Analysis
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max time kernel
149s -
max time network
49s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
11/07/2020, 08:47
Static task
static1
Behavioral task
behavioral1
Sample
PO 32133311.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
PO 32133311.exe
Resource
win10v200430
windows10_x64
0 signatures
0 seconds
General
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Target
PO 32133311.exe
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Size
1.1MB
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MD5
d9a806cbd0892008214dc9d7ea929e42
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SHA1
d2a4000105e47ffad495f864a55822658a198724
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SHA256
bf9caae4940f91401db499ed61a89d3e5ed867bc846f229cced95288739f8dc6
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SHA512
718eb3a45afa81822cd75e418a8a684b3d3dd3c42fb0857799f0294c853c3a16e146f5afc89933bbe49cfc0ee49a4127c8734fc3f09bd6aaca9f04daf0726ea5
Malware Config
Extracted
Family
agenttesla
Credentials
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
esut96092
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/3848-6-0x0000000000900000-0x0000000000E6C000-memory.dmp family_agenttesla behavioral2/memory/3848-7-0x000000000094750E-mapping.dmp family_agenttesla -
Executes dropped EXE 2 IoCs
pid Process 2208 nmmxo.pif 3848 RegSvcs.exe -
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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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run nmmxo.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winlogon.exe = "c:\\91352782\\nmmxo.pif c:\\91352782\\msrox.wuj" nmmxo.pif -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2208 set thread context of 3848 2208 nmmxo.pif 70 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 3848 RegSvcs.exe 3848 RegSvcs.exe 3848 RegSvcs.exe 3848 RegSvcs.exe 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 3848 RegSvcs.exe 3848 RegSvcs.exe 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif 2208 nmmxo.pif -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3848 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3848 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2804 wrote to memory of 2208 2804 PO 32133311.exe 68 PID 2804 wrote to memory of 2208 2804 PO 32133311.exe 68 PID 2804 wrote to memory of 2208 2804 PO 32133311.exe 68 PID 2208 wrote to memory of 3848 2208 nmmxo.pif 70 PID 2208 wrote to memory of 3848 2208 nmmxo.pif 70 PID 2208 wrote to memory of 3848 2208 nmmxo.pif 70 PID 2208 wrote to memory of 3848 2208 nmmxo.pif 70 PID 2208 wrote to memory of 3848 2208 nmmxo.pif 70
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 32133311.exe"C:\Users\Admin\AppData\Local\Temp\PO 32133311.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\91352782\nmmxo.pif"C:\91352782\nmmxo.pif" msrox.wuj2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3848
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