Analysis
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max time kernel
140s -
max time network
142s -
platform
windows10_x64 -
resource
win10 -
submitted
30-06-2020 17:30
Static task
static1
Behavioral task
behavioral1
Sample
yyyyyy.exe
Resource
win7v200430
General
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Target
yyyyyy.exe
-
Size
942KB
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MD5
ad520c8794875fc5dfa4e5db1f97b634
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SHA1
9b99a679b1d0df84f4f634ff16a182ee6086b44b
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SHA256
b58248fcc771ae21b12857d72462c26ae30f3234bd5095986079c7b807791fa6
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SHA512
b6792047c99a31e6d60f057f2b7b18a517fe97e7c55cdb510aa2344df283a6a5da0242887600a90fe1a6b9459fa424faeb4a6fb424fa6e3298b8ad378b428a13
Malware Config
Extracted
Protocol: smtp- Host:
mail.materialsmiquel.com - Port:
587 - Username:
antoni@materialsmiquel.com - Password:
fa5pEpewrE8a
Extracted
agenttesla
Protocol: smtp- Host:
mail.materialsmiquel.com - Port:
587 - Username:
antoni@materialsmiquel.com - Password:
fa5pEpewrE8a
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3936-1-0x00000000004A24D0-mapping.dmp family_agenttesla behavioral2/memory/3936-4-0x0000000000400000-0x00000000004A4000-memory.dmp family_agenttesla behavioral2/memory/3936-5-0x0000000000990000-0x00000000009DC000-memory.dmp family_agenttesla -
Processes:
resource yara_rule behavioral2/memory/3936-0-0x0000000000400000-0x00000000004A4000-memory.dmp upx behavioral2/memory/3936-3-0x0000000000400000-0x00000000004A4000-memory.dmp upx behavioral2/memory/3936-4-0x0000000000400000-0x00000000004A4000-memory.dmp upx -
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
Processes:
yyyyyy.exedescription pid process target process PID 3100 set thread context of 3936 3100 yyyyyy.exe yyyyyy.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
yyyyyy.exeyyyyyy.exepid process 3100 yyyyyy.exe 3100 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe 8 yyyyyy.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
yyyyyy.exepid process 3100 yyyyyy.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
yyyyyy.exedescription pid process Token: SeDebugPrivilege 3936 yyyyyy.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
yyyyyy.exedescription pid process target process PID 3100 wrote to memory of 3936 3100 yyyyyy.exe yyyyyy.exe PID 3100 wrote to memory of 3936 3100 yyyyyy.exe yyyyyy.exe PID 3100 wrote to memory of 3936 3100 yyyyyy.exe yyyyyy.exe PID 3100 wrote to memory of 8 3100 yyyyyy.exe yyyyyy.exe PID 3100 wrote to memory of 8 3100 yyyyyy.exe yyyyyy.exe PID 3100 wrote to memory of 8 3100 yyyyyy.exe yyyyyy.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\yyyyyy.exe"C:\Users\Admin\AppData\Local\Temp\yyyyyy.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\yyyyyy.exe"C:\Users\Admin\AppData\Local\Temp\yyyyyy.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\yyyyyy.exe"C:\Users\Admin\AppData\Local\Temp\yyyyyy.exe" 2 3936 579842⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/8-2-0x0000000000000000-mapping.dmp
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memory/3936-0-0x0000000000400000-0x00000000004A4000-memory.dmpFilesize
656KB
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memory/3936-1-0x00000000004A24D0-mapping.dmp
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memory/3936-3-0x0000000000400000-0x00000000004A4000-memory.dmpFilesize
656KB
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memory/3936-4-0x0000000000400000-0x00000000004A4000-memory.dmpFilesize
656KB
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memory/3936-5-0x0000000000990000-0x00000000009DC000-memory.dmpFilesize
304KB
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memory/3936-6-0x0000000002402000-0x0000000002403000-memory.dmpFilesize
4KB