Analysis Overview
SHA256
28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800
Threat Level: Known bad
The file 28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe was found to be: Known bad.
Malicious Activity Summary
AgentTesla
Detects executables packed with or use KoiVM
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Detect packed .NET executables. Mostly AgentTeslaV4.
Detects executables referencing Windows vault credential objects. Observed in infostealers
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Detects executables referencing many email and collaboration clients. Observed in information stealers
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Detects executables referencing many file transfer clients. Observed in information stealers
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Unsigned PE
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-08 01:11
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-08 01:11
Reported
2024-04-08 01:14
Platform
win7-20231129-en
Max time kernel
117s
Max time network
119s
Command Line
Signatures
AgentTesla
Detect packed .NET executables. Mostly AgentTeslaV4.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Detects executables packed with or use KoiVM
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables referencing Windows vault credential objects. Observed in infostealers
| 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 |
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| N/A | N/A | N/A | N/A |
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Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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Detects executables referencing many email and collaboration clients. Observed in information stealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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Detects executables referencing many file transfer clients. Observed in information stealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\ZUHFqcY = "C:\\Users\\Admin\\AppData\\Roaming\\ZUHFqcY\\ZUHFqcY.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1044 set thread context of 1948 | N/A | C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe
"C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1044 -s 656
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
Files
memory/1044-0-0x0000000000AA0000-0x0000000000AAA000-memory.dmp
memory/1044-1-0x000007FEF5B50000-0x000007FEF653C000-memory.dmp
memory/1044-2-0x000000001A6F0000-0x000000001A770000-memory.dmp
memory/1044-3-0x0000000000770000-0x0000000000806000-memory.dmp
memory/1948-4-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-6-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-8-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-10-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1948-13-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-17-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-15-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1948-18-0x0000000074990000-0x000000007507E000-memory.dmp
memory/1948-19-0x0000000004950000-0x0000000004990000-memory.dmp
memory/1044-21-0x000007FEF5B50000-0x000007FEF653C000-memory.dmp
memory/1044-22-0x000000001A6F0000-0x000000001A770000-memory.dmp
memory/1948-23-0x0000000074990000-0x000000007507E000-memory.dmp
memory/1948-24-0x0000000004950000-0x0000000004990000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-08 01:11
Reported
2024-04-08 01:14
Platform
win10v2004-20240226-en
Max time kernel
91s
Max time network
143s
Command Line
Signatures
AgentTesla
Detect packed .NET executables. Mostly AgentTeslaV4.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables packed with or use KoiVM
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables referencing Windows vault credential objects. Observed in infostealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables referencing many email and collaboration clients. Observed in information stealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables referencing many file transfer clients. Observed in information stealers
| 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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ZUHFqcY = "C:\\Users\\Admin\\AppData\\Roaming\\ZUHFqcY\\ZUHFqcY.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2240 set thread context of 5000 | N/A | C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.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\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe
"C:\Users\Admin\AppData\Local\Temp\28f97b4c8d62f489f741bede6f460561091d16444a5511fde96ff97d79224800.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5000 -ip 5000
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 1092
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 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.118.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/2240-0-0x00000293D9120000-0x00000293D912A000-memory.dmp
memory/2240-1-0x00000293F3550000-0x00000293F35C6000-memory.dmp
memory/2240-2-0x00007FFD6A3A0000-0x00007FFD6AE61000-memory.dmp
memory/2240-3-0x00000293F3700000-0x00000293F3710000-memory.dmp
memory/2240-4-0x00000293DADE0000-0x00000293DADFE000-memory.dmp
memory/2240-5-0x00000293F35D0000-0x00000293F3666000-memory.dmp
memory/5000-6-0x0000000000400000-0x0000000000442000-memory.dmp
memory/5000-7-0x0000000075080000-0x0000000075830000-memory.dmp
memory/5000-8-0x00000000056F0000-0x0000000005C94000-memory.dmp
memory/2240-9-0x00007FFD6A3A0000-0x00007FFD6AE61000-memory.dmp
memory/5000-10-0x0000000005020000-0x0000000005030000-memory.dmp
memory/5000-11-0x0000000005240000-0x00000000052A6000-memory.dmp
memory/5000-13-0x0000000075080000-0x0000000075830000-memory.dmp