laplas | c66f14eccd510a623bd2df228b9ed8f8c6216d7c61114f8934055887f3dd257f

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	redlineStealer1.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2072	Check.exe
4524	MrNZOScJqI.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	redlineStealer1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	redlineStealer1.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	redlineStealer1.exe

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

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	redlineStealer1.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
704	redlineStealer1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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
1992	schtasks.exe

GoLang User-Agent 1 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	41	Go-http-client/1.1

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
704	redlineStealer1.exe
704	redlineStealer1.exe
704	redlineStealer1.exe
704	redlineStealer1.exe
2072	Check.exe
2072	Check.exe
4524	MrNZOScJqI.exe
4524	MrNZOScJqI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	704	redlineStealer1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 704 wrote to memory of 2072	704	redlineStealer1.exe	87
PID 704 wrote to memory of 2072	704	redlineStealer1.exe	87
PID 704 wrote to memory of 2072	704	redlineStealer1.exe	87
PID 2072 wrote to memory of 3612	2072	Check.exe	88
PID 2072 wrote to memory of 3612	2072	Check.exe	88
PID 2072 wrote to memory of 3612	2072	Check.exe	88
PID 3612 wrote to memory of 1992	3612	cmd.exe	90
PID 3612 wrote to memory of 1992	3612	cmd.exe	90
PID 3612 wrote to memory of 1992	3612	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\redlineStealer1.exe
"C:\Users\Admin\AppData\Local\Temp\redlineStealer1.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:704
- C:\Users\Admin\AppData\Local\Temp\Check.exe
  "C:\Users\Admin\AppData\Local\Temp\Check.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C schtasks /create /tn EYamHMPiGK /tr C:\Users\Admin\AppData\Roaming\EYamHMPiGK\MrNZOScJqI.exe /st 00:00 /du 9999:59 /sc once /ri 1 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3612
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn EYamHMPiGK /tr C:\Users\Admin\AppData\Roaming\EYamHMPiGK\MrNZOScJqI.exe /st 00:00 /du 9999:59 /sc once /ri 1 /f
      4⤵
      Creates scheduled task(s)
      PID:1992

C:\Users\Admin\AppData\Roaming\EYamHMPiGK\MrNZOScJqI.exe
C:\Users\Admin\AppData\Roaming\EYamHMPiGK\MrNZOScJqI.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

Web Service

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

4

System Information Discovery

4

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Web Service