Analysis
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max time kernel
140s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2023 17:22
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20231023-en
General
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Target
tmp.exe
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Size
570KB
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MD5
65edafe0dc5427f4cec4e29ad9cb18bc
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SHA1
b971a6aaf0c0daa035d9186b9cc49e72a5fc9976
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SHA256
e68f725f8d131c3cc5e5cbac5bc454cd9c1848039ee706c975262ef2073e75d3
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SHA512
a0c4bb45bd0dfa245a13502f0e51758ca2ec878a9eeec3ec0b82cdb2125981bf0de89f07c84029360676149bb61476345a032c9338bf9a3e304ea4e9e4e6b8fe
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SSDEEP
12288:bXHfGsaMlvWCwqLRtT34We8Op0UHUpIPEGWQAwna:bXHe8BLRtTn52EG5Awna
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.experthvac.ro - Port:
21 - Username:
[email protected] - Password:
-8{jszMOY*Z8(~Za0#jyP%o7VoB.0)kk^)7_
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2772 set thread context of 4872 2772 tmp.exe 99 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2772 tmp.exe 2772 tmp.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2772 tmp.exe Token: SeDebugPrivilege 4872 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 PID 2772 wrote to memory of 4872 2772 tmp.exe 99 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4872
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