Analysis
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max time kernel
119s -
max time network
121s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
01/12/2020, 14:19
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
PURCHASE.exe
Resource
win10v20201028
General
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Target
PURCHASE.exe
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Size
1.0MB
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MD5
9d1cdf69f551af40c1a7751c978cf097
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SHA1
bb7e5cd610da1dfe8004ef3bbca45013b502f7bf
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SHA256
01b712edb711a5ff50c21720fbca31081e9e376b4abd410f235d6d0e0d043726
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SHA512
d88ff5f569071d96589793fc4b693e158fef351f553a5cd189ac10c295b0df9636cce6d3e41d0b70dc318fe86c65e6983f94c861b9e177d06b83cea9341f1e0c
Malware Config
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 2 IoCs
resource yara_rule behavioral2/memory/992-14-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral2/memory/992-15-0x00000000004819CE-mapping.dmp family_masslogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Control Panel\International\Geo\Nation PURCHASE.exe -
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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 20 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4688 set thread context of 992 4688 PURCHASE.exe 80 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 632 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 992 PURCHASE.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4688 PURCHASE.exe 992 PURCHASE.exe 992 PURCHASE.exe 992 PURCHASE.exe 992 PURCHASE.exe 1684 powershell.exe 1684 powershell.exe 1684 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4688 PURCHASE.exe Token: SeDebugPrivilege 992 PURCHASE.exe Token: SeDebugPrivilege 1684 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 992 PURCHASE.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4688 wrote to memory of 632 4688 PURCHASE.exe 78 PID 4688 wrote to memory of 632 4688 PURCHASE.exe 78 PID 4688 wrote to memory of 632 4688 PURCHASE.exe 78 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 4688 wrote to memory of 992 4688 PURCHASE.exe 80 PID 992 wrote to memory of 1684 992 PURCHASE.exe 82 PID 992 wrote to memory of 1684 992 PURCHASE.exe 82 PID 992 wrote to memory of 1684 992 PURCHASE.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4688 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sWiACXUvRplzzN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2636.tmp"2⤵
- Creates scheduled task(s)
PID:632
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C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"{path}"2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:992 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1684
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