Analysis
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max time kernel
120s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
07-12-2023 19:46
Static task
static1
Behavioral task
behavioral1
Sample
b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe
Resource
win10v2004-20231130-en
General
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Target
b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe
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Size
700KB
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MD5
573eabd03eb34d02b98e4e2403e2b8c7
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SHA1
76691bbc40f02ecfa50b81932f23f17efe257915
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SHA256
b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8
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SHA512
06847d8f67a9fde47dac66fad33e2c14e17d744921b7d0c0c47521e7f7c26aef7624a746c31fff8da9e3f6a071c9842e7c8f79bf1327f95e5b929c96f3bd3c3f
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SSDEEP
12288:NMeQaueH5qcFmyvE3EPnqeX6OdardDLynalRH1ycZUWwlJukj53rdYyZiVlGT27v:N5qcFmys3EPnqeDYtzlTnSzZhYyz1q
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.amtechcards.com - Port:
587 - Username:
[email protected] - Password:
]i[a(tUWlmp% - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\AmGHOWg = "C:\\Users\\Admin\\AppData\\Roaming\\AmGHOWg\\AmGHOWg.exe" RegSvcs.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2944 set thread context of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2636 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 2980 RegSvcs.exe 2980 RegSvcs.exe 2692 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe Token: SeDebugPrivilege 2980 RegSvcs.exe Token: SeDebugPrivilege 2692 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2980 RegSvcs.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2944 wrote to memory of 2692 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 28 PID 2944 wrote to memory of 2692 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 28 PID 2944 wrote to memory of 2692 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 28 PID 2944 wrote to memory of 2692 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 28 PID 2944 wrote to memory of 2636 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 30 PID 2944 wrote to memory of 2636 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 30 PID 2944 wrote to memory of 2636 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 30 PID 2944 wrote to memory of 2636 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 30 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32 PID 2944 wrote to memory of 2980 2944 b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe"C:\Users\Admin\AppData\Local\Temp\b77223fc6268c1558db0bf8c74024c83aa08c6f6adbd10740da756ff4849dec8exe.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nXBPha.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2692
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nXBPha" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB13.tmp"2⤵
- Creates scheduled task(s)
PID:2636
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2980
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD560534ec1814c1d1beef61086c2c2d9b9
SHA19a4488f8c08da020fdee7327fbfd69d4ba3af36d
SHA256ecd19abe66d30887a2e60613dec23717448940d3769f12b01c75127962eb588b
SHA5125425c5fa8d68fa412c2d6f1e973fe63503b3ed70ad8162b3b845cd97d27a339a4b1e7f1b810d598ff7bbfd3acec1b632882e191036a3004a17463c4b5d5a8cc9