Analysis Overview
SHA256
10fe9e0b3b861a06727addb3e0291727bdd8cd91bebbed4b3d6bc901aa15dde1
Threat Level: Known bad
The file 35e31d508c28c89153ef55ffe8c8ba53.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-17 07:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-17 07:36
Reported
2024-06-17 07:38
Platform
win7-20240611-en
Max time kernel
141s
Max time network
144s
Command Line
Signatures
AsyncRat
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\LicGen.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\Duyiyilycdc = "C:\\Users\\Admin\\AppData\\Roaming\\Duyiyilycdc.exe" | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1548 set thread context of 3168 | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
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 |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe
"C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHAAYQB0ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHoAdgB3ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHcAcwB0ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHUAZABuACMAPgA="
C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe
"C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe"
C:\Users\Admin\AppData\Local\Temp\LicGen.exe
"C:\Users\Admin\AppData\Local\Temp\LicGen.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 95.211.208.153:6606 | tcp |
Files
\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe
| MD5 | 5870c41c149fdd038336b2a1b2103e2f |
| SHA1 | d3efce3cc94fb928113481aee8d58cdeea24a708 |
| SHA256 | 9b489f300c3797e9d343a47ecd96e83646a61b02c28b5e68071d26a5a666c929 |
| SHA512 | 9fdbc2281e54dc640e8b2598faedabffe70f3fc739d88a603c0d43a8496fc08b07fcebd63fabd11d69c3393edb28eec867ab505a5c694ebe17632d04fe8952a7 |
\Users\Admin\AppData\Local\Temp\LicGen.exe
| MD5 | 63404fb2f5a0d14e7a19fa3e4b8af577 |
| SHA1 | 12d4ecfcfe8f9fa53fbc4f7addb43ab118da8255 |
| SHA256 | d599ed299630b163afb1aa64f6f5bdd92969dd9abfca1e32d1df4a93608fefeb |
| SHA512 | 19aae9580fa9be4c14401f144f04366a1c21cb9c9ae268a4e75f9e0364f49e9e18242ec0f49c7ec349328530b960b3890e1197d417db9986c763e098844e7416 |
memory/1896-13-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/1548-16-0x0000000000E80000-0x00000000010E2000-memory.dmp
memory/1548-17-0x0000000004E10000-0x0000000005030000-memory.dmp
memory/1548-18-0x0000000006260000-0x0000000006482000-memory.dmp
memory/1548-22-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-19-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-20-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-39-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-46-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-24-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-26-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-44-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-42-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-40-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-36-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-34-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-32-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-48-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-30-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-28-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-52-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-56-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-58-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-54-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-50-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-60-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-62-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-64-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-76-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-82-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-80-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-4906-0x0000000000E10000-0x0000000000E5C000-memory.dmp
memory/1548-4905-0x0000000000D10000-0x0000000000D6C000-memory.dmp
memory/1548-78-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-74-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-72-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-70-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-68-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-66-0x0000000006260000-0x000000000647C000-memory.dmp
memory/1548-4907-0x00000000044F0000-0x0000000004544000-memory.dmp
memory/3168-4921-0x0000000000400000-0x0000000000412000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab31AD.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/1896-4940-0x0000000000400000-0x00000000004DD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-17 07:36
Reported
2024-06-17 07:38
Platform
win10v2004-20240611-en
Max time kernel
142s
Max time network
151s
Command Line
Signatures
AsyncRat
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\LicGen.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Duyiyilycdc = "C:\\Users\\Admin\\AppData\\Roaming\\Duyiyilycdc.exe" | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2528 set thread context of 1128 | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
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 |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe
"C:\Users\Admin\AppData\Local\Temp\35e31d508c28c89153ef55ffe8c8ba53.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHAAYQB0ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHoAdgB3ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHcAcwB0ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHUAZABuACMAPgA="
C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe
"C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe"
C:\Users\Admin\AppData\Local\Temp\LicGen.exe
"C:\Users\Admin\AppData\Local\Temp\LicGen.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.89:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| NL | 23.62.61.89:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 89.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5512.sytes.net | udp |
| NL | 37.48.64.238:7707 | 5512.sytes.net | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 238.64.48.37.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.121.18.2.in-addr.arpa | udp |
| NL | 37.48.64.238:7707 | 5512.sytes.net | tcp |
| NL | 95.211.208.153:6606 | tcp | |
| US | 8.8.8.8:53 | 153.208.211.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\Zcsbaibfhun.exe
| MD5 | 5870c41c149fdd038336b2a1b2103e2f |
| SHA1 | d3efce3cc94fb928113481aee8d58cdeea24a708 |
| SHA256 | 9b489f300c3797e9d343a47ecd96e83646a61b02c28b5e68071d26a5a666c929 |
| SHA512 | 9fdbc2281e54dc640e8b2598faedabffe70f3fc739d88a603c0d43a8496fc08b07fcebd63fabd11d69c3393edb28eec867ab505a5c694ebe17632d04fe8952a7 |
C:\Users\Admin\AppData\Local\Temp\LicGen.exe
| MD5 | 63404fb2f5a0d14e7a19fa3e4b8af577 |
| SHA1 | 12d4ecfcfe8f9fa53fbc4f7addb43ab118da8255 |
| SHA256 | d599ed299630b163afb1aa64f6f5bdd92969dd9abfca1e32d1df4a93608fefeb |
| SHA512 | 19aae9580fa9be4c14401f144f04366a1c21cb9c9ae268a4e75f9e0364f49e9e18242ec0f49c7ec349328530b960b3890e1197d417db9986c763e098844e7416 |
memory/4424-21-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/2528-22-0x000000007366E000-0x000000007366F000-memory.dmp
memory/2528-23-0x00000000006D0000-0x0000000000932000-memory.dmp
memory/2444-24-0x0000000002940000-0x0000000002976000-memory.dmp
memory/2444-26-0x0000000005090000-0x00000000056B8000-memory.dmp
memory/2444-30-0x0000000002A20000-0x0000000002A30000-memory.dmp
memory/2528-29-0x0000000005300000-0x0000000005310000-memory.dmp
memory/2528-31-0x0000000005310000-0x0000000005530000-memory.dmp
memory/2528-32-0x0000000006660000-0x0000000006882000-memory.dmp
memory/2444-28-0x0000000002A20000-0x0000000002A30000-memory.dmp
memory/4424-27-0x0000000000850000-0x0000000000851000-memory.dmp
memory/2444-25-0x0000000073660000-0x0000000073E10000-memory.dmp
memory/2528-33-0x0000000006E30000-0x00000000073D4000-memory.dmp
memory/2444-34-0x0000000004FB0000-0x0000000004FD2000-memory.dmp
memory/2528-35-0x0000000006990000-0x0000000006A22000-memory.dmp
memory/2444-37-0x00000000058A0000-0x0000000005906000-memory.dmp
memory/2444-36-0x0000000005830000-0x0000000005896000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3ahtz0zr.eme.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2444-47-0x0000000005910000-0x0000000005C64000-memory.dmp
memory/2444-48-0x0000000005EF0000-0x0000000005F0E000-memory.dmp
memory/2444-49-0x0000000005F30000-0x0000000005F7C000-memory.dmp
memory/2528-65-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-69-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-95-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-113-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-111-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-109-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-107-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-105-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-103-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-101-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-99-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-97-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-93-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-91-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-89-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-87-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-85-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-83-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-81-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-79-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-77-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-75-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-73-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-71-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-67-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-63-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-61-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-59-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-57-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-50-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-56-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-54-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2528-51-0x0000000006660000-0x000000000687C000-memory.dmp
memory/2444-348-0x00000000070F0000-0x0000000007193000-memory.dmp
memory/2444-350-0x0000000007220000-0x000000000723A000-memory.dmp
memory/2444-351-0x0000000007290000-0x000000000729A000-memory.dmp
memory/2444-352-0x00000000074B0000-0x0000000007546000-memory.dmp
memory/2444-349-0x0000000007860000-0x0000000007EDA000-memory.dmp
memory/2444-347-0x00000000064D0000-0x00000000064EE000-memory.dmp
memory/2444-337-0x0000000073F40000-0x0000000073F8C000-memory.dmp
memory/2444-336-0x0000000006EB0000-0x0000000006EE2000-memory.dmp
memory/2444-1686-0x0000000006180000-0x0000000006191000-memory.dmp
memory/2444-3209-0x0000000007480000-0x000000000748E000-memory.dmp
memory/2444-3594-0x0000000007490000-0x00000000074A4000-memory.dmp
memory/2444-3893-0x0000000007570000-0x000000000758A000-memory.dmp
memory/2444-4065-0x0000000007560000-0x0000000007568000-memory.dmp
memory/2528-4960-0x0000000006AB0000-0x0000000006B0C000-memory.dmp
memory/2528-4961-0x0000000006C40000-0x0000000006C8C000-memory.dmp
memory/2444-4962-0x0000000073660000-0x0000000073E10000-memory.dmp
memory/2528-4963-0x0000000007750000-0x00000000077A4000-memory.dmp
memory/1128-4967-0x0000000000400000-0x0000000000412000-memory.dmp
memory/4424-4972-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/1128-4973-0x00000000050B0000-0x000000000514C000-memory.dmp
memory/4424-4974-0x0000000000850000-0x0000000000851000-memory.dmp