Analysis Overview
SHA256
20880bb6f71040cecbb2d9a79c3071f5fea80c50d35cbcf9f0e5783461adc893
Threat Level: Known bad
The file 8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
UAC bypass
Executes dropped EXE
Loads dropped DLL
Looks up external IP address via web service
Checks whether UAC is enabled
Adds Run key to start application
Drops file in System32 directory
Drops file in Windows directory
Enumerates physical storage devices
Program crash
Unsigned PE
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
System policy modification
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-02 01:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-02 01:39
Reported
2024-06-02 01:42
Platform
win7-20240221-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\wulmrcma\jkiaaaa.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Fonts.Lists | C:\Windows\wulmrcma\jkiaaaa.exe | N/A |
| File created | C:\Windows\wulmrcma\conf.ini | C:\Windows\wulmrcma\jkiaaaa.exe | N/A |
| File opened for modification | C:\Windows\wulmrcma | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| File created | C:\Windows\wulmrcma\jkiaaaa.exe | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\wulmrcma\jkiaaaa.exe |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe"
C:\Windows\wulmrcma\jkiaaaa.exe
C:\Windows\wulmrcma\jkiaaaa.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 568
Network
| Country | Destination | Domain | Proto |
| JP | 210.134.66.83:55554 | tcp | |
| US | 8.8.8.8:53 | www.google.com | udp |
| GB | 142.250.187.196:80 | www.google.com | tcp |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.66.83:55554 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\Config.ini
| MD5 | d2daea27ed35c95855500b083fbb9401 |
| SHA1 | 6b46107eca4365f90a3f2e86fbe89fc92dd8e575 |
| SHA256 | b455afa508f6e005c3111dfd599348e1b64d7a2215e3970eb888dfd740640696 |
| SHA512 | 663c79911de565f8a3eae1ff7a340a1c564d8b2bd6e89df47a5c6d7dc2b707077a1c21304338ac908c7dfb21d90e09764141fd927d985329f059cbe9665515c6 |
\Windows\wulmrcma\jkiaaaa.exe
| MD5 | 5243fa11db5e0f7ab6bdbc4243fedd2a |
| SHA1 | 22709d5eb3b82412220d94fcbc2086230b578edc |
| SHA256 | 4b59b435e6be9d2c8d15237f285e5d163b5a8aae0fd07378fa85f38237c23d8b |
| SHA512 | 23cb4e45d5293c407dfc4f3b0a9b2874608d7efe076606ab06194114f6571902b4336ce07f80ac98f0d12221fdb2261fd35b35bbc02fe614fc20c3544e853ebd |
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-330940541-141609230-1670313778-1000\3310a4fa6cb9c60504498d7eea986fc2_4456596e-0528-4680-8940-5edc26c0ff50
| MD5 | 45218adff3ea5bde8a8f61987f0f458b |
| SHA1 | cf7fffa410795cc2f7703755f0acd17b51a44ad7 |
| SHA256 | f95361b82464704675f559b13c007c9567e5914984042f537122383e747194d4 |
| SHA512 | 8442cac48931075ec5bd31ea82faffc4f64d7b6845d5c477d06fc3d7eefeac1fa366b6880a85709a520a343b5dd3771e69bc4b7482cde50e69e04215927a2018 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 01:39
Reported
2024-06-02 01:42
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| N/A | N/A | C:\Windows\PLA\userplus.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\PLA\userplus.exe | N/A |
| N/A | N/A | C:\Windows\PLA\userplus.exe | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\plus = "C:\\Windows\\mmodyaox\\znsaaaa.exe" | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\NlsLexicons00ssx.dll | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File created | C:\Windows\system32\NlsLexicons00mmx.dll | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\mmodyaox | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\Fonts.Lists | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File created | C:\Windows\mmodyaox\conf.ini | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File opened for modification | C:\Windows\system\system.log | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File created | C:\Windows\PLA\userplus.exe | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File opened for modification | C:\Windows\Media\shomll.log | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File created | C:\Windows\Media\shomll.log | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File created | C:\Windows\mmodyaox\znsaaaa.exe | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| File created | C:\Windows\Setup\Extensionm.dll | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| File created | C:\Windows\mmodyaox\Tempznsaaaa.exe | C:\Windows\PLA\userplus.exe | N/A |
| File opened for modification | C:\Windows\mmodyaox\Tempznsaaaa.exe | C:\Windows\PLA\userplus.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\PLA\userplus.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1372 wrote to memory of 3900 | N/A | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | C:\Windows\mmodyaox\znsaaaa.exe |
| PID 1372 wrote to memory of 3900 | N/A | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | C:\Windows\mmodyaox\znsaaaa.exe |
| PID 1372 wrote to memory of 3900 | N/A | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | C:\Windows\mmodyaox\znsaaaa.exe |
| PID 3900 wrote to memory of 4440 | N/A | C:\Windows\mmodyaox\znsaaaa.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3900 wrote to memory of 4440 | N/A | C:\Windows\mmodyaox\znsaaaa.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3900 wrote to memory of 4440 | N/A | C:\Windows\mmodyaox\znsaaaa.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4440 wrote to memory of 2604 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\PLA\userplus.exe |
| PID 4440 wrote to memory of 2604 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\PLA\userplus.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Windows\mmodyaox\znsaaaa.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe"
C:\Windows\mmodyaox\znsaaaa.exe
C:\Windows\mmodyaox\znsaaaa.exe
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Windows\PLA\userplus.exe"
C:\Windows\PLA\userplus.exe
C:\Windows\PLA\userplus.exe
Network
| Country | Destination | Domain | Proto |
| JP | 210.134.66.83:55554 | tcp | |
| US | 8.8.8.8:53 | www.google.com | udp |
| GB | 142.250.187.196:80 | www.google.com | tcp |
| US | 8.8.8.8:53 | bibiballf.zz.am | udp |
| US | 8.8.8.8:53 | bibiballd.zz.am | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| DE | 193.122.6.168:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| US | 8.8.8.8:53 | 168.6.122.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| 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 |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| US | 52.111.227.11:443 | tcp | |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
| JP | 210.134.66.83:55554 | tcp | |
| JP | 210.134.71.220:55551 | bibiballd.zz.am | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\Config.ini
| MD5 | d2daea27ed35c95855500b083fbb9401 |
| SHA1 | 6b46107eca4365f90a3f2e86fbe89fc92dd8e575 |
| SHA256 | b455afa508f6e005c3111dfd599348e1b64d7a2215e3970eb888dfd740640696 |
| SHA512 | 663c79911de565f8a3eae1ff7a340a1c564d8b2bd6e89df47a5c6d7dc2b707077a1c21304338ac908c7dfb21d90e09764141fd927d985329f059cbe9665515c6 |
C:\Windows\mmodyaox\znsaaaa.exe
| MD5 | 5243fa11db5e0f7ab6bdbc4243fedd2a |
| SHA1 | 22709d5eb3b82412220d94fcbc2086230b578edc |
| SHA256 | 4b59b435e6be9d2c8d15237f285e5d163b5a8aae0fd07378fa85f38237c23d8b |
| SHA512 | 23cb4e45d5293c407dfc4f3b0a9b2874608d7efe076606ab06194114f6571902b4336ce07f80ac98f0d12221fdb2261fd35b35bbc02fe614fc20c3544e853ebd |
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-540404634-651139247-2967210625-1000\3310a4fa6cb9c60504498d7eea986fc2_41e50f4a-4a76-42e1-a3df-51306e426307
| MD5 | 45218adff3ea5bde8a8f61987f0f458b |
| SHA1 | cf7fffa410795cc2f7703755f0acd17b51a44ad7 |
| SHA256 | f95361b82464704675f559b13c007c9567e5914984042f537122383e747194d4 |
| SHA512 | 8442cac48931075ec5bd31ea82faffc4f64d7b6845d5c477d06fc3d7eefeac1fa366b6880a85709a520a343b5dd3771e69bc4b7482cde50e69e04215927a2018 |
C:\Windows\mmodyaox\conf.ini
| MD5 | 9ca8e9158e2cd31e6756c86265ff89de |
| SHA1 | f0747b4b325833c743c5ed799d8a94ee7a043429 |
| SHA256 | 029afa1b15c77ae61a2ec68c66ffd439ca7d4687fa4c968a746c756d895532b6 |
| SHA512 | 6becdda182d7f4a2252b548220159eb5300904b5c6eef598b3e7c442808080d5e686fced68f83f1762a904b3227669f82b3196538ab569762ff5560e22e2801e |
C:\Windows\PLA\userplus.exe
| MD5 | ba44267754b92c5afeb5ec2df0c5876f |
| SHA1 | 55b402f471cc6330cf92ca8ed15f40f5e6a5b0a5 |
| SHA256 | a0b260886f386461d170f8c150038ccfa7a2a21543312c0acdce835f87474877 |
| SHA512 | a4dff971570c05d5a54419b6186796fc15e1fc888a460a4d53c1b5c43e0bcf499f16fa30aa6e795b0ee1d6d521b5267e705087fb61ea59ffaf27e1e41adb003b |
C:\Windows\system32\NlsLexicons00mmx.dll
| MD5 | ca43974f638606af7259397a344e0434 |
| SHA1 | 02b7cf6e2a7fd77f619e27c7584180a950aa7fe8 |
| SHA256 | 4f394c128557a3f05c817aae8ddd005e2f462b298b858b1d49277fe574ce6752 |
| SHA512 | ab986229c156f1404895983399c64513cc13be3083309b9b61413024922fbf3322e203184e19bb5090c78b813a28362d345a1cb229e61e67d91dd803512a4786 |
C:\Windows\system32\NlsLexicons00ssx.dll
| MD5 | b1a562ae50903a943e6e0884a7c3aa28 |
| SHA1 | 57fcd5de222c7f99bd82372056127841fbc80e6e |
| SHA256 | 8402155eb3a3fb0fdc7ce7bbea87e8a59d81ae03e46d5d2ff041663d7051d3fc |
| SHA512 | a1b7bcce916e80c2cf83029471f665bb0dfe411341c1817a0a3b0bdc758f24a45676b2b000890578320cbb6c4457ed23535188cff2d7fddcacedebcd8a414dab |
memory/2604-173-0x00007FFA72B60000-0x00007FFA72B70000-memory.dmp
memory/2604-177-0x00007FFA72C0D000-0x00007FFA72C0E000-memory.dmp
memory/2604-178-0x00007FFA72B70000-0x00007FFA72D65000-memory.dmp