Analysis
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max time kernel
60s -
max time network
114s -
platform
windows7_x64 -
resource
win7v20201028 -
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 4 IoCs
resource yara_rule behavioral1/memory/1484-10-0x00000000004819CE-mapping.dmp family_masslogger behavioral1/memory/1484-9-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1484-11-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1484-12-0x0000000000400000-0x0000000000486000-memory.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-1-5-21-3825035466-2522850611-591511364-1000\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 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 596 set thread context of 1484 596 PURCHASE.exe 31 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 396 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1484 PURCHASE.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1484 PURCHASE.exe 1484 PURCHASE.exe 1484 PURCHASE.exe 1484 PURCHASE.exe 1512 powershell.exe 1512 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1484 PURCHASE.exe Token: SeDebugPrivilege 1512 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1484 PURCHASE.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 596 wrote to memory of 396 596 PURCHASE.exe 29 PID 596 wrote to memory of 396 596 PURCHASE.exe 29 PID 596 wrote to memory of 396 596 PURCHASE.exe 29 PID 596 wrote to memory of 396 596 PURCHASE.exe 29 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 596 wrote to memory of 1484 596 PURCHASE.exe 31 PID 1484 wrote to memory of 1512 1484 PURCHASE.exe 33 PID 1484 wrote to memory of 1512 1484 PURCHASE.exe 33 PID 1484 wrote to memory of 1512 1484 PURCHASE.exe 33 PID 1484 wrote to memory of 1512 1484 PURCHASE.exe 33
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 use of WriteProcessMemory
PID:596 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sWiACXUvRplzzN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA05.tmp"2⤵
- Creates scheduled task(s)
PID:396
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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:1484 -
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:1512
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