Analysis
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max time kernel
115s -
max time network
120s -
platform
windows7_x64 -
resource
win7 -
submitted
13-07-2020 11:50
Static task
static1
Behavioral task
behavioral1
Sample
Document4757845845502135324062020_scanned from a xerox device0011.exe
Resource
win7
Behavioral task
behavioral2
Sample
Document4757845845502135324062020_scanned from a xerox device0011.exe
Resource
win10v200430
General
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Target
Document4757845845502135324062020_scanned from a xerox device0011.exe
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Size
463KB
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MD5
145e9a676c3c22314d3934137d4132cd
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SHA1
c2084db9f6186ec89fea7d387bad77d4d236e38f
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SHA256
585e690019421f6c49788efb03557062d871fb8a01a3bff5f1c20bd8227b19fb
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SHA512
8e2cb20246d27c8ea83a62c64cec830445f1b557672a140a610ce44157f16a1768d650abad8d6631fdd04d299c4b4a5c7ad2b7055cc025da35443c2683f83258
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.flowtech-eng.net - Port:
587 - Username:
[email protected] - Password:
YosfPpx4
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/1792-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1792-5-0x0000000000446DCE-mapping.dmp family_agenttesla behavioral1/memory/1792-6-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1792-7-0x0000000000400000-0x000000000044C000-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 1612 set thread context of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 -
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 1708 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1792 Document4757845845502135324062020_scanned from a xerox device0011.exe 1792 Document4757845845502135324062020_scanned from a xerox device0011.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1792 Document4757845845502135324062020_scanned from a xerox device0011.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1612 wrote to memory of 1708 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 24 PID 1612 wrote to memory of 1708 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 24 PID 1612 wrote to memory of 1708 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 24 PID 1612 wrote to memory of 1708 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 24 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26 PID 1612 wrote to memory of 1792 1612 Document4757845845502135324062020_scanned from a xerox device0011.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\Document4757845845502135324062020_scanned from a xerox device0011.exe"C:\Users\Admin\AppData\Local\Temp\Document4757845845502135324062020_scanned from a xerox device0011.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\poSJqPWEk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp87A5.tmp"2⤵
- Creates scheduled task(s)
PID:1708
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C:\Users\Admin\AppData\Local\Temp\Document4757845845502135324062020_scanned from a xerox device0011.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1792
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