Analysis
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max time kernel
128s -
max time network
131s -
platform
windows10_x64 -
resource
win10 -
submitted
08/07/2020, 07:23
Static task
static1
Behavioral task
behavioral1
Sample
PO Bailey Trading.exe
Resource
win7
Behavioral task
behavioral2
Sample
PO Bailey Trading.exe
Resource
win10
General
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Target
PO Bailey Trading.exe
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Size
496KB
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MD5
71356ff0f2fa689005df0babc4a77663
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SHA1
e7efa9c8dcbae95a01dd9534f0482ddf891e1a30
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SHA256
89b8f4141669958f852c84cffd319a1fc05f33bf925658a2e6eeb7d90b9c84c9
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SHA512
440c5fe46ce976f4a555a44c0faba58ea70b62b1ac008c578a27ba94c8fc13600d0299e543dfd44dd3400be18b447bbda92548b5aa2452fd843e6ec7b87f0477
Malware Config
Extracted
Protocol: smtp- Host:
mail.pierreinsurancebrokers.com - Port:
587 - Username:
[email protected] - Password:
advisor@1234
Extracted
agenttesla
Protocol: smtp- Host:
mail.pierreinsurancebrokers.com - Port:
587 - Username:
[email protected] - Password:
advisor@1234
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/4000-3-0x0000000000446C5E-mapping.dmp family_agenttesla behavioral2/memory/4000-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3920 set thread context of 4000 3920 PO Bailey Trading.exe 69 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 3424 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4000 PO Bailey Trading.exe 4000 PO Bailey Trading.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4000 PO Bailey Trading.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3920 wrote to memory of 3424 3920 PO Bailey Trading.exe 67 PID 3920 wrote to memory of 3424 3920 PO Bailey Trading.exe 67 PID 3920 wrote to memory of 3424 3920 PO Bailey Trading.exe 67 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69 PID 3920 wrote to memory of 4000 3920 PO Bailey Trading.exe 69
Processes
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C:\Users\Admin\AppData\Local\Temp\PO Bailey Trading.exe"C:\Users\Admin\AppData\Local\Temp\PO Bailey Trading.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ImqPufmufG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C90.tmp"2⤵
- Creates scheduled task(s)
PID:3424
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C:\Users\Admin\AppData\Local\Temp\PO Bailey Trading.exe"C:\Users\Admin\AppData\Local\Temp\PO Bailey Trading.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4000
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