Analysis Overview
SHA256
07e5c45941435c5eb12765ad184ee2312abe4b6338e6564781f9b2d309930982
Threat Level: Known bad
The file 07082024_1403_07082024_SWIFT_YOR406100432.gz was found to be: Known bad.
Malicious Activity Summary
Remcos
Loads dropped DLL
Suspicious use of SetThreadContext
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops file in Program Files directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Program crash
Unsigned PE
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-07 14:03
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-07 14:03
Reported
2024-08-07 14:05
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Remcos
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 452 set thread context of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\niveaukurven.ini | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
| File opened for modification | C:\Program Files (x86)\vocabulary.Med | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 452 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 452 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 452 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 452 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 452 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe"
C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| NL | 91.92.242.99:80 | 91.92.242.99 | tcp |
| NL | 45.66.231.198:2404 | tcp | |
| US | 8.8.8.8:53 | 99.242.92.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.231.66.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 40.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\rijksdaalder.lnk
| MD5 | 0447ecf518731377c6c93849fc1c9fca |
| SHA1 | 211f007f65d12a0315b1931d4b9f879b95aaad6f |
| SHA256 | ec162a101a3150046f3ac5a839b72dbf07a663db81d855945357efff5eadfd3f |
| SHA512 | 1490a8dd01ab9a1c842908211c54d05fa13ef40d638005e56cf402eda4f79e1c78bc4343b8887d27ffd6060d552c2a937f3640fb4b81dab6c8d261ca1083a83d |
C:\Users\Admin\AppData\Local\Temp\nsmA3C3.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/452-674-0x0000000077031000-0x0000000077151000-memory.dmp
memory/452-675-0x0000000073C85000-0x0000000073C86000-memory.dmp
memory/3800-676-0x00000000770B8000-0x00000000770B9000-memory.dmp
memory/3800-677-0x00000000770D5000-0x00000000770D6000-memory.dmp
memory/3800-678-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-682-0x0000000077031000-0x0000000077151000-memory.dmp
memory/3800-684-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-685-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-686-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-689-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-690-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-691-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-695-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3800-696-0x00000000004A0000-0x00000000016F4000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-08-07 14:03
Reported
2024-08-07 14:05
Platform
win7-20240708-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-08-07 14:03
Reported
2024-08-07 14:05
Platform
win10v2004-20240802-en
Max time kernel
0s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 932 wrote to memory of 4232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 932 wrote to memory of 4232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 932 wrote to memory of 4232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4232 -ip 4232
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 612
Network
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-07 14:03
Reported
2024-08-07 14:05
Platform
win7-20240704-en
Max time kernel
147s
Max time network
150s
Command Line
Signatures
Remcos
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1996 set thread context of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\niveaukurven.ini | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
| File opened for modification | C:\Program Files (x86)\vocabulary.Med | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1996 wrote to memory of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 1996 wrote to memory of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 1996 wrote to memory of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 1996 wrote to memory of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 1996 wrote to memory of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
| PID 1996 wrote to memory of 2248 | N/A | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe | C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe"
C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT_YOR406100432.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 91.92.242.99:80 | 91.92.242.99 | tcp |
| NL | 45.66.231.198:2404 | tcp | |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
Files
C:\Users\Admin\AppData\Local\rijksdaalder.lnk
| MD5 | 3231629bdc0b04d79a8e62691f86bbcf |
| SHA1 | af0feec75451df00252bd2969c7fdf8a891ebf91 |
| SHA256 | d2669fa56e04e2cc4243b00aa2523183e601cf8a3a5ddc5a413ef5b46c5a9679 |
| SHA512 | c95e1c384e058e38ed86f802afcf0c0a880dda2316550ab8646a5f79bf3cd4a5a3ce8f4d4a04ed48954d8347709d9b8fd955fcfad0cf831387e2ee13cdbe2c0b |
\Users\Admin\AppData\Local\Temp\nsp204E.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/1996-675-0x0000000077771000-0x0000000077872000-memory.dmp
memory/1996-676-0x0000000077770000-0x0000000077919000-memory.dmp
memory/2248-677-0x0000000077770000-0x0000000077919000-memory.dmp
memory/2248-679-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/2248-683-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/2248-684-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/2248-685-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/2248-686-0x00000000004A0000-0x0000000001502000-memory.dmp