Analysis Overview
SHA256
098fd9d5eb438af073651243c07bedcf9e1a1363f682bdefc124588d0cbf356a
Threat Level: Known bad
The file 384aaa214d78f738940194fb363e1898_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Remcos
Remcos family
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-12 04:37
Signatures
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-12 04:37
Reported
2024-05-12 04:40
Platform
win7-20240419-en
Max time kernel
149s
Max time network
122s
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-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Local\Temp\384aaa214d78f738940194fb363e1898_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Roaming\Remc\Remc.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| 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\384aaa214d78f738940194fb363e1898_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\384aaa214d78f738940194fb363e1898_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
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 | 384aaa214d78f738940194fb363e1898 |
| SHA1 | 5106b7555c4340eda60742654f403ac73e36cd01 |
| SHA256 | 098fd9d5eb438af073651243c07bedcf9e1a1363f682bdefc124588d0cbf356a |
| SHA512 | 4d4c505d6401a9f2a9f1c79dffa83c352911c0ca0d71e08799063ae91daed54bc48babc352532709fff9035de747f3b78f8232fad18d2a414ba64e1c8364e27a |
C:\Users\Admin\AppData\Roaming\Remc\logs.dat
| MD5 | 9a1c5fc1ce2d011a1149d12b118dcf3a |
| SHA1 | b847e439e59e5fa467c40d78f28c3b3ffb4da3e4 |
| SHA256 | a7f4fe9b473e2bd14e5f29672d81c6879e64119afef02110f1fa25c91090f166 |
| SHA512 | 60f35efee796de02f8e7fd4dbe56a6421a8af7ad2f0768c8faa58f18a7399474a43c6e4627fc39b9b38acbd4ebf07f69134b47c898f5db30e35b51ffcae2ae89 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-12 04:37
Reported
2024-05-12 04:40
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
126s
Command Line
Signatures
Remcos
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\384aaa214d78f738940194fb363e1898_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\erwfguyhjnxcj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remc\\Remc.exe\"" | C:\Users\Admin\AppData\Local\Temp\384aaa214d78f738940194fb363e1898_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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 1232 set thread context of 1772 | 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-1-5-21-1181767204-2009306918-3718769404-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\384aaa214d78f738940194fb363e1898_JaffaCakes118.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| 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\384aaa214d78f738940194fb363e1898_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\384aaa214d78f738940194fb363e1898_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
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1748,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=1404 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | civita2.no-ip.biz | udp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.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 | 14.179.89.13.in-addr.arpa | udp |
Files
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 | 384aaa214d78f738940194fb363e1898 |
| SHA1 | 5106b7555c4340eda60742654f403ac73e36cd01 |
| SHA256 | 098fd9d5eb438af073651243c07bedcf9e1a1363f682bdefc124588d0cbf356a |
| SHA512 | 4d4c505d6401a9f2a9f1c79dffa83c352911c0ca0d71e08799063ae91daed54bc48babc352532709fff9035de747f3b78f8232fad18d2a414ba64e1c8364e27a |
memory/1772-8-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1772-10-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1772-11-0x0000000000400000-0x000000000041E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Remc\logs.dat
| MD5 | e85f4908bf5440cdd69e619fdc7a417d |
| SHA1 | 6152af3a3302d52e28f7c6015bd7f46087d48043 |
| SHA256 | 1f453aa240f04833adff038adf84a619f0120b5730222ab6c378e712c02590a6 |
| SHA512 | cc64b64fccd9fe4dcf29f8fe1c7eb26d3453e7d2aac5a0f13b6b0d94641e6a4cce379c59e6279222d1c8f00b54de45cd71eb352b78de732403207d0815abd583 |