masslogger | 192896dbc7744f51c63044f4bf8a0fd260cc73ddcc84200161ce45b81c7e9e50

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	DEBIT SLIP.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
784	DEBIT SLIP.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DEBIT SLIP.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DEBIT SLIP.exe

Modifies the visibility of hidden or system files 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	DEBIT SLIP.exe

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

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 1764	1520	DEBIT SLIP.exe	27
PID 1520 wrote to memory of 1764	1520	DEBIT SLIP.exe	27
PID 1520 wrote to memory of 1764	1520	DEBIT SLIP.exe	27
PID 1520 wrote to memory of 1764	1520	DEBIT SLIP.exe	27
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 1520 wrote to memory of 784	1520	DEBIT SLIP.exe	29
PID 784 wrote to memory of 1612	784	DEBIT SLIP.exe	30
PID 784 wrote to memory of 1612	784	DEBIT SLIP.exe	30
PID 784 wrote to memory of 1612	784	DEBIT SLIP.exe	30
PID 784 wrote to memory of 1612	784	DEBIT SLIP.exe	30
PID 1612 wrote to memory of 1952	1612	cmd.exe	32
PID 1612 wrote to memory of 1952	1612	cmd.exe	32
PID 1612 wrote to memory of 1952	1612	cmd.exe	32
PID 1612 wrote to memory of 1952	1612	cmd.exe	32

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	784	DEBIT SLIP.exe
Token: SeDebugPrivilege	1952	powershell.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	DEBIT SLIP.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	DEBIT SLIP.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1520 set thread context of 784	1520	DEBIT SLIP.exe	29

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	DEBIT SLIP.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

pid	Process
1764	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\DEBIT SLIP.exe
"C:\Users\Admin\AppData\Local\Temp\DEBIT SLIP.exe"
1⤵
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Suspicious use of WriteProcessMemory
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Looks for VirtualBox Guest Additions in registry
PID:1520
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZAbUGjxkoulYQa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49FA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1764
- C:\Users\Admin\AppData\Local\Temp\DEBIT SLIP.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious behavior: AddClipboardFormatListener
  - Modifies the visibility of hidden or system files
  - Suspicious use of WriteProcessMemory
  - Suspicious use of AdjustPrivilegeToken
  PID:784
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c start /b powershell Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\DEBIT SLIP.exe' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1612
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\DEBIT SLIP.exe'
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

Lateral Movement

Collection

Data from Local System