Analysis Overview
SHA256
8c5d1e372be183f79a1e791b42c234e7abd1b4f83616803633e60a0db12366fd
Threat Level: Known bad
The file bec83a08a91042c1b2821e5e017a7454_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies visiblity of hidden/system files in Explorer
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-04 17:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-04 17:50
Reported
2024-04-04 17:52
Platform
win7-20240221-en
Max time kernel
150s
Max time network
118s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Users\Admin\kiroq.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\kiroq.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\kiroq = "C:\\Users\\Admin\\kiroq.exe" | C:\Users\Admin\kiroq.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\kiroq.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe"
C:\Users\Admin\kiroq.exe
"C:\Users\Admin\kiroq.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ns2.thepicturehut.net | udp |
Files
\Users\Admin\kiroq.exe
| MD5 | 6d082ddb44121bafd70b6c4d72b46a75 |
| SHA1 | 3d86bd43ad14f51f7f6989d823fe10ad39d780a3 |
| SHA256 | 47e80c3c72f3ceca42bf64828f7a63a35d3192897874d2678ddff17e9f271dfc |
| SHA512 | bd374df13964fa6f70355fa94af30097a07270f3b56e8f79e3dfa0792d1eebe693ea52d534cad8238f99b47f5f8384138cdc9da3c37f3671b9b05f602db8030d |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-04 17:50
Reported
2024-04-04 17:52
Platform
win10v2004-20240226-en
Max time kernel
152s
Max time network
156s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Users\Admin\woudu.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\woudu.exe | N/A |
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\woudu = "C:\\Users\\Admin\\woudu.exe" | C:\Users\Admin\woudu.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\woudu.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bec83a08a91042c1b2821e5e017a7454_JaffaCakes118.exe"
C:\Users\Admin\woudu.exe
"C:\Users\Admin\woudu.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=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ns1.thepicturehut.net | udp |
| GB | 23.44.234.16:80 | tcp | |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 41.110.86.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.162.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.66.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.117.168.52.in-addr.arpa | udp |
Files
C:\Users\Admin\woudu.exe
| MD5 | 5d2579377d7a2259e175c9a1bda5a56e |
| SHA1 | 55f44e09257b79d5a7a3bfe8a97868b2dcf332c4 |
| SHA256 | c678c534577c83171f7ed75a3a5d431b93c93278bb563e003708e25713a65e3a |
| SHA512 | f5dcd6351ec22b4f4171b36def1351c07436f5eb514d991615b2e97de1b6f94ec502cbaf985d00b656cab88cb3db85d04960002e38044264aef5174e32fcecff |