Analysis
- max time kernel
110s - max time network
111s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:35
Static task
static1
Behavioral task
behavioral1
Sample
mKQqraplVchc4AK.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
mKQqraplVchc4AK.exe
Resource
win10v20201028
General
- Target mKQqraplVchc4AK.exe
- Size 1.1MB
- Sample201109-xtehe7wdca
- SHA256 4fd457b5e2ff2430dbce5692ba6c47253ade9e105ffb192d01aee29d6ba7c912
- MD5 a81765eb94795bb560fa87731c61c6cc
- SHA1 5441d0017a04bd252c43b0d1b5c002de109d1435
- SHA512 c4da3d485404c09aaac5873d5c756f0cb742e63ea0ae183a99fc05f86be9676d0717645241c4a78298bd15ff821203cabbf506d9d2d9b154495491439081e48c
- MD5 SHA1 SHA512
Malware Config
Extracted
-
C:\Users\Admin\AppData\Local\Temp\109933CE9F\Log.txt
-
masslogger
- ################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Persocon Processor 2.5+ GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/10/2020 9:40:42 PM MassLogger Started: 11/10/2020 9:40:40 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\mKQqraplVchc4AK.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:
Extracted
-
Protocol
smtp
-
Host
mail.privateemail.com
-
Port
587
-
Username
-
Password
MOREMONEY123
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
yara_rule masslogger_log_file -
resource yara_rule behavioral2/memory/4632-9-0x0000000007D90000-0x0000000007E42000-memory.dmp rezer0 - 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-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation mKQqraplVchc4AK.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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 17 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4632 set thread context of 992 4632 mKQqraplVchc4AK.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 4164 schtasks.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 992 mKQqraplVchc4AK.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 992 mKQqraplVchc4AK.exe 992 mKQqraplVchc4AK.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 992 mKQqraplVchc4AK.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 992 mKQqraplVchc4AK.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4632 wrote to memory of 4164 4632 mKQqraplVchc4AK.exe 78 PID 4632 wrote to memory of 4164 4632 mKQqraplVchc4AK.exe 78 PID 4632 wrote to memory of 4164 4632 mKQqraplVchc4AK.exe 78 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80 PID 4632 wrote to memory of 992 4632 mKQqraplVchc4AK.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\mKQqraplVchc4AK.exe"C:\Users\Admin\AppData\Local\Temp\mKQqraplVchc4AK.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4632 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TpKzJpK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp76D7.tmp"2⤵
- Creates scheduled task(s)
PID:4164
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C:\Users\Admin\AppData\Local\Temp\mKQqraplVchc4AK.exe"{path}"2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:992
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