Analysis Overview
SHA256
aeb8e080b996a75f85bb82e2e7a42d0302735713f34fb95fff1bfb97a030e107
Threat Level: Known bad
The file bbe4ba566d229a405da3af72193d297f.exe was found to be: Known bad.
Malicious Activity Summary
NanoCore
Modifies WinLogon for persistence
PureCrypter
Detect PureCrypter injector
Checks computer location settings
Checks whether UAC is enabled
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-02-05 21:11
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-02-05 21:11
Reported
2023-02-05 21:13
Platform
win7-20221111-en
Max time kernel
59s
Max time network
150s
Command Line
Signatures
Detect PureCrypter injector
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\Flash Player.exe\"," | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
NanoCore
PureCrypter
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2032 set thread context of 904 | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe
"C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe
C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rcontrol4sec.ddnsgeek.com | udp |
| FR | 185.81.157.236:5080 | rcontrol4sec.ddnsgeek.com | tcp |
Files
memory/2032-54-0x0000000000CF0000-0x0000000000E40000-memory.dmp
memory/2032-55-0x0000000004D30000-0x0000000004FB2000-memory.dmp
memory/2032-56-0x00000000767B1000-0x00000000767B3000-memory.dmp
memory/1500-57-0x0000000000000000-mapping.dmp
memory/1500-59-0x0000000070010000-0x00000000705BB000-memory.dmp
memory/1500-60-0x0000000070010000-0x00000000705BB000-memory.dmp
memory/1500-61-0x0000000070010000-0x00000000705BB000-memory.dmp
memory/2032-62-0x00000000045E0000-0x0000000004646000-memory.dmp
memory/904-63-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-64-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-66-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-67-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-69-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-70-0x000000000041E792-mapping.dmp
memory/904-72-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-74-0x0000000000400000-0x0000000000438000-memory.dmp
memory/904-76-0x0000000000650000-0x000000000065A000-memory.dmp
memory/904-77-0x0000000000660000-0x000000000067E000-memory.dmp
memory/904-78-0x0000000000680000-0x000000000068A000-memory.dmp
memory/904-79-0x0000000000B00000-0x0000000000B12000-memory.dmp
memory/904-80-0x0000000000B50000-0x0000000000B6A000-memory.dmp
memory/904-81-0x0000000000B80000-0x0000000000B8E000-memory.dmp
memory/904-82-0x0000000000CE0000-0x0000000000CF2000-memory.dmp
memory/904-83-0x0000000004820000-0x000000000482E000-memory.dmp
memory/904-84-0x0000000004830000-0x000000000483C000-memory.dmp
memory/904-85-0x0000000004840000-0x0000000004854000-memory.dmp
memory/904-86-0x0000000004B70000-0x0000000004B7C000-memory.dmp
memory/904-87-0x0000000004B80000-0x0000000004B90000-memory.dmp
memory/904-88-0x0000000004B90000-0x0000000004BA4000-memory.dmp
memory/904-89-0x0000000004BB0000-0x0000000004BBE000-memory.dmp
memory/904-90-0x0000000004CD0000-0x0000000004CFE000-memory.dmp
memory/904-91-0x0000000004D00000-0x0000000004D14000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-02-05 21:11
Reported
2023-02-05 21:13
Platform
win10v2004-20221111-en
Max time kernel
91s
Max time network
151s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\Flash Player.exe\"," | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
NanoCore
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4736 set thread context of 4928 | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe
"C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe
C:\Users\Admin\AppData\Local\Temp\bbe4ba566d229a405da3af72193d297f.exe
Network
| Country | Destination | Domain | Proto |
| NL | 88.221.25.154:80 | tcp | |
| NL | 104.80.225.205:443 | tcp | |
| US | 8.8.8.8:53 | rcontrol4sec.ddnsgeek.com | udp |
| FR | 185.81.157.236:5080 | rcontrol4sec.ddnsgeek.com | tcp |
| NL | 52.178.17.3:443 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 209.197.3.8:80 | tcp |
Files
memory/4736-132-0x00000000009B0000-0x0000000000B00000-memory.dmp
memory/4736-133-0x0000000005890000-0x00000000058B2000-memory.dmp
memory/1028-134-0x0000000000000000-mapping.dmp
memory/1028-135-0x0000000004EE0000-0x0000000004F16000-memory.dmp
memory/1028-136-0x0000000005590000-0x0000000005BB8000-memory.dmp
memory/1028-137-0x0000000005C30000-0x0000000005C96000-memory.dmp
memory/1028-138-0x0000000005E90000-0x0000000005EF6000-memory.dmp
memory/1028-139-0x00000000064B0000-0x00000000064CE000-memory.dmp
memory/1028-140-0x0000000007CF0000-0x000000000836A000-memory.dmp
memory/1028-141-0x00000000069B0000-0x00000000069CA000-memory.dmp
memory/4928-142-0x0000000000000000-mapping.dmp
memory/4928-143-0x0000000000400000-0x0000000000438000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\bbe4ba566d229a405da3af72193d297f.exe.log
| MD5 | a713c363be116d5ed1f971db6a657e4f |
| SHA1 | 90791863564c9ed38e7b4f047022dec4474060a1 |
| SHA256 | 4b5c446ec8ed2a2696ba00a0890763d413006ce1ea1a7a32fda1655720aef46e |
| SHA512 | 5dc740414a6ec30908e924f3bdfae2f761a35a476ef2dda239b789575a0a3696169deb6dc84a14d5828eaa5644623f107b2c686bfa4f54a90f0688239b4b1739 |
memory/4928-145-0x00000000059C0000-0x0000000005F64000-memory.dmp
memory/4928-146-0x00000000054B0000-0x0000000005542000-memory.dmp
memory/4928-147-0x0000000005550000-0x00000000055EC000-memory.dmp
memory/4928-148-0x0000000005490000-0x000000000549A000-memory.dmp