Analysis Overview
SHA256
2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc
Threat Level: Known bad
The file 2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Loads dropped DLL
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
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
2024-08-09 01:07
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-09 01:07
Reported
2024-08-09 01:10
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
149s
Command Line
Signatures
Remcos
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2712 set thread context of 3344 | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.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\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
| File opened for modification | C:\Program Files (x86)\vocabulary.Med | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.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\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe
"C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe"
C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe
"C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.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 | 198.231.66.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.242.92.91.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 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\rijksdaalder.lnk
| MD5 | 11dfb912ca362087f6e82650a03676e4 |
| SHA1 | 986e49d3fac26807b3750b0776be30c5e23a6d63 |
| SHA256 | 623ba3bf245871fb4ff9dc046d2bdd481e47c8326ca865cfe386202f1778b0ae |
| SHA512 | 252f20152ce9b2570f1e9094655ac870215d0feaa3c5c5dadc6239be7c1ce3ea912763ad0ec2791aabe3d457159531f8d388aeeaf6042671c438d7be00f8bbb5 |
C:\Users\Admin\AppData\Local\Temp\nsb954C.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/2712-674-0x0000000077471000-0x0000000077591000-memory.dmp
memory/2712-675-0x00000000740C5000-0x00000000740C6000-memory.dmp
memory/3344-676-0x00000000774F8000-0x00000000774F9000-memory.dmp
memory/3344-677-0x0000000077515000-0x0000000077516000-memory.dmp
memory/3344-678-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-682-0x0000000077471000-0x0000000077591000-memory.dmp
memory/3344-684-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-685-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-686-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-687-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-688-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-689-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-690-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-691-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-692-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/3344-694-0x00000000004A0000-0x00000000016F4000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-08-09 01:07
Reported
2024-08-09 01:10
Platform
win7-20240704-en
Max time kernel
117s
Max time network
118s
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 1736 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-08-09 01:07
Reported
2024-08-09 01:10
Platform
win10v2004-20240802-en
Max time kernel
92s
Max time network
94s
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 2452 wrote to memory of 1468 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2452 wrote to memory of 1468 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2452 wrote to memory of 1468 | 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 368 -p 1468 -ip 1468
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-09 01:07
Reported
2024-08-09 01:10
Platform
win7-20240704-en
Max time kernel
148s
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\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2540 set thread context of 1532 | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.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\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
| File opened for modification | C:\Program Files (x86)\vocabulary.Med | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.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\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe
"C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe"
C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.exe
"C:\Users\Admin\AppData\Local\Temp\2bda6048a888003443cd18df65f75441974ea3dfa04d524c957b0d7c268654dc.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 | a7c3f3129ec197e99b1c10227819dfa1 |
| SHA1 | 69dc370024543d1a0a226a0432588d122c140c86 |
| SHA256 | 00e11ac975ff84f6ae020cb287bdd1fa7536f851b1dcd4f2cb5c6ccabab5dac3 |
| SHA512 | 899eb32178652e8d795c7a5768f556facdcacb727a896b287fbe07f899ec8bc378d4e6201e2e56725ab6261e137dc70498fba47b9c64b130f7f1d6a29e7e9d52 |
\Users\Admin\AppData\Local\Temp\nsd9BA4.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/2540-676-0x0000000077C30000-0x0000000077DD9000-memory.dmp
memory/2540-675-0x0000000077C31000-0x0000000077D32000-memory.dmp
memory/1532-677-0x0000000077C30000-0x0000000077DD9000-memory.dmp
memory/1532-678-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-679-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-684-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-685-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-686-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-687-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-688-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-689-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-690-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-691-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-692-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-693-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-694-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/1532-695-0x00000000004A0000-0x0000000001502000-memory.dmp