Analysis
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max time kernel
119s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10-05-2024 08:47
Static task
static1
Behavioral task
behavioral1
Sample
a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe
Resource
win10v2004-20240426-en
General
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Target
a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe
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Size
836KB
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MD5
5b29311375eb13e9ce4205d983dc49cd
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SHA1
39ecbb2f5e833ac22a6f3763a125df8f3605d3cf
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SHA256
a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a
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SHA512
72483b52f566f5ee860c0294b34d0abb6a3ed0218262c482e99d5741f8952a92b4f403f9000cd62223a8800fc758e4603ee8275167222c4ed94648b1dc8a702d
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SSDEEP
12288:CZqnHvjNIrpf9rN/mc/CFvzstbLM2XS3uxsM6AgKH2e3ZFzJnbP93xE6DlI50Xz1:C0PjKr5BNDHbzDx3VgYJjh2OlLz1
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.sibasultrasonics.com - Port:
587 - Username:
[email protected] - Password:
wxQ@kr-2OL,{ - 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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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 3064 powershell.exe 2700 powershell.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe" a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.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 2112 set thread context of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 -
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 2588 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 2524 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 2524 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 2700 powershell.exe 3064 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe Token: SeDebugPrivilege 2524 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe Token: SeDebugPrivilege 2700 powershell.exe Token: SeDebugPrivilege 3064 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2524 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2112 wrote to memory of 3064 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 28 PID 2112 wrote to memory of 3064 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 28 PID 2112 wrote to memory of 3064 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 28 PID 2112 wrote to memory of 3064 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 28 PID 2112 wrote to memory of 2700 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 30 PID 2112 wrote to memory of 2700 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 30 PID 2112 wrote to memory of 2700 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 30 PID 2112 wrote to memory of 2700 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 30 PID 2112 wrote to memory of 2588 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 32 PID 2112 wrote to memory of 2588 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 32 PID 2112 wrote to memory of 2588 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 32 PID 2112 wrote to memory of 2588 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 32 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34 PID 2112 wrote to memory of 2524 2112 a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3064
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JICwPVw.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2700
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JICwPVw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp400C.tmp"2⤵
- Creates scheduled task(s)
PID:2588
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C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2524
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5d3a5e992e0a74d3ddc2f7a992da1c89f
SHA17fb4854c0f9e36cf2289e95ff3338c550d6d22f5
SHA2568addbcf9f6d580ed7dbe316cca6605c783c572cbffeb6a8746c7d6988e8f4cc5
SHA512522f4fea07669ba5135014324042b3fe354dbd5a3347ca63eecc9af0e7f0671ae5b70a64ec453b432a1cfd0d01802ce566d05102906ef29f4b7dfadb21dca46d
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\JDWRNQBEGK6HNK6HF9SA.temp
Filesize7KB
MD5c5eb51324dfbba1cb223c4e6bcd38988
SHA1e2a3e3e333aa1f3aa7c1675bd18fb0be0076df03
SHA2566523a912137894d1b099e6cbd3e84f38afbc4907d3ed598268325c84da7958cf
SHA512962cbf5fe856125a509a595c2bbd4e920a9e2803fe1ca64ff6918d749d16c7726816c55bceb3d0944a8d8c7b7a72abff1c916d56dbd812f91906848e7926cbdc