Analysis Overview
SHA256
2da32a3fb4b638dab82db44716c2b34b12e1bebea81a66addd21548de6ad4726
Threat Level: Shows suspicious behavior
The file 11784195c26e94ee11749a3db08bedef_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
UPX packed file
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops file in Windows directory
Access Token Manipulation: Create Process with Token
Unsigned PE
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-26 09:11
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-26 09:11
Reported
2024-06-26 09:13
Platform
win7-20240220-en
Max time kernel
149s
Max time network
121s
Command Line
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\msjeome.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\msjeome.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
Access Token Manipulation: Create Process with Token
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "11784195c26e94ee11749a3db08bedef_JaffaCakes118.dll,1311743982,537286218,-1814625877" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\11784195c26e94ee11749a3db08bedef_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\11784195c26e94ee11749a3db08bedef_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32 "C:\Windows\msjeome.dll",_RunAs@16
Network
Files
memory/2276-0-0x0000000010000000-0x000000001001F000-memory.dmp
memory/2276-1-0x0000000010000000-0x000000001001F000-memory.dmp
C:\Windows\msjeome.dll
| MD5 | 11784195c26e94ee11749a3db08bedef |
| SHA1 | c6bff3b152da206c142d4ae0662233f02cd2cf54 |
| SHA256 | 2da32a3fb4b638dab82db44716c2b34b12e1bebea81a66addd21548de6ad4726 |
| SHA512 | 042bc9207e7f6616cca088fbd5815a6ffb23ddc83db14579e7499d723fdff7544e7eace2aab3369f67f3f91a117481e48358f439392baafd9a766ced4c696ec9 |
memory/2568-6-0x0000000010000000-0x000000001001F000-memory.dmp
memory/2568-7-0x0000000010000000-0x000000001001F000-memory.dmp
memory/2568-8-0x0000000010000000-0x000000001001F000-memory.dmp
memory/2568-9-0x0000000010000000-0x000000001001F000-memory.dmp
memory/2276-10-0x0000000010000000-0x000000001001F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-26 09:11
Reported
2024-06-26 09:13
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
127s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\msjeome.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\msjeome.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
Access Token Manipulation: Create Process with Token
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "11784195c26e94ee11749a3db08bedef_JaffaCakes118.dll,1311743982,537286218,-1814625877" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2472 wrote to memory of 1380 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2472 wrote to memory of 1380 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2472 wrote to memory of 1380 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1380 wrote to memory of 208 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1380 wrote to memory of 208 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1380 wrote to memory of 208 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\11784195c26e94ee11749a3db08bedef_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\11784195c26e94ee11749a3db08bedef_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32 "C:\Windows\msjeome.dll",_RunAs@16
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=1272,i,13544508926340531097,6671217806016090640,262144 --variations-seed-version --mojo-platform-channel-handle=4224 /prefetch:8
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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 80.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.173.189.20.in-addr.arpa | udp |
Files
memory/1380-0-0x0000000010000000-0x000000001001F000-memory.dmp
C:\Windows\msjeome.dll
| MD5 | 11784195c26e94ee11749a3db08bedef |
| SHA1 | c6bff3b152da206c142d4ae0662233f02cd2cf54 |
| SHA256 | 2da32a3fb4b638dab82db44716c2b34b12e1bebea81a66addd21548de6ad4726 |
| SHA512 | 042bc9207e7f6616cca088fbd5815a6ffb23ddc83db14579e7499d723fdff7544e7eace2aab3369f67f3f91a117481e48358f439392baafd9a766ced4c696ec9 |
memory/208-6-0x0000000010000000-0x000000001001F000-memory.dmp
memory/1380-7-0x0000000010000000-0x000000001001F000-memory.dmp
memory/208-8-0x0000000010000000-0x000000001001F000-memory.dmp