Analysis Overview
SHA256
722ce7e293a33d260dfc3199661351ceafb717590164b977fbebda4211ddd642
Threat Level: Known bad
The file 5ba5df576761e1f838e4460e16f16a56_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Remcos
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Modifies registry class
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-19 10:58
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-19 10:58
Reported
2024-07-19 11:01
Platform
win7-20240704-en
Max time kernel
150s
Max time network
154s
Command Line
Signatures
Remcos
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1952 set thread context of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe |
| PID 1724 set thread context of 3036 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rtzecNlXv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp900F.tmp"
C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rtzecNlXv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A84.tmp"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | favour2021.ddns.net | udp |
| US | 216.218.135.118:1990 | favour2021.ddns.net | tcp |
| US | 216.218.135.118:1990 | favour2021.ddns.net | tcp |
| US | 216.218.135.118:1990 | favour2021.ddns.net | tcp |
Files
memory/1952-0-0x000000007425E000-0x000000007425F000-memory.dmp
memory/1952-1-0x0000000000020000-0x00000000000D6000-memory.dmp
memory/1952-2-0x0000000074250000-0x000000007493E000-memory.dmp
memory/1952-3-0x0000000000570000-0x000000000057A000-memory.dmp
memory/1952-4-0x000000007425E000-0x000000007425F000-memory.dmp
memory/1952-5-0x0000000074250000-0x000000007493E000-memory.dmp
memory/1952-6-0x0000000004E10000-0x0000000004E6C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp900F.tmp
| MD5 | b2896c8bf24e347c1d1f4c11e5c98ce2 |
| SHA1 | 05da8c74754d886396e2c0b51c7b1bebb76dedab |
| SHA256 | be0c0c4b9b22f04607347cb0abfd70aa3335b28ef722051561c5597aa2b0fffe |
| SHA512 | afe46dd8bf288c17c7e4b934c5ef694011598ff099499974794e3a41d9cff1706eb6e7d34c83df21a803c657ed76ac3a1583a64a3bb5a86d7371de66b8523976 |
memory/2680-12-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-20-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2680-15-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-17-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-16-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-13-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-14-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-22-0x0000000000400000-0x0000000000421000-memory.dmp
memory/2680-25-0x0000000000400000-0x0000000000421000-memory.dmp
memory/1952-26-0x0000000074250000-0x000000007493E000-memory.dmp
memory/2680-29-0x0000000000400000-0x0000000000421000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\install.vbs
| MD5 | b92d64fe5b1d1f59df4b738262aea8df |
| SHA1 | c8fb1981759c2d9bb2ec91b705985fba5fc7af63 |
| SHA256 | fa20e9aab03dc8e9f1910aaf0cf42662379fa16ae3a22642084fb97fa3d4f83a |
| SHA512 | 2566248b93c0cfb0414f033b8dd18bbd4f88180093eac2861107289bcb4ee160f9593706ff1f7d1f2e4ecea430d67a5a2897551a4f9ebd82b707243e300520e2 |
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
| MD5 | 8dbeaa2200e3dd4d09247606d25bec31 |
| SHA1 | 72265ac4686a37571cdd1f7a6961853de166dc00 |
| SHA256 | e45bc4ce4e4f84bedc7ec144517df1d16ea97b1803fa1b3cf21c581390b50bf8 |
| SHA512 | c73fbe6c7300ccb33e6b293ab6218d605e52e20651a3bf22f2c51b2326fe63bd7b4b0978dbd190d714c3d889eb2d9256c62722d2180eba1e082db531d30f3ef2 |
memory/1724-34-0x0000000000DE0000-0x0000000000E96000-memory.dmp
memory/3036-56-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3036-53-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3036-52-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3036-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/3036-57-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3036-59-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3036-60-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3036-63-0x0000000000400000-0x0000000000421000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-19 10:58
Reported
2024-07-19 11:01
Platform
win10v2004-20240709-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Remcos
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3140 set thread context of 4132 | N/A | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe |
| PID 3684 set thread context of 3648 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rtzecNlXv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1B7.tmp"
C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation6547558,pdf.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rtzecNlXv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB83A.tmp"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
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 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | favour2021.ddns.net | udp |
| US | 216.218.135.118:1990 | favour2021.ddns.net | tcp |
| US | 8.8.8.8:53 | 118.135.218.216.in-addr.arpa | udp |
| US | 216.218.135.118:1990 | favour2021.ddns.net | tcp |
| US | 8.8.8.8:53 | 210.80.50.20.in-addr.arpa | udp |
Files
memory/3140-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp
memory/3140-1-0x0000000000C30000-0x0000000000CE6000-memory.dmp
memory/3140-2-0x0000000005670000-0x000000000570C000-memory.dmp
memory/3140-3-0x0000000005CC0000-0x0000000006264000-memory.dmp
memory/3140-4-0x00000000057B0000-0x0000000005842000-memory.dmp
memory/3140-5-0x0000000005740000-0x000000000574A000-memory.dmp
memory/3140-6-0x00000000059E0000-0x0000000005A36000-memory.dmp
memory/3140-7-0x0000000074C00000-0x00000000753B0000-memory.dmp
memory/3140-8-0x0000000005790000-0x000000000579A000-memory.dmp
memory/3140-9-0x0000000074C0E000-0x0000000074C0F000-memory.dmp
memory/3140-10-0x0000000074C00000-0x00000000753B0000-memory.dmp
memory/3140-11-0x0000000006620000-0x000000000667C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpB1B7.tmp
| MD5 | ff2d636190703bf42b22efde9d65936e |
| SHA1 | 6cdbc2abf06387fbb42fdb4ec5d846d2135b7392 |
| SHA256 | 06b22f247c6104b6272df539eb6d40929eb6ec3778b42ec77a4b88edffe368e6 |
| SHA512 | 40c71c4f92f7c5ad151fc0e0378ff0ecc086c3e12ce3408802e7df84531e12198217492e70e980e4e60c2b670becdcaa18e228fa3d35b38193319e217a6f175c |
memory/4132-17-0x0000000000400000-0x0000000000421000-memory.dmp
memory/4132-20-0x0000000000400000-0x0000000000421000-memory.dmp
memory/4132-23-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3140-24-0x0000000074C00000-0x00000000753B0000-memory.dmp
memory/4132-27-0x0000000000400000-0x0000000000421000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\install.vbs
| MD5 | b92d64fe5b1d1f59df4b738262aea8df |
| SHA1 | c8fb1981759c2d9bb2ec91b705985fba5fc7af63 |
| SHA256 | fa20e9aab03dc8e9f1910aaf0cf42662379fa16ae3a22642084fb97fa3d4f83a |
| SHA512 | 2566248b93c0cfb0414f033b8dd18bbd4f88180093eac2861107289bcb4ee160f9593706ff1f7d1f2e4ecea430d67a5a2897551a4f9ebd82b707243e300520e2 |
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
| MD5 | 8dbeaa2200e3dd4d09247606d25bec31 |
| SHA1 | 72265ac4686a37571cdd1f7a6961853de166dc00 |
| SHA256 | e45bc4ce4e4f84bedc7ec144517df1d16ea97b1803fa1b3cf21c581390b50bf8 |
| SHA512 | c73fbe6c7300ccb33e6b293ab6218d605e52e20651a3bf22f2c51b2326fe63bd7b4b0978dbd190d714c3d889eb2d9256c62722d2180eba1e082db531d30f3ef2 |
memory/3648-38-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3648-39-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3648-42-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3648-43-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3648-45-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3648-46-0x0000000000400000-0x0000000000421000-memory.dmp