Analysis
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max time kernel
93s -
max time network
48s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
09/07/2020, 12:15
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Invoice.exe
Resource
win10
General
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Target
Invoice.exe
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Size
533KB
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MD5
676213812fcd942f150519418bad81f0
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SHA1
63c6513df8879238baef6869bd2c2c5324626337
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SHA256
c8f62dda091a29ed35c26e212840d0c260c9f420f5a7940b2b1f088ad10a3c2d
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SHA512
945e542fc9dca0dc00f342749fd4662fadf68b2284b8955211771f8a4d2bf897e12ee10fe9435b57bdd757aa954a239ed0f42d5e787f827113e69f825262b730
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.visgring.com - Port:
587 - Username:
[email protected] - Password:
uqtQpAv1
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1860-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1860-3-0x000000000044695E-mapping.dmp family_agenttesla behavioral1/memory/1860-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1860-5-0x0000000000400000-0x000000000044C000-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 1500 set thread context of 1860 1500 Invoice.exe 26 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1860 Invoice.exe 1860 Invoice.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1860 Invoice.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26 PID 1500 wrote to memory of 1860 1500 Invoice.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1860
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