Analysis Overview
SHA256
c3bab0f648527f6f1ce39bd437ca304d57264c4d45dd2bddef79f39be956640e
Threat Level: Known bad
The file 1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet
Executes dropped EXE
Uses the VBS compiler for execution
Adds Run key to start application
Drops file in System32 directory
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Runs ping.exe
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-27 19:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-27 19:57
Reported
2024-06-27 19:59
Platform
win7-20240221-en
Max time kernel
141s
Max time network
121s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\system32dll.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Uses the VBS compiler for execution
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\system32dll.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\system32dll.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\system32dll.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1312 set thread context of 2008 | N/A | C:\Users\Admin\AppData\Local\Temp\1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 616
Network
Files
memory/1312-0-0x00000000744A1000-0x00000000744A2000-memory.dmp
memory/1312-1-0x00000000744A0000-0x0000000074A4B000-memory.dmp
memory/1312-2-0x00000000744A0000-0x0000000074A4B000-memory.dmp
memory/2008-3-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-15-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-22-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-21-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2008-17-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-13-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-11-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-9-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-7-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-6-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-23-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-24-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2008-25-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/1312-26-0x00000000744A0000-0x0000000074A4B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat
| MD5 | 73b0495dfd90f2f77a64d3ac7f6e7c03 |
| SHA1 | 0503c56481fda524b90139b4d2e0b686765c355f |
| SHA256 | 0a4c374db7dcbe8944a2a3fc0d774247861318cc55494fe8b6f001fe46a69fc2 |
| SHA512 | 9d6fbe22f8441cf2b78506bde2535e4137af1c200fe36272d4fb0adea8f33360c93cb1619c3b667514f185d632a078760ebc0f47eeb0825979e468a7c2c88e39 |
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat
| MD5 | c6abd7a109bb37ab773b9e79b91b7741 |
| SHA1 | 7933b8795914b27483d2afed35b3830e8bf5bdb6 |
| SHA256 | 8bc84b3ddfd9c295f555926bf1c311be423732423c585ca90796cdee7a245629 |
| SHA512 | 35d14c9b7366a4737e3685223d55d85c583c7fbe73274577424dc8d9960cc78c79a80a8b42a62f6d9d9962ddd60cf2a332411d4ac18196258dc9d5b0b575e3dc |
memory/2008-47-0x0000000000400000-0x00000000004CB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-27 19:57
Reported
2024-06-27 20:00
Platform
win10v2004-20240226-en
Max time kernel
145s
Max time network
153s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\system32dll.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\system32dll.exe | N/A |
Uses the VBS compiler for execution
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\system32dll.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\system32dll.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\system32dll.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2136 set thread context of 1120 | N/A | C:\Users\Admin\AppData\Local\Temp\1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1753e5c51e39ae8b979d2b7ce213a446_JaffaCakes118.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
C:\Windows\SysWOW64\system32dll.exe
"C:\Windows\system32\system32dll.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 --mojo-platform-channel-handle=4112 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| GB | 96.16.110.114:80 | tcp | |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 76.234.34.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.166.122.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.179.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/2136-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp
memory/2136-1-0x0000000074FB0000-0x0000000075561000-memory.dmp
memory/2136-2-0x0000000074FB0000-0x0000000075561000-memory.dmp
memory/1120-3-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/1120-4-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/1120-6-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2136-7-0x0000000074FB0000-0x0000000075561000-memory.dmp
memory/1120-8-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/1120-9-0x0000000000400000-0x00000000004CB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat
| MD5 | 638415f09175908af6b20ffa78526db1 |
| SHA1 | 87c3527c6ad7721245820f68bfa32be11e0a916c |
| SHA256 | 0a46d339ddfa8ccdfe17c055190f19e873120e9ae3722f6601464281d0011d60 |
| SHA512 | 85198b6a713218ed7d0ecf0b49c79d8ced0f7ff38f20ef11baa4a63fcbe1201069de08b79153d5a26d0efa3c1fefbfdb19326cf77335065abaf417cd21fd8a9b |
C:\Windows\SysWOW64\system32dll.exe
| MD5 | d881de17aa8f2e2c08cbb7b265f928f9 |
| SHA1 | 08936aebc87decf0af6e8eada191062b5e65ac2a |
| SHA256 | b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0 |
| SHA512 | 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34 |
memory/1120-83-0x0000000000400000-0x00000000004CB000-memory.dmp