Analysis Overview
SHA256
80f6104926429d0109f63d8181997c1a9baac48a9386c617d3958321631e2f62
Threat Level: Known bad
The file 3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Remcos
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Modifies registry class
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-12 08:47
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-12 08:47
Reported
2024-05-12 08:50
Platform
win7-20240221-en
Max time kernel
148s
Max time network
124s
Command Line
Signatures
Remcos
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| 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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2372 set thread context of 2532 | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | C:\Windows\SysWOW64\svchost.exe |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.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\Remc\Remc.exe"
C:\Users\Admin\AppData\Roaming\Remc\Remc.exe
C:\Users\Admin\AppData\Roaming\Remc\Remc.exe
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | civita2.no-ip.biz | udp |
Files
memory/2904-2-0x0000000077330000-0x0000000077406000-memory.dmp
memory/2904-3-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2904-4-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2904-7-0x0000000072940000-0x0000000072A60000-memory.dmp
memory/2904-10-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2904-11-0x0000000072940000-0x0000000072A60000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\install.vbs
| MD5 | 837b54af2c8d285fb69d719cc9061206 |
| SHA1 | b31b75216a46b744eb0d89dd9885431a8ecde820 |
| SHA256 | 353bf067c7071e2b6904205a0f6755433a8711a4b2a9b48ac32ff538463f0e46 |
| SHA512 | 6cc4e846538cf16de26004343a157a565fe9730ad5c253e3fb6c64098405849e732bd2216fbdecd52cc3cbcb84e24e4dca23b5fd4f68bcdc0e73d485479e2311 |
\Users\Admin\AppData\Roaming\Remc\Remc.exe
| MD5 | 3941ba2f0f8d6c62b9931714c992c76e |
| SHA1 | 2ae4da950a5b71047bf2b67f7b76b9044375d1f9 |
| SHA256 | 80f6104926429d0109f63d8181997c1a9baac48a9386c617d3958321631e2f62 |
| SHA512 | bac1e9e84473cfd4dc01ea5e72160613f80e5e17826c1a842ac84f2e83c7e2bad9a898478f72351f990bc06c68a71ee091b88f98a2d7c8268bb3b506972a5976 |
memory/2372-22-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2372-19-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-37-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2532-34-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-32-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-30-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-28-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-26-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2532-24-0x0000000000400000-0x000000000041E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Remc\logs.dat
| MD5 | ca2ab9eb164b61575471e781fe645480 |
| SHA1 | 4fc23def925f950dfd9c3be906a3e6c3181b11eb |
| SHA256 | 5d6a52d0a3beabe5556d0a1a139b2199d29c6121ca3b6ee5c62b629b94ce9542 |
| SHA512 | ee3a7344f85dfdb73c7ff0b97b4d9d3cd909bcbbb47246453e8c20749ac6b41c1d6936db845a1ea9eeea24e7be364570216a127918fef44a43dc292e330324c4 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-12 08:47
Reported
2024-05-12 08:50
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Remcos
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4400 set thread context of 1696 | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | C:\Windows\SysWOW64\svchost.exe |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3941ba2f0f8d6c62b9931714c992c76e_JaffaCakes118.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\Remc\Remc.exe"
C:\Users\Admin\AppData\Roaming\Remc\Remc.exe
C:\Users\Admin\AppData\Roaming\Remc\Remc.exe
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.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 | 183.142.211.20.in-addr.arpa | udp |
| NL | 23.62.61.88:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| NL | 23.62.61.88:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | civita2.no-ip.biz | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 24.73.42.20.in-addr.arpa | udp |
Files
memory/692-2-0x0000000077771000-0x0000000077891000-memory.dmp
memory/692-5-0x0000000000400000-0x000000000041E000-memory.dmp
memory/692-7-0x0000000000400000-0x000000000048A000-memory.dmp
memory/692-10-0x0000000000400000-0x000000000041E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\install.vbs
| MD5 | 837b54af2c8d285fb69d719cc9061206 |
| SHA1 | b31b75216a46b744eb0d89dd9885431a8ecde820 |
| SHA256 | 353bf067c7071e2b6904205a0f6755433a8711a4b2a9b48ac32ff538463f0e46 |
| SHA512 | 6cc4e846538cf16de26004343a157a565fe9730ad5c253e3fb6c64098405849e732bd2216fbdecd52cc3cbcb84e24e4dca23b5fd4f68bcdc0e73d485479e2311 |
C:\Users\Admin\AppData\Roaming\Remc\Remc.exe
| MD5 | 3941ba2f0f8d6c62b9931714c992c76e |
| SHA1 | 2ae4da950a5b71047bf2b67f7b76b9044375d1f9 |
| SHA256 | 80f6104926429d0109f63d8181997c1a9baac48a9386c617d3958321631e2f62 |
| SHA512 | bac1e9e84473cfd4dc01ea5e72160613f80e5e17826c1a842ac84f2e83c7e2bad9a898478f72351f990bc06c68a71ee091b88f98a2d7c8268bb3b506972a5976 |
memory/4400-21-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4400-18-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1696-23-0x0000000000400000-0x000000000041E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Remc\logs.dat
| MD5 | 89cc2b10ffd306bb22b45e6c3c5b4cc7 |
| SHA1 | bab6162011273cb2ff6ad3c65376c66e69172e6c |
| SHA256 | a9d3fca0d90d17956bd2f45dad917a683ea1df88197f517afd31799b5d39bbc1 |
| SHA512 | 626c6d4856d60832df04823ea6103ca046945171f3516e6613c1282dfe047065bd06473d2452dd57a5c78e99b9cf60ea9c7818091895fdcd4df4e58825d09069 |