exe
"C:\Windows\system32\svchost.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 212.7.192.244:1337 | tcp | |
| NL | 212.7.192.244:1337 | tcp | |
| NL | 212.7.192.244:1337 | tcp | |
| NL | 212.7.192.244:1337 | tcp | |
| NL | 212.7.192.244:1337 | tcp |
Files
memory/1008-56-0x00000000005EF000-0x000000000062D000-memory.dmp
\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
| MD5 | 83003c24123609acdec44b1263f6d66d |
| SHA1 | 7154c1219a0b151051d930c6cc2063a170425d18 |
| SHA256 | bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706 |
| SHA512 | 7f562d8bde844bc153e1743487c7594c520a2e44b3d732472a140af534c2b68dea4f18144c893196267ff81d22f13c4e6abc7112a27540324ede6ff61054f535 |
memory/1600-59-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-60-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-62-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-63-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-64-0x00000000004085D0-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
| MD5 | 83003c24123609acdec44b1263f6d66d |
| SHA1 | 7154c1219a0b151051d930c6cc2063a170425d18 |
| SHA256 | bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706 |
| SHA512 | 7f562d8bde844bc153e1743487c7594c520a2e44b3d732472a140af534c2b68dea4f18144c893196267ff81d22f13c4e6abc7112a27540324ede6ff61054f535 |
memory/1600-67-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-68-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-71-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1600-72-0x0000000075C51000-0x0000000075C53000-memory.dmp
memory/1600-73-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1324-74-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\GMRCA.bat
| MD5 | 517aa80e282d1f1a3ea764d1a5f32ed8 |
| SHA1 | 990331d6b551d436d81f5aac0914b7ed7fa51136 |
| SHA256 | fc1c4d0d8ea5d27476e23c49b7dacd40cd9dac4763303ad838774984a2bdc81d |
| SHA512 | caf370281540e19a15ac5a44204788525fb181f714bf396af2fc3f717e80c132e55e0a0db82e230c8469c29c3ab49f3a697dbb85141201405334b5420540abc7 |
memory/1456-76-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
memory/560-82-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
memory/560-86-0x000000000061F000-0x000000000065D000-memory.dmp
C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
memory/1536-94-0x00000000004085D0-mapping.dmp
C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
| MD5 | c11f85a2b0977f5d0cb82b54a931bdb0 |
| SHA1 | 0f17cebed26a4ab0c590aab40f87c6e60468eafd |
| SHA256 | ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493 |
| SHA512 | 8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057 |
memory/1536-101-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1348-103-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-104-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-106-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-107-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-108-0x00000000004B8720-mapping.dmp
memory/1600-110-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1348-109-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-112-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-113-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1348-114-0x0000000000400000-0x00000000004BB000-memory.dmp
memory/1536-115-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1348-116-0x0000000000400000-0x00000000004BB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-19 15:03
Reported
2022-10-19 16:42
Platform
win10v2004-20220812-en
Max time kernel
176s
Max time network
198s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
"C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4676 -ip 4676
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4676 -s 464
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| NL | 95.101.78.106:80 | tcp | |
| US | 20.44.10.122:443 | tcp | |
| US | 72.21.81.240:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp |