Analysis Overview
SHA256
c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9
Threat Level: Known bad
The file c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9 was found to be: Known bad.
Malicious Activity Summary
Detects Windows executables referencing non-Windows User-Agents
Detect Xworm Payload
Xworm
Xworm family
Detects Windows executables referencing non-Windows User-Agents
Executes dropped EXE
Checks computer location settings
Drops startup file
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-28 02:52
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects Windows executables referencing non-Windows User-Agents
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-28 02:52
Reported
2024-05-28 02:55
Platform
win7-20240221-en
Max time kernel
148s
Max time network
148s
Command Line
Signatures
Detect Xworm Payload
| 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 |
Xworm
Detects Windows executables referencing non-Windows User-Agents
| 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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Update = "C:\\Users\\Admin\\AppData\\Roaming\\Update" | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe
"C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe"
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Update" /tr "C:\Users\Admin\AppData\Roaming\Update"
C:\Windows\system32\taskeng.exe
taskeng.exe {95F3D8CB-B084-4618-A38E-8C70A02FF599} S-1-5-21-1298544033-3225604241-2703760938-1000:IZKCKOTP\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | application-favorite.gl.at.ply.gg | udp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
Files
memory/2224-0-0x000007FEF5773000-0x000007FEF5774000-memory.dmp
memory/2224-1-0x0000000001260000-0x0000000001284000-memory.dmp
memory/2224-5-0x000007FEF5770000-0x000007FEF615C000-memory.dmp
memory/2224-6-0x000007FEF5773000-0x000007FEF5774000-memory.dmp
memory/2224-7-0x000007FEF5770000-0x000007FEF615C000-memory.dmp
C:\Users\Admin\AppData\Roaming\Update
| MD5 | 266ccd5f057f35e36891a0f9aeac48a9 |
| SHA1 | 4189e1cef377dd2b02f340e682f03414864bb6d0 |
| SHA256 | c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9 |
| SHA512 | 08efb382ef829fa5eb95ecad24a482ffef7190d9f582473910f8dfd1e23cb12b2823fbde773c19f3ae69ff5edeea9cfba4fe45762443001ad5007d73bec14ed4 |
memory/2972-11-0x0000000000C40000-0x0000000000C64000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-28 02:52
Reported
2024-05-28 02:55
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
161s
Command Line
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xworm
Detects Windows executables referencing non-Windows User-Agents
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Update | 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\Update = "C:\\Users\\Admin\\AppData\\Roaming\\Update" | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Update | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 468 wrote to memory of 3876 | N/A | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | C:\Windows\System32\schtasks.exe |
| PID 468 wrote to memory of 3876 | N/A | C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe | C:\Windows\System32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe
"C:\Users\Admin\AppData\Local\Temp\c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9.exe"
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Update" /tr "C:\Users\Admin\AppData\Roaming\Update"
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
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=3628 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
C:\Users\Admin\AppData\Roaming\Update
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | application-favorite.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | 164.189.21.2.in-addr.arpa | udp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 147.185.221.19:60795 | application-favorite.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 13.73.50.20.in-addr.arpa | udp |
Files
memory/468-0-0x00007FFED7BA3000-0x00007FFED7BA5000-memory.dmp
memory/468-1-0x00000000009E0000-0x0000000000A04000-memory.dmp
memory/468-5-0x00007FFED7BA0000-0x00007FFED8661000-memory.dmp
C:\Users\Admin\AppData\Roaming\Update
| MD5 | 266ccd5f057f35e36891a0f9aeac48a9 |
| SHA1 | 4189e1cef377dd2b02f340e682f03414864bb6d0 |
| SHA256 | c4eb985b24a9a9b011c391d3be6814e7721db0c5dd42ae2c7c105c8f0747d0d9 |
| SHA512 | 08efb382ef829fa5eb95ecad24a482ffef7190d9f582473910f8dfd1e23cb12b2823fbde773c19f3ae69ff5edeea9cfba4fe45762443001ad5007d73bec14ed4 |
memory/1520-8-0x00007FFED7BA0000-0x00007FFED8661000-memory.dmp
memory/468-9-0x00007FFED7BA3000-0x00007FFED7BA5000-memory.dmp
memory/1520-11-0x00007FFED7BA0000-0x00007FFED8661000-memory.dmp
memory/468-12-0x00007FFED7BA0000-0x00007FFED8661000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Update.log
| MD5 | 2ff39f6c7249774be85fd60a8f9a245e |
| SHA1 | 684ff36b31aedc1e587c8496c02722c6698c1c4e |
| SHA256 | e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced |
| SHA512 | 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1 |