Analysis
- max time kernel
129s - max time network
124s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
15/10/2021, 07:21
Static task
static1
Behavioral task
behavioral1
Sample
Sales_Receipt 5185.exe
Resource
win7-en-20211014
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Sales_Receipt 5185.exe
Resource
win10-en-20210920
0 signatures
0 seconds
General
- Target Sales_Receipt 5185.exe
- Size 376KB
- Sample211015-h6nrjsafe2
- SHA256 2e3aeb2d7f925dbb05adf41fb17d47abc66ff3a6328aed8f2d77115900a804fb
- MD5 d7c28b38cbbf44d3459ae1e1587050ce
- SHA1 67a55ef4e33bedf0c42e15e5e7ecaca28d973c1a
- SHA512 6e85539cd33ca00242cb72acbfc001dab9527b90f1e7ac381c88b592ecc06afd804506e2ea71f25141926544c3c6a9a61b8c8a79bbc1a2c9198c04ec2232c5f6
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
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Port
587
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Username
-
Password
e)cnIdR1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
resource yara_rule behavioral2/memory/1700-125-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1700-126-0x0000000000436D6E-mapping.dmp family_agenttesla behavioral2/memory/1700-132-0x0000000005560000-0x0000000005A5E000-memory.dmp family_agenttesla - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sales_Receipt 5185.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sales_Receipt 5185.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sales_Receipt 5185.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2068 set thread context of 1700 2068 Sales_Receipt 5185.exe 73 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 580 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2068 Sales_Receipt 5185.exe 2068 Sales_Receipt 5185.exe 2068 Sales_Receipt 5185.exe 2068 Sales_Receipt 5185.exe 1700 Sales_Receipt 5185.exe 1700 Sales_Receipt 5185.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2068 Sales_Receipt 5185.exe Token: SeDebugPrivilege 1700 Sales_Receipt 5185.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2068 wrote to memory of 580 2068 Sales_Receipt 5185.exe 70 PID 2068 wrote to memory of 580 2068 Sales_Receipt 5185.exe 70 PID 2068 wrote to memory of 580 2068 Sales_Receipt 5185.exe 70 PID 2068 wrote to memory of 3976 2068 Sales_Receipt 5185.exe 72 PID 2068 wrote to memory of 3976 2068 Sales_Receipt 5185.exe 72 PID 2068 wrote to memory of 3976 2068 Sales_Receipt 5185.exe 72 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 PID 2068 wrote to memory of 1700 2068 Sales_Receipt 5185.exe 73 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sales_Receipt 5185.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sales_Receipt 5185.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Sales_Receipt 5185.exe"C:\Users\Admin\AppData\Local\Temp\Sales_Receipt 5185.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bBArVqlCNNe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp391D.tmp"2⤵
- Creates scheduled task(s)
PID:580
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C:\Users\Admin\AppData\Local\Temp\Sales_Receipt 5185.exe"C:\Users\Admin\AppData\Local\Temp\Sales_Receipt 5185.exe"2⤵PID:3976
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C:\Users\Admin\AppData\Local\Temp\Sales_Receipt 5185.exe"C:\Users\Admin\AppData\Local\Temp\Sales_Receipt 5185.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1700
-