Analysis Overview
SHA256
e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf
Threat Level: Known bad
The file e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf was found to be: Known bad.
Malicious Activity Summary
Guloader family
Remcos family
Remcos
Guloader,Cloudeye
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
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-05 13:33
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-05 13:33
Reported
2024-11-05 13:36
Platform
win7-20240903-en
Max time kernel
120s
Max time network
121s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\kvindagtigt.ini | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe |
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\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1860 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1860 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1860 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1860 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe
"C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 524
Network
Files
C:\Program Files (x86)\Common Files\kvindagtigt.ini
| MD5 | f298228d2d42ced0a00b0c5320000835 |
| SHA1 | fb06f02ddcda4c9ec752a688ee617064db3a49eb |
| SHA256 | e399afe89f97eae7bcdae626913da1618f4f42ba11887217cdbf524720532ab2 |
| SHA512 | 464da89f9e1d5935810443b20c3d19f77585d964df89f5cb427482a03c8ef6274d06cbc01533d92c691ffd55e1725ba5f427d023a45a5128bced0eee11e083fe |
\Users\Admin\AppData\Local\Temp\nsy5C25.tmp\System.dll
| MD5 | 6e55a6e7c3fdbd244042eb15cb1ec739 |
| SHA1 | 070ea80e2192abc42f358d47b276990b5fa285a9 |
| SHA256 | acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506 |
| SHA512 | 2d504b74da38edc967e3859733a2a9cacd885db82f0ca69bfb66872e882707314c54238344d45945dc98bae85772aceef71a741787922d640627d3c8ae8f1c35 |
memory/1860-296-0x0000000003B90000-0x00000000055EF000-memory.dmp
memory/1860-297-0x0000000003B90000-0x00000000055EF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-05 13:33
Reported
2024-11-05 13:36
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1088 set thread context of 2960 | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\kvindagtigt.ini | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.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\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe
"C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe"
C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe
"C:\Users\Admin\AppData\Local\Temp\e38bdd8374c7e1640e8fe34c531228dd9389affb9659cb7c49c00129baa73bdf.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 212.162.149.38:80 | 212.162.149.38 | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 38.149.162.212.in-addr.arpa | udp |
| US | 162.251.122.106:2404 | tcp | |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| US | 162.251.122.106:2404 | tcp | |
| US | 8.8.8.8:53 | 106.122.251.162.in-addr.arpa | 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 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
C:\Program Files (x86)\Common Files\kvindagtigt.ini
| MD5 | f298228d2d42ced0a00b0c5320000835 |
| SHA1 | fb06f02ddcda4c9ec752a688ee617064db3a49eb |
| SHA256 | e399afe89f97eae7bcdae626913da1618f4f42ba11887217cdbf524720532ab2 |
| SHA512 | 464da89f9e1d5935810443b20c3d19f77585d964df89f5cb427482a03c8ef6274d06cbc01533d92c691ffd55e1725ba5f427d023a45a5128bced0eee11e083fe |
C:\Users\Admin\AppData\Local\Temp\nspB816.tmp\System.dll
| MD5 | 6e55a6e7c3fdbd244042eb15cb1ec739 |
| SHA1 | 070ea80e2192abc42f358d47b276990b5fa285a9 |
| SHA256 | acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506 |
| SHA512 | 2d504b74da38edc967e3859733a2a9cacd885db82f0ca69bfb66872e882707314c54238344d45945dc98bae85772aceef71a741787922d640627d3c8ae8f1c35 |
memory/1088-294-0x0000000004700000-0x000000000615F000-memory.dmp
memory/1088-295-0x0000000077241000-0x0000000077361000-memory.dmp
memory/1088-296-0x0000000073E95000-0x0000000073E96000-memory.dmp
memory/1088-297-0x0000000004700000-0x000000000615F000-memory.dmp
memory/2960-298-0x0000000001AA0000-0x00000000034FF000-memory.dmp
memory/2960-299-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-300-0x0000000001AA0000-0x00000000034FF000-memory.dmp
memory/2960-301-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-305-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-309-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-312-0x0000000000840000-0x0000000001A94000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 1bf491f46a891234950a4ce22ca78ee1 |
| SHA1 | fee0ce89e6bc8e48255c9106a1e09335775ab73d |
| SHA256 | 16a0a37e381e2d98038f0372d6f0adf0778a5620085e85a4aa44d8c88a064b16 |
| SHA512 | 7698d12bf579cbe8e73402079d64c49e25ed346d6f5487f484297f15c66baaa39f61fbffd60f367cc14cae0a0c79bccd4c72e46b02b5db02529775cc24344bb4 |
memory/2960-315-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-318-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-321-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-324-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-327-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-330-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-333-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-336-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-339-0x0000000000840000-0x0000000001A94000-memory.dmp
memory/2960-342-0x0000000000840000-0x0000000001A94000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-05 13:33
Reported
2024-11-05 13:36
Platform
win7-20241010-en
Max time kernel
121s
Max time network
123s
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 2516 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-05 13:33
Reported
2024-11-05 13:36
Platform
win10v2004-20241007-en
Max time kernel
138s
Max time network
145s
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 3420 wrote to memory of 4800 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3420 wrote to memory of 4800 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3420 wrote to memory of 4800 | 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 408 -p 4800 -ip 4800
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.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 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |