Analysis Overview
SHA256
c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929
Threat Level: Known bad
The file tmp was found to be: Known bad.
Malicious Activity Summary
Remcos
Drops startup file
Loads dropped DLL
Executes dropped EXE
Suspicious use of SetThreadContext
AutoIT Executable
Unsigned PE
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-04-09 11:36
Signatures
AutoIT Executable
| 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
2024-04-09 11:36
Reported
2024-04-09 11:38
Platform
win7-20240221-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
Remcos
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\excel.vbs | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2960 set thread context of 2552 | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | C:\Windows\SysWOW64\svchost.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\directory\excel.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Users\Admin\AppData\Local\directory\excel.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\SysWOW64\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | shgoini.com | udp |
| US | 107.175.229.143:30902 | shgoini.com | tcp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
Files
memory/1964-10-0x00000000001B0000-0x00000000001B4000-memory.dmp
\Users\Admin\AppData\Local\directory\excel.exe
| MD5 | eea22ca96e4c6cf50dbfa45ba038ca5d |
| SHA1 | f205a1adc28b0b22b64afadd9d6c47da1f765ba7 |
| SHA256 | 27986689d31cda7612a587a2c78c8d38588a2c1a7fc75b7ec70148f967d5c54f |
| SHA512 | 39d9aae6395697ef137c838577153fe85486307b60c0c30fe70814d678b67943e61964f38f6d582157dd6f01d3aa6aebdb9541b78f04157fc1e9e60054812f1a |
C:\Users\Admin\AppData\Local\Temp\saccule
| MD5 | 7b4ee3164750a624febb01f867bdb208 |
| SHA1 | 2c68f3bc9f02ef7229da72935b33053885ad19e0 |
| SHA256 | fc648d1008816e63cb562eec07b7ae56ab4c5be06da13282a213f9c9e6f3c2a5 |
| SHA512 | aa088d535f08520ba2299da40c2e5c6ee1375eb67ac9f2438f431bda1312d024e38793c1b074f08b0accf8bf89db630b46de5b9883036b84ab50b473bbc1dc41 |
C:\Users\Admin\AppData\Local\Temp\Thebit
| MD5 | a04675531940882479c988422f627c21 |
| SHA1 | 48bb45a49c1600e8f16ffe612170787f841cd969 |
| SHA256 | 011bee0b69f6d996fd2ddced3a417739375f6a3909ff46d23bcca2f0d14680d5 |
| SHA512 | f8f2e1c49d7a7153a8522488a259ff37927c6c133b2030fdf70728aa034b02f2fd704d2bba7ad6660eb0f6b3696108a26df1c479723330f49ea0e462c13ba24c |
memory/2552-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2552-47-0x0000000000400000-0x0000000000482000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-09 11:36
Reported
2024-04-09 11:38
Platform
win10v2004-20240226-en
Max time kernel
142s
Max time network
155s
Command Line
Signatures
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.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=3996 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| GB | 142.250.187.202:443 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 233.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.65.42.20.in-addr.arpa | udp |
Files
memory/5004-10-0x0000000000950000-0x0000000000954000-memory.dmp