Analysis Overview
SHA256
dfbbc4d8e684ccbb14739ab8e6ddc8dde751dc8ce55fd50717d4c0e7353402c4
Threat Level: Likely malicious
The file Win7Recovery.zip was found to be: Likely malicious.
Malicious Activity Summary
Disables Task Manager via registry modification
Loads dropped DLL
UPX packed file
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
System policy modification
Suspicious behavior: EnumeratesProcesses
Modifies Internet Explorer settings
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-02 16:40
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-02 16:40
Reported
2024-03-02 16:41
Platform
win7-20240221-en
Max time kernel
18s
Max time network
16s
Command Line
Signatures
Disables Task Manager via registry modification
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\WbVhxCIDDK.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | 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\WbVhxCIDDK = "C:\\ProgramData\\WbVhxCIDDK.exe" | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Download | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no" | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2164 wrote to memory of 2032 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\ProgramData\WbVhxCIDDK.exe |
| PID 2164 wrote to memory of 2032 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\ProgramData\WbVhxCIDDK.exe |
| PID 2164 wrote to memory of 2032 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\ProgramData\WbVhxCIDDK.exe |
| PID 2164 wrote to memory of 2032 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\ProgramData\WbVhxCIDDK.exe |
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1" | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
C:\ProgramData\WbVhxCIDDK.exe
"C:\ProgramData\WbVhxCIDDK.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | searchalice.org | udp |
| US | 8.8.8.8:53 | clickbatonrouge.org | udp |
| US | 8.8.8.8:53 | searchatlantic.org | udp |
| US | 8.8.8.8:53 | searchbeen.org | udp |
| US | 8.8.8.8:53 | searchant.org | udp |
| US | 8.8.8.8:53 | clickfer.org | udp |
| US | 3.33.130.190:80 | clickfer.org | tcp |
| US | 3.33.130.190:443 | clickfer.org | tcp |
| US | 3.33.130.190:443 | clickfer.org | tcp |
| US | 8.8.8.8:53 | searchbowl.org | udp |
Files
memory/2164-0-0x0000000000600000-0x0000000000678000-memory.dmp
memory/2164-1-0x00000000002D0000-0x000000000032D000-memory.dmp
memory/2164-3-0x0000000000600000-0x0000000000678000-memory.dmp
\ProgramData\WbVhxCIDDK.exe
| MD5 | ab65e866abc51f841465d19aba35fb14 |
| SHA1 | ec79f1f511a199291b0893bc866a788ceac19f6e |
| SHA256 | 2ac0ca4ffda10b1861dd4ae0c2f0131a6400214cb4f5fa33951f3062b784a755 |
| SHA512 | 2474905f174635b236e5f6e8f8c497e44435c94edd02ec47d3440c9a216f6840d040e6acc5fe2ec301ada80467f6cf55225d6361c1e7c6c6c7edccb9e7b5a35e |
memory/2032-13-0x00000000002B0000-0x000000000030D000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | 753df6889fd7410a2e9fe333da83a429 |
| SHA1 | 3c425f16e8267186061dd48ac1c77c122962456e |
| SHA256 | b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78 |
| SHA512 | 9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444 |
C:\Users\Admin\AppData\Local\Temp\Tar500B.tmp
| MD5 | dd73cead4b93366cf3465c8cd32e2796 |
| SHA1 | 74546226dfe9ceb8184651e920d1dbfb432b314e |
| SHA256 | a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22 |
| SHA512 | ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63 |
memory/2164-133-0x00000000002D0000-0x000000000032D000-memory.dmp