Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
02/02/2024, 01:19
Static task
static1
Behavioral task
behavioral1
Sample
253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe
Resource
win10v2004-20231222-en
General
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Target
253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe
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Size
1.3MB
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MD5
c793adca45c1ca6eb6889ea1bf272576
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SHA1
92a8c98a018fdfb0a0b73c00185b7bf0f01eb03f
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SHA256
253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3
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SHA512
2fe0fa24980283b31a34b042cff4d4447f97b8bd62520f03d61c9453299954765a0af77675a3ba6b196c589ca3377603a70bbc36ee3b5efd17547d8cf7f05943
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SSDEEP
24576:+thxEbddNXjIZfYGAYFOZcT0lCuMUipMa9b:+tINTAfbFgcYwua9b
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.saitools.com - Port:
587 - Username:
[email protected] - Password:
ecotanksystems$0912
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 1 IoCs
resource yara_rule behavioral2/memory/4532-12-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1732 set thread context of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 4532 RegSvcs.exe 4532 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe Token: SeDebugPrivilege 4532 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4532 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 PID 1732 wrote to memory of 4532 1732 253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe 97 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe"C:\Users\Admin\AppData\Local\Temp\253dcfbdade771e6cd132e409e3bf520fecb68feb538515c2ad087a1dea17cc3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4532
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