Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
12/06/2024, 01:56
Static task
static1
Behavioral task
behavioral1
Sample
a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
Resource
win10v2004-20240611-en
General
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Target
a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
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Size
1.6MB
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MD5
2fa23a2e93b10ae07013e24692f35b6d
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SHA1
9481be2f68a244f9825295fda01c5f1fce66648d
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SHA256
a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265
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SHA512
21ecbe170b529c7373d9eda6750eaa7c7a578d995e75f54c4466ae2132dae0ec5f2d79e4fefceb05016b965031d2fdf568da604dfb367a886face4af10c5bacd
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SSDEEP
12288:HEzZEAmD9/RR3biUuyjpgebm6YRAbAZRwox15bGz5XWCMmsI8txwFF71a0:HEzZ6/RR3b4spUZRJ15beWCMmywPp
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.trisquarespl.com - Port:
587 - Username:
[email protected] - Password:
#)YFjJf1 - 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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Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
resource yara_rule behavioral2/memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
resource yara_rule behavioral2/memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables packed with or use KoiVM 1 IoCs
resource yara_rule behavioral2/memory/2764-3-0x0000017CC3C40000-0x0000017CC3CD4000-memory.dmp INDICATOR_EXE_Packed_KoiVM -
Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
resource yara_rule behavioral2/memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/2412-4-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
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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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 3 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2764 set thread context of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2412 regasm.exe 2412 regasm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe Token: SeDebugPrivilege 2412 regasm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 2412 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 82 PID 2764 wrote to memory of 4620 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 83 PID 2764 wrote to memory of 4620 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 83 PID 2764 wrote to memory of 4620 2764 a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe"C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2412
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵PID:4620
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