Analysis
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max time kernel
114s -
max time network
121s -
platform
windows7_x64 -
resource
win7 -
submitted
31-07-2020 17:15
Static task
static1
Behavioral task
behavioral1
Sample
NEW RFQ.exe
Resource
win7
Behavioral task
behavioral2
Sample
NEW RFQ.exe
Resource
win10v200722
General
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Target
NEW RFQ.exe
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Size
726KB
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MD5
2b3645fa1dba023aa4f7a32b84242839
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SHA1
ff913e68785f4aab041c85fce1e039087fc09757
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SHA256
a7879f81b9af693705fbbda07a1a2a5ebfdcccc7b1184f70fd6d3285da9f2f2d
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SHA512
e10b5b68580b62d072369edcde86a0253c2c9a0d8604dbee2d482735aeab302e76d6e38864c2919b9538bacebba5fe8f9596a5356d49e5f243e5b9ee6a9789d9
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.flsrnidth.com - Port:
587 - Username:
subbarayan.sathiyaraj@flsrnidth.com - Password:
x{Op,7(4O+yl
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
Processes:
resource yara_rule behavioral1/memory/1788-5-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1788-6-0x000000000044729E-mapping.dmp family_agenttesla behavioral1/memory/1788-7-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1788-8-0x0000000000400000-0x000000000044C000-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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
NEW RFQ.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" NEW RFQ.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEW RFQ.exedescription pid process target process PID 1612 set thread context of 1788 1612 NEW RFQ.exe NEW RFQ.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
NEW RFQ.exeNEW RFQ.exepid process 1612 NEW RFQ.exe 1612 NEW RFQ.exe 1612 NEW RFQ.exe 1612 NEW RFQ.exe 1612 NEW RFQ.exe 1612 NEW RFQ.exe 1788 NEW RFQ.exe 1788 NEW RFQ.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
NEW RFQ.exepid process 1788 NEW RFQ.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
NEW RFQ.exeNEW RFQ.exedescription pid process Token: SeDebugPrivilege 1612 NEW RFQ.exe Token: SeDebugPrivilege 1788 NEW RFQ.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
NEW RFQ.exedescription pid process target process PID 1612 wrote to memory of 1768 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1768 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1768 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1768 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1824 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1824 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1824 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1824 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe PID 1612 wrote to memory of 1788 1612 NEW RFQ.exe NEW RFQ.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEW RFQ.exe"C:\Users\Admin\AppData\Local\Temp\NEW RFQ.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\NEW RFQ.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\NEW RFQ.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\NEW RFQ.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1612-1-0x0000000000000000-0x0000000000000000-disk.dmp
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memory/1788-5-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1788-6-0x000000000044729E-mapping.dmp
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memory/1788-7-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1788-8-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB